The hash_accept function in crypto/algif_hash.c in the Linux kernel before 4.3.6 allows local users to cause a denial of service (OOPS) by attempting to trigger use of in-kernel hash algorithms for a socket that has received zero bytes of data.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - The hash_accept function in crypto/algif_hash.c in the Linux kernel before 4.3.6 allows local users to     cause a denial of service (OOPS) by attempting to trigger use of in-kernel hash algorithms for a socket     that has received zero bytes of data. (CVE-2016-8646)

Note that Nessus relies on the presence of the package as reported by the vendor.

According to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - Array index error in the tcm_vhost_make_tpg function in     drivers/vhost/scsi.c in the Linux kernel before 4.0     might allow guest OS users to cause a denial of service     (memory corruption) or possibly have unspecified other     impact via a crafted VHOST_SCSI_SET_ENDPOINT ioctl     call. NOTE: the affected function was renamed to     vhost_scsi_make_tpg before the vulnerability was     announced.(CVE-2015-4036i1/4%0

  - The llc_cmsg_rcv function in net/llc/af_llc.c in the     Linux kernel before 4.5.5 does not initialize a certain     data structure, which allows attackers to obtain     sensitive information from kernel stack memory by     reading a message.(CVE-2016-4485i1/4%0

  - The nr_recvmsg function in net/netrom/af_netrom.c in     the Linux kernel before 3.12.4 updates a certain length     value without ensuring that an associated data     structure has been initialized, which allows local     users to obtain sensitive information from kernel     memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg     system call.(CVE-2013-7269i1/4%0

  - The mct_u232_msr_to_state function in     drivers/usb/serial/mct_u232.c in the Linux kernel     before 4.5.1 allows physically proximate attackers to     cause a denial of service (NULL pointer dereference and     system crash) via a crafted USB device without two     interrupt-in endpoint descriptors.(CVE-2016-3136i1/4%0

  - An out-of-bounds memory access flaw, CVE-2014-7825, was     found in the syscall tracing functionality of the Linux     kernel's perf subsystem. A local, unprivileged user     could use this flaw to crash the system. Additionally,     an out-of-bounds memory access flaw, CVE-2014-7826, was     found in the syscall tracing functionality of the Linux     kernel's ftrace subsystem. On a system with ftrace     syscall tracing enabled, a local, unprivileged user     could use this flaw to crash the system, or escalate     their privileges.(CVE-2014-7826i1/4%0

  - Linux kernel built with the Kernel-based Virtual     Machine (CONFIG_KVM) support is vulnerable to a null     pointer dereference flaw. It could occur on x86     platform, when emulating an undefined instruction. An     attacker could use this flaw to crash the host kernel     resulting in DoS.(CVE-2016-8630i1/4%0

  - A flaw was found in the Linux kernel's ext4 filesystem.
    A local user can cause an out-of-bound access in     ext4_get_group_info function, a denial of service, and     a system crash by mounting and operating on a crafted     ext4 filesystem image.(CVE-2018-10881i1/4%0

  - The arch_timer_reg_read_stable macro in     arch/arm64/include/asm/arch_timer.h in the Linux kernel     before 4.13 allows local users to cause a denial of     service (infinite recursion) by writing to a file under     /sys/kernel/debug in certain circumstances, as     demonstrated by a scenario involving debugfs, ftrace,     PREEMPT_TRACER, and     FUNCTION_GRAPH_TRACER.(CVE-2017-18261i1/4%0

  - The ip6_route_add function in net/ipv6/route.c in the     Linux kernel through 3.13.6 does not properly count the     addition of routes, which allows remote attackers to     cause a denial of service (memory consumption) via a     flood of ICMPv6 Router Advertisement     packets.(CVE-2014-2309i1/4%0

  - In the Linux kernel before 4.20.2, kernel/sched/fair.c     mishandles leaf cfs_rq's, which allows attackers to     cause a denial of service (infinite loop in     update_blocked_averages) or possibly have unspecified     other impact by inducing a high load.(CVE-2018-20784i1/4%0

  - An issue was discovered in the F2FS filesystem code in     fs/f2fs/inline.c in the Linux kernel. A denial of     service due to the out-of-bounds memory access can     occur for a modified f2fs filesystem     image.(CVE-2018-13099i1/4%0

  - An out-of-bounds write vulnerability was found in the     Linux kernel's vmw_surface_define_ioctl() function, in     the 'drivers/gpu/drm/vmwgfx/vmwgfx_surface.c' file. Due     to the nature of the flaw, privilege escalation cannot     be fully ruled out, although we believe it is     unlikely.(CVE-2017-7294i1/4%0

  - A flaw was found in the way the Linux kernel's KVM     subsystem handled non-canonical addresses when     emulating instructions that change the RIP (for     example, branches or calls). A guest user with access     to an I/O or MMIO region could use this flaw to crash     the guest.(CVE-2014-3647i1/4%0

  - The __munlock_pagevec function in mm/mlock.c in the     Linux kernel, before 4.11.4, allows local users to     cause a denial of service (NR_MLOCK accounting     corruption) via crafted use of mlockall and munlockall     system calls.(CVE-2017-18221i1/4%0

  - ** RESERVED ** This candidate has been reserved by an     organization or individual that will use it when     announcing a new security problem. When the candidate     has been publicized, the details for this candidate     will be provided.(CVE-2018-1120i1/4%0

  - The proc_connectinfo() function in     'drivers/usb/core/devio.c' in the Linux kernel through     4.6 does not initialize a certain data structure, which     allows local users to obtain sensitive information from     kernel stack memory via a crafted USBDEVFS_CONNECTINFO     ioctl call. The stack object 'ci' has a total size of 8     bytes. Its last 3 bytes are padding bytes which are not     initialized and are leaked to     userland.(CVE-2016-4482i1/4%0

  - A vulnerability was found in the Linux kernel. An     unprivileged local user could trigger oops in     shash_async_export() by attempting to force the     in-kernel hashing algorithms into decrypting an empty     data set.(CVE-2016-8646i1/4%0

  - An issue was discovered in the btrfs filesystem code in     the Linux kernel. An invalid NULL pointer dereference     in btrfs_root_node() when mounting a crafted btrfs     image is due to a lack of chunk block group mapping     validation in btrfs_read_block_groups() in the     fs/btrfs/extent-tree.c function and a lack of     empty-tree checks in check_leaf() in     fs/btrfs/tree-checker.c function. This could lead to a     system crash and a denial of service.(CVE-2018-14612i1/4%0

  - It was found that the Linux kernel's TCP/IP protocol     suite implementation for IPv6 allowed the Hop Limit     value to be set to a smaller value than the default     one. An attacker on a local network could use this flaw     to prevent systems on that network from sending or     receiving network packets.(CVE-2015-2922i1/4%0

  - A NULL-pointer dereference flaw was found in the     kernel, which is caused by a race between revoking a     user-type key and reading from it. The issue could be     triggered by an unprivileged user with a local account,     causing the kernel to crash (denial of     service).(CVE-2015-7550i1/4%0

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - A use-after-free vulnerability was found in the     kernel's socket recvmmsg subsystem. This may allow     remote attackers to corrupt memory and may allow     execution of arbitrary code. This corruption takes     place during the error handling routines within
    __sys_recvmmsg() function.(CVE-2016-7117)

  - A heap-buffer overflow vulnerability was found in the     arcmsr_iop_message_xfer() function in     'drivers/scsi/arcmsr/arcmsr_hba.c' file in the Linux     kernel through 4.8.2. The function does not restrict a     certain length field, which allows local users to gain     privileges or cause a denial of service via an     ARCMSR_MESSAGE_WRITE_WQBUFFER control code. This can     potentially cause kernel heap corruption and arbitrary     kernel code execution.(CVE-2016-7425)

  - A flaw was found in the Linux kernel's implementation     of seq_file where a local attacker could manipulate     memory in the put() function pointer. This could lead     to memory corruption and possible privileged     escalation.(CVE-2016-7910)

  - A use-after-free vulnerability in sys_ioprio_get() was     found due to get_task_ioprio() accessing the     task-i1/4zio_context without holding the task lock and     could potentially race with exit_io_context(), leading     to a use-after-free.(CVE-2016-7911)

  - The xc2028_set_config function in     drivers/media/tuners/tuner-xc2028.c in the Linux kernel     before 4.6 allows local users to gain privileges or     cause a denial of service (use-after-free) via vectors     involving omission of the firmware name from a certain     data structure. Due to the nature of the flaw,     privilege escalation cannot be fully ruled out,     although we believe it is unlikely.(CVE-2016-7913)

  - The assoc_array_insert_into_terminal_node() function in     'lib/assoc_array.c' in the Linux kernel before 4.5.3     does not check whether a slot is a leaf, which allows     local users to obtain sensitive information from kernel     memory or cause a denial of service (invalid pointer     dereference and out-of-bounds read) via an application     that uses associative-array data     structures.(CVE-2016-7914)

  - The hid_input_field() function in     'drivers/hid/hid-core.c' in the Linux kernel before 4.6     allows physically proximate attackers to obtain     sensitive information from kernel memory or cause a     denial of service (out-of-bounds read) by connecting a     device.(CVE-2016-7915)

  - Race condition in the environ_read() function in     'fs/proc/base.c' in the Linux kernel before 4.5.4     allows local users to obtain sensitive information from     kernel memory by reading a '/proc/*/environ' file     during a process-setup time interval in which     environment-variable copying is     incomplete.(CVE-2016-7916)

  - A flaw was found in the Linux networking subsystem     where a local attacker with CAP_NET_ADMIN capabilities     could cause an out-of-bounds memory access by creating     a smaller-than-expected ICMP header and sending to its     destination via sendto().(CVE-2016-8399)

  - Linux kernel built with the Kernel-based Virtual     Machine (CONFIG_KVM) support is vulnerable to a null     pointer dereference flaw. It could occur on x86     platform, when emulating an undefined instruction. An     attacker could use this flaw to crash the host kernel     resulting in DoS.(CVE-2016-8630)

  - A buffer overflow vulnerability due to a lack of input     filtering of incoming fragmented datagrams was found in     the IP-over-1394 driver firewire-net in a fragment     handling code in the Linux kernel. The vulnerability     exists since firewire supported IPv4, i.e. since     version 2.6.31 (year 2009) till version v4.9-rc4. A     maliciously formed fragment with a respectively large     datagram offset would cause a memcpy() past the     datagram buffer, which would cause a system panic or     possible arbitrary code execution.The flaw requires     firewire-net module to be loaded and is remotely     exploitable from connected firewire devices, but not     over a local network.(CVE-2016-8633)

  - It was discovered that the Linux kernel since 3.6-rc1     with 'net.ipv4.tcp_fastopen' set to 1 can hit BUG()     statement in tcp_collapse() function after making a     number of certain syscalls leading to a possible system     crash.(CVE-2016-8645)

  - A vulnerability was found in the Linux kernel. An     unprivileged local user could trigger oops in     shash_async_export() by attempting to force the     in-kernel hashing algorithms into decrypting an empty     data set.(CVE-2016-8646)

  - A flaw was found in the Linux kernel key management     subsystem in which a local attacker could crash the     kernel or corrupt the stack and additional memory     (denial of service) by supplying a specially crafted     RSA key. This flaw panics the machine during the     verification of the RSA key.(CVE-2016-8650)

  - A race condition issue leading to a use-after-free flaw     was found in the way the raw packet sockets     implementation in the Linux kernel networking subsystem     handled synchronization while creating the TPACKET_V3     ring buffer. A local user able to open a raw packet     socket (requires the CAP_NET_RAW capability) could use     this flaw to elevate their privileges on the     system.(CVE-2016-8655)

  - A flaw was found in the way the Linux kernel's     networking subsystem handled offloaded packets with     multiple layers of encapsulation in the GRO (Generic     Receive Offload) code path. A remote attacker could use     this flaw to trigger unbounded recursion in the kernel     that could lead to stack corruption, resulting in a     system crash.(CVE-2016-8666)

  - A flaw was discovered in the Linux kernel's     implementation of VFIO. An attacker issuing an ioctl     can create a situation where memory is corrupted and     modify memory outside of the expected area. This may     overwrite kernel memory and subvert kernel     execution.(CVE-2016-9083)

  - The use of a kzalloc with an integer multiplication     allowed an integer overflow condition to be reached in     vfio_pci_intrs.c. This combined with CVE-2016-9083 may     allow an attacker to craft an attack and use     unallocated memory, potentially crashing the     machine.(CVE-2016-9084)

  - A flaw was found in the Linux kernel's implementation     of the SCTP protocol. A remote attacker could trigger     an out-of-bounds read with an offset of up to 64kB     potentially causing the system to crash.(CVE-2016-9555)

  - It was found that the blk_rq_map_user_iov() function in     the Linux kernel's block device implementation did not     properly restrict the type of iterator, which could     allow a local attacker to read or write to arbitrary     kernel memory locations or cause a denial of service     (use-after-free) by leveraging write access to a     /dev/sg device.(CVE-2016-9576)

  - Linux kernel built with the KVM visualization support     (CONFIG_KVM), with nested visualization(nVMX) feature     enabled(nested=1), is vulnerable to an uncaught     exception issue. It could occur if an L2 guest was to     throw an exception which is not handled by an L1     guest.(CVE-2016-9588)

  - It was discovered that root can gain direct access to     an internal keyring, such as '.dns_resolver' in RHEL-7     or '.builtin_trusted_keys' upstream, by joining it as     its session keyring. This allows root to bypass module     signature verification by adding a new public key of     its own devising to the keyring.(CVE-2016-9604)

  - A flaw was found in the Linux kernel's implementation     of XFS file attributes. Two memory leaks were detected     in xfs_attr_shortform_list and xfs_attr3_leaf_list_int     when running a docker container backed by xfs/overlay2.
    A dedicated attacker could possible exhaust all memory     and create a denial of service     situation.(CVE-2016-9685)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Oracle Linux host is missing a security update for the kernel package(s).

An update for kernel is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es) :

* It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (CVE-2017-7308, Important)

* Mounting a crafted EXT4 image read-only leads to an attacker controlled memory corruption and SLAB-Out-of-Bounds reads.
(CVE-2016-10208, Moderate)

* A flaw was found in the Linux kernel's implementation of seq_file where a local attacker could manipulate memory in the put() function pointer. This could lead to memory corruption and possible privileged escalation. (CVE-2016-7910, Moderate)

* A vulnerability was found in the Linux kernel. An unprivileged local user could trigger oops in shash_async_export() by attempting to force the in-kernel hashing algorithms into decrypting an empty data set.
(CVE-2016-8646, Moderate)

* It was reported that with Linux kernel, earlier than version v4.10-rc8, an application may trigger a BUG_ON in sctp_wait_for_sndbuf if the socket tx buffer is full, a thread is waiting on it to queue more data, and meanwhile another thread peels off the association being used by the first thread. (CVE-2017-5986, Moderate)

Red Hat would like to thank Igor Redko (Virtuozzo kernel team) for reporting CVE-2016-8646.

Additional Changes :

This update also fixes several bugs and adds various enhancements.
Documentation for these changes is available from the Technical Notes document linked to in the References section.

Note that Tenable Network Security has attempted to extract the preceding description block directly from the corresponding Red Hat security advisory. Virtuozzo provides no description for VZLSA advisories. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the version of the vzkernel package and the readykernel-patch installed, the Virtuozzo installation on the remote host is affected by the following vulnerabilities :

  - The tcp_v6_syn_recv_sock function in     net/ipv6/tcp_ipv6.c in the Linux kernel mishandles     inheritance, which allows local users to cause a denial     of service or possibly have unspecified other impact     via crafted system calls, a related issue to     CVE-2017-8890. An unprivileged local user could use     this flaw to induce kernel memory corruption on the     system, leading to a crash. Due to the nature of the     flaw, privilege escalation cannot be fully ruled out,     although we believe it is unlikely.

  - The IPv6 DCCP implementation in the Linux kernel     mishandles inheritance, which allows local users to     cause a denial of service or possibly have unspecified     other impact via crafted system calls, a related issue     to CVE-2017-8890. An unprivileged local user could use     this flaw to induce kernel memory corruption on the     system, leading to a crash. Due to the nature of the     flaw, privilege escalation cannot be fully ruled out,     although we believe it is unlikely.

  - The sctp_v6_create_accept_sk function in     net/sctp/ipv6.c in the Linux kernel mishandles     inheritance, which allows local users to cause a denial     of service or possibly have unspecified other impact     via crafted system calls, a related issue to     CVE-2017-8890. An unprivileged local user could use     this flaw to induce kernel memory corruption on the     system, leading to a crash. Due to the nature of the     flaw, privilege escalation cannot be fully ruled out,     although we believe it is unlikely.

  - The IPv6 fragmentation implementation in the Linux     kernel through 4.11.1 does not consider that the     nexthdr field may be associated with an invalid option,     which allows local users to cause a denial of service     (out-of-bounds read and BUG) or possibly have     unspecified other impact via crafted socket and send     system calls.

  - The inet_csk_clone_lock function in     net/ipv4/inet_connection_sock.c in the Linux kernel     allows attackers to cause a denial of service (double     free) or possibly have unspecified other impact by     leveraging use of the accept system call. An     unprivileged local user could use this flaw to induce     kernel memory corruption on the system, leading to a     crash. Due to the nature of the flaw, privilege     escalation cannot be fully ruled out, although we     believe it is unlikely.

  - A vulnerability was found in the Linux kernel. An     unprivileged local user could trigger oops in     shash_async_export() by attempting to force the     in-kernel hashing algorithms into decrypting an empty     data set.

Note that Tenable Network Security has extracted the preceding description block directly from the Virtuozzo security advisory.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the version of the vzkernel package and the readykernel-patch installed, the Virtuozzo installation on the remote host is affected by the following vulnerabilities :

  - The NFS2/3 RPC client could send long arguments to nfsd     server. These encoded arguments are stored in an array     of memory pages, and accessed via various pointer     variables. Arbitrarily long arguments could make these     pointers point outside the array, thus causing     out-of-bounds memory access. A remote user/program     could use this flaw to crash the kernel resulting in     DoS.

  - The NFSv2 and NFSv3 server implementations in the Linux     kernel through 4.10.13 lack certain checks for the end     of a buffer. A remote attacker could trigger a     pointer-arithmetic error or possibly have unspecified     other impact via crafted requests related to     fs/nfsd/nfs3xdr.c and fs/nfsd/nfsxdr.c.

  - The tcp_v6_syn_recv_sock function in     net/ipv6/tcp_ipv6.c in the Linux kernel mishandles     inheritance, which allows local users to cause a denial     of service or possibly have unspecified other impact     via crafted system calls, a related issue to     CVE-2017-8890. An unprivileged local user could use     this flaw to induce kernel memory corruption on the     system, leading to a crash. Due to the nature of the     flaw, privilege escalation cannot be fully ruled out,     although we believe it is unlikely.

  - The IPv6 DCCP implementation in the Linux kernel     mishandles inheritance, which allows local users to     cause a denial of service or possibly have unspecified     other impact via crafted system calls, a related issue     to CVE-2017-8890. An unprivileged local user could use     this flaw to induce kernel memory corruption on the     system, leading to a crash. Due to the nature of the     flaw, privilege escalation cannot be fully ruled out,     although we believe it is unlikely.

  - The sctp_v6_create_accept_sk function in     net/sctp/ipv6.c in the Linux kernel mishandles     inheritance, which allows local users to cause a denial     of service or possibly have unspecified other impact     via crafted system calls, a related issue to     CVE-2017-8890. An unprivileged local user could use     this flaw to induce kernel memory corruption on the     system, leading to a crash. Due to the nature of the     flaw, privilege escalation cannot be fully ruled out,     although we believe it is unlikely.

  - The IPv6 fragmentation implementation in the Linux     kernel through 4.11.1 does not consider that the     nexthdr field may be associated with an invalid option,     which allows local users to cause a denial of service     (out-of-bounds read and BUG) or possibly have     unspecified other impact via crafted socket and send     system calls.

  - The inet_csk_clone_lock function in     net/ipv4/inet_connection_sock.c in the Linux kernel     allows attackers to cause a denial of service (double     free) or possibly have unspecified other impact by     leveraging use of the accept system call. An     unprivileged local user could use this flaw to induce     kernel memory corruption on the system, leading to a     crash. Due to the nature of the flaw, privilege     escalation cannot be fully ruled out, although we     believe it is unlikely.

  - A vulnerability was found in the Linux kernel. An     unprivileged local user could trigger oops in     shash_async_export() by attempting to force the     in-kernel hashing algorithms into decrypting an empty     data set.

  - If the sctp module was loaded on the host, a privileged     user inside a container could cause a kernel crash by     triggering a NULL pointer dererefence in the     sctp_endpoint_destroy() function with a specially     crafted sequence of system calls.

  - A privileged user inside a container could cause a     kernel crash by triggering a BUG_ON in the     unregister_netdevice_many() function with a specially     crafted sequence of system calls.

Note that Tenable Network Security has extracted the preceding description block directly from the Virtuozzo security advisory.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-1308 advisory.

    - [net] packet: fix overflow in check for tp_reserve (Hangbin Liu) [1441171 1441172] {CVE-2017-7308}
    - [net] packet: fix overflow in check for tp_frame_nr (Hangbin Liu) [1441171 1441172] {CVE-2017-7308}
    - [net] packet: fix overflow in check for priv area size (Hangbin Liu) [1441171 1441172] {CVE-2017-7308}
    - [fs] ext4: fix fencepost in s_first_meta_bg validation (Lukas Czerner) [1430969 1332503]     {CVE-2016-10208}
    - [fs] ext4: sanity check the block and cluster size at mount time (Lukas Czerner) [1430969 1332503]     {CVE-2016-10208}
    - [fs] ext4: validate s_first_meta_bg at mount time (Lukas Czerner) [1430969 1332503] {CVE-2016-10208}
    - [net] sctp: deny peeloff operation on asocs with threads sleeping on it (Hangbin Liu) [1429496 1429497]     {CVE-2017-5986 CVE-2017-6353}
    - [net] sctp: avoid BUG_ON on sctp_wait_for_sndbuf (Hangbin Liu) [1429496 1429497] {CVE-2017-5986     CVE-2017-6353}
    - [block] fix use-after-free in seq file (Denys Vlasenko) [1418550 1418551] {CVE-2016-7910}
    - [crypto] algif_hash - Only export and import on sockets with data (Herbert Xu) [1394101 1387632]     {CVE-2016-8646}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Description of changes:

- [3.10.0-514.21.1.0.1.el7.OL7]
- [ipc] ipc/sem.c: bugfix for semctl(,,GETZCNT) (Manfred Spraul) [orabug 22552377]
- Oracle Linux certificates (Alexey Petrenko)
- Oracle Linux RHCK Module Signing Key was compiled into kernel (olkmod_signing_key.x509)(<A HREF='https://oss.oracle.com/mailman/listinfo/el-errata'>alexey.petrenko at oracle.com</A>)
- Update x509.genkey [bug 24817676]

[3.10.0-514.21.1.el7]
- [kernel] sched/core: Fix an SMP ordering race in try_to_wake_up() vs. schedule() (Gustavo Duarte) [1441547 1423400]
- [drivers] Set dev->device_rh to NULL after free (Prarit Bhargava) [1441544 1414064]
- [security] keys: request_key() should reget expired keys rather than give EKEYEXPIRED (David Howells) [1441287 1408330]
- [security] keys: Simplify KEYRING_SEARCH_{NO, DO}_STATE_CHECK flags (David Howells) [1441287 1408330]
- [net] packet: fix overflow in check for tp_reserve (Hangbin Liu) [1441171 1441172] {CVE-2017-7308}
- [net] packet: fix overflow in check for tp_frame_nr (Hangbin Liu) [1441171 1441172] {CVE-2017-7308}
- [net] packet: fix overflow in check for priv area size (Hangbin Liu) [1441171 1441172] {CVE-2017-7308}
- [powerpc] pseries: Use H_CLEAR_HPT to clear MMU hash table during kexec (Steve Best) [1439812 1423396]
- [netdrv] fjes: Fix wrong netdevice feature flags (Yasuaki Ishimatsu) [1439802 1435603]
- [kernel] mlx5e: Implement Fragmented Work Queue (WQ) (Don Dutile) [1439164 1368400]
- [netdrv] mlx5e: Copy all L2 headers into inline segment (Don Dutile) [1439161 1383013]
- [nvdimm] fix PHYS_PFN/PFN_PHYS mixup (Jeff Moyer) [1439160 1428115]
- [s390] scsi: zfcp: fix rport unblock race with LUN recovery (Hendrik Brueckner) [1433413 1421750]
- [fs] gfs2: Avoid alignment hole in struct lm_lockname (Robert S Peterson) [1432554 1425450]
- [fs] gfs2: Add missing rcu locking for glock lookup (Robert S Peterson) [1432554 1425450]
- [fs] ext4: fix fencepost in s_first_meta_bg validation (Lukas Czerner) [1430969 1332503] {CVE-2016-10208}
- [fs] ext4: sanity check the block and cluster size at mount time (Lukas Czerner) [1430969 1332503] {CVE-2016-10208}
- [fs] ext4: validate s_first_meta_bg at mount time (Lukas Czerner) [1430969 1332503] {CVE-2016-10208}
- [net] sctp: deny peeloff operation on asocs with threads sleeping on it (Hangbin Liu) [1429496 1429497] {CVE-2017-5986 CVE-2017-6353}
- [net] sctp: avoid BUG_ON on sctp_wait_for_sndbuf (Hangbin Liu) [1429496 1429497] {CVE-2017-5986 CVE-2017-6353}
- [x86] perf/x86/intel/rapl: Make package handling more robust (Jiri Olsa) [1443902 1418688]
- [x86] perf/x86/intel/rapl: Convert to hotplug state machine (Jiri Olsa) [1443902 1418688]
- [x86] perf/x86: Set pmu->module in Intel PMU modules (Jiri Olsa) [1443902 1418688]
- [kernel] sched/core, x86/topology: Fix NUMA in package topology bug (Jiri Olsa) [1441645 1369832]
- [kernel] sched: Allow hotplug notifiers to be setup early (Jiri Olsa) [1441645 1369832]
- [x86] x86/smpboot: Make logical package management more robust (Prarit Bhargava) [1441643 1414054]
- [x86] x86/cpu: Deal with broken firmware (VMWare/XEN) (Prarit Bhargava) [1441643 1414054]
- [x86] perf/x86/intel/uncore: Fix hardcoded socket 0 assumption in the Haswell init code (Prarit Bhargava) [1426633 1373738]
- [x86] revert 'perf/uncore: Disable uncore on kdump kernel' (Prarit Bhargava) [1426633 1373738]
- [x86] smpboot: Init apic mapping before usage (Prarit Bhargava) [1426633 1373738]
- [x86] smp: Don't try to poke disabled/non-existent APIC (Prarit Bhargava) [1426633 1373738]
- [x86] Handle non enumerated CPU after physical hotplug (Prarit Bhargava) [1426633 1373738]
- [block] fix use-after-free in seq file (Denys Vlasenko) [1418550 1418551] {CVE-2016-7910}
- [crypto] algif_hash - Only export and import on sockets with data (Herbert Xu) [1394101 1387632] {CVE-2016-8646}
- [char] hwrng: core - sleep interruptible in read (Amit Shah) [1443503 1376397]
- [char] hwrng: core - correct error check of kthread_run call (Amit Shah) [1443503 1376397]
- [char] hwrng: core - Move hwrng_init call into set_current_rng (Amit Shah) [1443503 1376397]
- [char] hwrng: core - Drop current rng in set_current_rng (Amit Shah) [1443503 1376397]
- [char] hwrng: core - Do not register device opportunistically (Amit Shah) [1443503 1376397]
- [char] hwrng: core - Fix current_rng init/cleanup race yet again (Amit Shah) [1443503 1376397]
- [char] hwrng: core - Use struct completion for cleanup_done (Amit Shah) [1443503 1376397]
- [char] hwrng: don't init list element we're about to add to list (Amit Shah) [1443503 1376397]
- [char] hwrng: don't double-check old_rng (Amit Shah) [1443503 1376397]
- [char] hwrng: fix unregister race (Amit Shah) [1443503 1376397]
- [char] hwrng: use reference counts on each struct hwrng (Amit Shah) [1443503 1376397]
- [char] hwrng: move some code out mutex_lock for avoiding underlying deadlock (Amit Shah) [1443503 1376397]
- [char] hwrng: place mutex around read functions and buffers (Amit Shah) [1443503 1376397]
- [char] virtio-rng: skip reading when we start to remove the device (Amit Shah) [1443503 1376397]
- [char] virtio-rng: fix stuck of hot-unplugging busy device (Amit Shah) [1443503 1376397]
- [infiniband] ib/mlx5: Resolve soft lock on massive reg MRs (Don Dutile) [1444347 1417285]

[3.10.0-514.20.1.el7]
- [powerpc] fadump: Fix the race in crash_fadump() (Steve Best) [1439810 1420077]
- [kernel] locking/mutex: Explicitly mark task as running after wakeup (Gustavo Duarte) [1439803 1423397]
- [netdrv] ixgbe: Force VLNCTRL.VFE to be set in all VMDq paths (Ken Cox) [1438421 1383524]
- [fs] nfsv4.0: always send mode in SETATTR after EXCLUSIVE4 (Benjamin Coddington) [1437967 1415780]
- [net] fix creation adjacent device symlinks (Adrian Reber) [1436646 1412898]
- [net] prevent of emerging cross-namespace symlinks (Adrian Reber) [1436646 1412898]
- [netdrv] macvlan: unregister net device when netdev_upper_dev_link() fails (Adrian Reber) [1436646 1412898]
- [scsi] vmw_pvscsi: return SUCCESS for successful command aborts (Ewan Milne) [1435764 1394172]
- [infiniband] ib/uverbs: Fix race between uverbs_close and remove_one (Don Dutile) [1435187 1417284]
- [fs] gfs2: Prevent BUG from occurring when normal Withdraws occur (Robert S Peterson) [1433882 1404005]
- [fs] jbd2: fix incorrect unlock on j_list_lock (Lukas Czerner) [1433881 1403346]
- [fs] xfs: don't wrap ID in xfs_dq_get_next_id (Eric Sandeen) [1433415 1418182]
- [net] tcp/dccp: avoid starving bh on connect (Paolo Abeni) [1433320 1401419]
- [fs] xfs: fix up xfs_swap_extent_forks inline extent handling (Eric Sandeen) [1432154 1412945]
- [x86] kvm: vmx: handle PML full VMEXIT that occurs during event delivery (Radim Krcmar) [1431666 1421296]
- [virt] kvm: vmx: ensure VMCS is current while enabling PML (Radim Krcmar) [1431666 1421296]
- [net] ip_tunnel: Create percpu gro_cell (Jiri Benc) [1431197 1424076]
- [x86] kvm: x86: do not save guest-unsupported XSAVE state (Radim Krcmar) [1431150 1401767]
- [scsi] mpt3sas: Force request partial completion alignment (Tomas Henzl) [1430809 1418286]

[3.10.0-514.19.1.el7]
- [fs] gfs2: Wake up io waiters whenever a flush is done (Robert S Peterson) [1437126 1404301]
- [fs] gfs2: Made logd daemon take into account log demand (Robert S Peterson) [1437126 1404301]
- [fs] gfs2: Limit number of transaction blocks requested for truncates (Robert S Peterson) [1437126 1404301]
- [net] ipv6: addrconf: fix dev refcont leak when DAD failed (Hangbin Liu) [1436588 1416105]

[3.10.0-514.18.1.el7]
- [net] ipv6: don't increase size when refragmenting forwarded ipv6 skbs (Florian Westphal) [1434589 1430571]
- [net] bridge: drop netfilter fake rtable unconditionally (Florian Westphal) [1434589 1430571]
- [net] ipv6: avoid write to a possibly cloned skb (Florian Westphal) [1434589 1430571]
- [net] netfilter: bridge: honor frag_max_size when refragmenting (Florian Westphal) [1434589 1430571]
- [net] bridge: Add br_netif_receive_skb remove netif_receive_skb_sk (Ivan Vecera) [1434589 1352289]

[3.10.0-514.17.1.el7]
- [netdrv] i40e: Be much more verbose about what we can and cannot offload (Stefan Assmann) [1433273 1383521]
- [kernel] watchdog: prevent false hardlockup on overloaded system (Don Zickus) [1433267 1399881]
- [net] dccp/tcp: fix routing redirect race (Eric Garver) [1433265 1387485]

Security Fix(es) :

  - It was found that the packet_set_ring() function of the     Linux kernel's networking implementation did not     properly validate certain block-size data. A local     attacker with CAP_NET_RAW capability could use this flaw     to trigger a buffer overflow, resulting in the crash of     the system. Due to the nature of the flaw, privilege     escalation cannot be fully ruled out. (CVE-2017-7308,     Important)

  - Mounting a crafted EXT4 image read-only leads to an     attacker controlled memory corruption and     SLAB-Out-of-Bounds reads. (CVE-2016-10208, Moderate)

  - A flaw was found in the Linux kernel's implementation of     seq_file where a local attacker could manipulate memory     in the put() function pointer. This could lead to memory     corruption and possible privileged escalation.
    (CVE-2016-7910, Moderate)

  - A vulnerability was found in the Linux kernel. An     unprivileged local user could trigger oops in     shash_async_export() by attempting to force the     in-kernel hashing algorithms into decrypting an empty     data set. (CVE-2016-8646, Moderate)

  - It was reported that with Linux kernel, earlier than     version v4.10-rc8, an application may trigger a BUG_ON     in sctp_wait_for_sndbuf if the socket tx buffer is full,     a thread is waiting on it to queue more data, and     meanwhile another thread peels off the association being     used by the first thread. (CVE-2017-5986, Moderate)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:1308 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not     properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this     flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw,     privilege escalation cannot be fully ruled out. (CVE-2017-7308, Important)

    * Mounting a crafted EXT4 image read-only leads to an attacker controlled memory corruption and SLAB-Out-     of-Bounds reads. (CVE-2016-10208, Moderate)

    * A flaw was found in the Linux kernel's implementation of seq_file where a local attacker could     manipulate memory in the put() function pointer. This could lead to memory corruption and possible     privileged escalation. (CVE-2016-7910, Moderate)

    * A vulnerability was found in the Linux kernel. An unprivileged local user could trigger oops in     shash_async_export() by attempting to force the in-kernel hashing algorithms into decrypting an empty data     set. (CVE-2016-8646, Moderate)

    * It was reported that with Linux kernel, earlier than version v4.10-rc8, an application may trigger a     BUG_ON in sctp_wait_for_sndbuf if the socket tx buffer is full, a thread is waiting on it to queue more     data, and meanwhile another thread peels off the association being used by the first thread.
    (CVE-2017-5986, Moderate)

    Red Hat would like to thank Igor Redko (Virtuozzo kernel team) for reporting CVE-2016-8646.

    Additional Changes:

    This update also fixes several bugs and adds various enhancements. Documentation for these changes is     available from the Technical Notes document linked to in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update for kernel-rt is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es) :

* It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (CVE-2017-7308, Important)

* Mounting a crafted EXT4 image read-only leads to an attacker controlled memory corruption and SLAB-Out-of-Bounds reads.
(CVE-2016-10208, Moderate)

* A flaw was found in the Linux kernel's implementation of seq_file where a local attacker could manipulate memory in the put() function pointer. This could lead to memory corruption and possible privileged escalation. (CVE-2016-7910, Moderate)

* A vulnerability was found in the Linux kernel. An unprivileged local user could trigger oops in shash_async_export() by attempting to force the in-kernel hashing algorithms into decrypting an empty data set.
(CVE-2016-8646, Moderate)

Red Hat would like to thank Igor Redko (Virtuozzo kernel team) for reporting CVE-2016-8646.

Bug Fix(es) :

* The kernel-rt packages have been upgraded to the 3.10.0-514.21.1 source tree, which provides a number of bug fixes over the previous version. (BZ# 1440803)

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:1297 advisory.

    The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with     extremely high determinism requirements.

    Security Fix(es):

    * It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not     properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this     flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw,     privilege escalation cannot be fully ruled out. (CVE-2017-7308, Important)

    * Mounting a crafted EXT4 image read-only leads to an attacker controlled memory corruption and SLAB-Out-     of-Bounds reads. (CVE-2016-10208, Moderate)

    * A flaw was found in the Linux kernel's implementation of seq_file where a local attacker could     manipulate memory in the put() function pointer. This could lead to memory corruption and possible     privileged escalation. (CVE-2016-7910, Moderate)

    * A vulnerability was found in the Linux kernel. An unprivileged local user could trigger oops in     shash_async_export() by attempting to force the in-kernel hashing algorithms into decrypting an empty data     set. (CVE-2016-8646, Moderate)

    Red Hat would like to thank Igor Redko (Virtuozzo kernel team) for reporting CVE-2016-8646.

    Bug Fix(es):

    * The kernel-rt packages have been upgraded to the 3.10.0-514 source tree, which provides a number of bug     fixes over the previous version. (BZ#1440807)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update for kernel is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es) :

* It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (CVE-2017-7308, Important)

* Mounting a crafted EXT4 image read-only leads to an attacker controlled memory corruption and SLAB-Out-of-Bounds reads.
(CVE-2016-10208, Moderate)

* A flaw was found in the Linux kernel's implementation of seq_file where a local attacker could manipulate memory in the put() function pointer. This could lead to memory corruption and possible privileged escalation. (CVE-2016-7910, Moderate)

* A vulnerability was found in the Linux kernel. An unprivileged local user could trigger oops in shash_async_export() by attempting to force the in-kernel hashing algorithms into decrypting an empty data set.
(CVE-2016-8646, Moderate)

* It was reported that with Linux kernel, earlier than version v4.10-rc8, an application may trigger a BUG_ON in sctp_wait_for_sndbuf if the socket tx buffer is full, a thread is waiting on it to queue more data, and meanwhile another thread peels off the association being used by the first thread. (CVE-2017-5986, Moderate)

Red Hat would like to thank Igor Redko (Virtuozzo kernel team) for reporting CVE-2016-8646.

Additional Changes :

This update also fixes several bugs and adds various enhancements.
Documentation for these changes is available from the Technical Notes document linked to in the References section.

The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2017-0057 for details.

The SUSE Linux Enterprise 11 SP3 LTSS kernel was updated to receive various security and bugfixes. The following security bugs were fixed :

  - CVE-2015-8970: crypto/algif_skcipher.c in the Linux     kernel did not verify that a setkey operation has been     performed on an AF_ALG socket before an accept system     call is processed, which allowed local users to cause a     denial of service (NULL pointer dereference and system     crash) via a crafted application that did not supply a     key, related to the lrw_crypt function in crypto/lrw.c     (bnc#1008374).

  - CVE-2017-5551: Clear S_ISGID on tmpfs when setting posix     ACLs (bsc#1021258).

  - CVE-2016-7097: The filesystem implementation in the     Linux kernel preserves the setgid bit during a setxattr     call, which allowed local users to gain group privileges     by leveraging the existence of a setgid program with     restrictions on execute permissions (bnc#995968).

  - CVE-2016-10088: The sg implementation in the Linux     kernel did not properly restrict write operations in     situations where the KERNEL_DS option is set, which     allowed local users to read or write to arbitrary kernel     memory locations or cause a denial of service     (use-after-free) by leveraging access to a /dev/sg     device, related to block/bsg.c and drivers/scsi/sg.c.
    NOTE: this vulnerability exists because of an incomplete     fix for CVE-2016-9576 (bnc#1017710).

  - CVE-2004-0230: TCP, when using a large Window Size, made     it easier for remote attackers to guess sequence numbers     and cause a denial of service (connection loss) to     persistent TCP connections by repeatedly injecting a TCP     RST packet, especially in protocols that use long-lived     connections, such as BGP (bnc#969340).

  - CVE-2016-8632: The tipc_msg_build function in     net/tipc/msg.c in the Linux kernel did not validate the     relationship between the minimum fragment length and the     maximum packet size, which allowed local users to gain     privileges or cause a denial of service (heap-based     buffer overflow) by leveraging the CAP_NET_ADMIN     capability (bnc#1008831).

  - CVE-2016-8399: An elevation of privilege vulnerability     in the kernel networking subsystem could have enabled a     local malicious application to execute arbitrary code     within the context of the kernel bnc#1014746).

  - CVE-2016-9793: The sock_setsockopt function in     net/core/sock.c in the Linux kernel mishandled negative     values of sk_sndbuf and sk_rcvbuf, which allowed local     users to cause a denial of service (memory corruption     and system crash) or possibly have unspecified other     impact by leveraging the CAP_NET_ADMIN capability for a     crafted setsockopt system call with the (1)     SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option     (bnc#1013531).

  - CVE-2012-6704: The sock_setsockopt function in     net/core/sock.c in the Linux kernel mishandled negative     values of sk_sndbuf and sk_rcvbuf, which allowed local     users to cause a denial of service (memory corruption     and system crash) or possibly have unspecified other     impact by leveraging the CAP_NET_ADMIN capability for a     crafted setsockopt system call with the (1) SO_SNDBUF or     (2) SO_RCVBUF option (bnc#1013542).

  - CVE-2016-9756: arch/x86/kvm/emulate.c in the Linux     kernel did not properly initialize Code Segment (CS) in     certain error cases, which allowed local users to obtain     sensitive information from kernel stack memory via a     crafted application (bnc#1013038).

  - CVE-2016-3841: The IPv6 stack in the Linux kernel     mishandled options data, which allowed local users to     gain privileges or cause a denial of service     (use-after-free and system crash) via a crafted sendmsg     system call (bnc#992566).

  - CVE-2016-9685: Multiple memory leaks in error paths in     fs/xfs/xfs_attr_list.c in the Linux kernel allowed local     users to cause a denial of service (memory consumption)     via crafted XFS filesystem operations (bnc#1012832).

  - CVE-2015-1350: The VFS subsystem in the Linux kernel     provided an incomplete set of requirements for setattr     operations that underspecifies removing extended     privilege attributes, which allowed local users to cause     a denial of service (capability stripping) via a failed     invocation of a system call, as demonstrated by using     chown to remove a capability from the ping or Wireshark     dumpcap program (bnc#914939).

  - CVE-2015-8962: Double free vulnerability in the     sg_common_write function in drivers/scsi/sg.c in the     Linux kernel allowed local users to gain privileges or     cause a denial of service (memory corruption and system     crash) by detaching a device during an SG_IO ioctl call     (bnc#1010501).

  - CVE-2016-9555: The sctp_sf_ootb function in     net/sctp/sm_statefuns.c in the Linux kernel lacked     chunk-length checking for the first chunk, which allowed     remote attackers to cause a denial of service     (out-of-bounds slab access) or possibly have unspecified     other impact via crafted SCTP data (bnc#1011685).

  - CVE-2016-7910: Use-after-free vulnerability in the     disk_seqf_stop function in block/genhd.c in the Linux     kernel allowed local users to gain privileges by     leveraging the execution of a certain stop operation     even if the corresponding start operation had failed     (bnc#1010716).

  - CVE-2016-7911: Race condition in the get_task_ioprio     function in block/ioprio.c in the Linux kernel allowed     local users to gain privileges or cause a denial of     service (use-after-free) via a crafted ioprio_get system     call (bnc#1010711).

  - CVE-2015-8964: The tty_set_termios_ldisc function in     drivers/tty/tty_ldisc.c in the Linux kernel allowed     local users to obtain sensitive information from kernel     memory by reading a tty data structure (bnc#1010507).

  - CVE-2016-7916: Race condition in the environ_read     function in fs/proc/base.c in the Linux kernel allowed     local users to obtain sensitive information from kernel     memory by reading a /proc/*/environ file during a     process-setup time interval in which     environment-variable copying is incomplete     (bnc#1010467).

  - CVE-2016-8646: The hash_accept function in     crypto/algif_hash.c in the Linux kernel allowed local     users to cause a denial of service (OOPS) by attempting     to trigger use of in-kernel hash algorithms for a socket     that has received zero bytes of data (bnc#1010150).

  - CVE-2016-8633: drivers/firewire/net.c in the Linux     kernel in certain unusual hardware configurations     allowed remote attackers to execute arbitrary code via     crafted fragmented packets (bnc#1008833).

  - CVE-2016-7042: The proc_keys_show function in     security/keys/proc.c in the Linux, when the GNU Compiler     Collection (gcc) stack protector is enabled, used an     incorrect buffer size for certain timeout data, which     allowed local users to cause a denial of service (stack     memory corruption and panic) by reading the /proc/keys     file (bnc#1004517).

  - CVE-2015-8956: The rfcomm_sock_bind function in     net/bluetooth/rfcomm/sock.c in the Linux kernel allowed     local users to obtain sensitive information or cause a     denial of service (NULL pointer dereference) via vectors     involving a bind system call on a Bluetooth RFCOMM     socket (bnc#1003925).

  - CVE-2016-7117: Use-after-free vulnerability in the
    __sys_recvmmsg function in net/socket.c in the Linux     kernel allowed remote attackers to execute arbitrary     code via vectors involving a recvmmsg system call that     is mishandled during error processing (bnc#1003077).

  - CVE-2016-0823: The pagemap_open function in     fs/proc/task_mmu.c in the Linux kernel allowed local     users to obtain sensitive physical-address information     by reading a pagemap file (bnc#994759).

  - CVE-2016-7425: The arcmsr_iop_message_xfer function in     drivers/scsi/arcmsr/arcmsr_hba.c in the Linux kernel did     not restrict a certain length field, which allowed local     users to gain privileges or cause a denial of service     (heap-based buffer overflow) via an     ARCMSR_MESSAGE_WRITE_WQBUFFER control code (bnc#999932).

  - CVE-2016-6828: The tcp_check_send_head function in     include/net/tcp.h in the Linux kernel did not properly     maintain certain SACK state after a failed data copy,     which allowed local users to cause a denial of service     (tcp_xmit_retransmit_queue use-after-free and system     crash) via a crafted SACK option (bnc#994296).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote OracleVM system is missing necessary patches to address critical security updates :

  - crypto: algif_hash - Only export and import on sockets     with data (Herbert Xu) [Orabug: 25417805]     (CVE-2016-8646)

  - USB: usbfs: fix potential infoleak in devio (Kangjie Lu)     [Orabug: 25462760] (CVE-2016-4482)

  - net: fix infoleak in llc (Kangjie Lu) [Orabug: 25462807]     (CVE-2016-4485)

  - af_unix: Guard against other == sk in unix_dgram_sendmsg     (Rainer Weikusat) [Orabug: 25463996] (CVE-2013-7446)

  - unix: avoid use-after-free in ep_remove_wait_queue     (Rainer Weikusat) [Orabug: 25463996] (CVE-2013-7446)

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-3516 advisory.

    - vfs: read file_handle only once in handle_to_path (Sasha Levin)  [Orabug: 25388709]  {CVE-2015-1420}
    - USB: usbfs: fix potential infoleak in devio (Kangjie Lu)  [Orabug: 25462763]  {CVE-2016-4482}
    - net: fix infoleak in llc (Kangjie Lu)  [Orabug: 25462811]  {CVE-2016-4485}
    - af_unix: Guard against other == sk in unix_dgram_sendmsg (Rainer Weikusat)  [Orabug: 25464000]     {CVE-2013-7446}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-3515 advisory.

    - crypto: algif_hash - Only export and import on sockets with data (Herbert Xu)  [Orabug: 25417805]     {CVE-2016-8646}
    - USB: usbfs: fix potential infoleak in devio (Kangjie Lu)  [Orabug: 25462760]  {CVE-2016-4482}
    - net: fix infoleak in llc (Kangjie Lu)  [Orabug: 25462807]  {CVE-2016-4485}
    - af_unix: Guard against other == sk in unix_dgram_sendmsg (Rainer Weikusat)  [Orabug: 25463996]     {CVE-2013-7446}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The SUSE Linux Enterprise 11 SP4 kernel was updated to 3.0.101-94 to receive various security and bugfixes. The following security bugs were fixed :

  - CVE-2017-5551: tmpfs: clear S_ISGID when setting posix     ACLs (bsc#1021258).

  - CVE-2016-10088: The sg implementation in the Linux     kernel did not properly restrict write operations in     situations where the KERNEL_DS option is set, which     allowed local users to read or write to arbitrary kernel     memory locations or cause a denial of service     (use-after-free) by leveraging access to a /dev/sg     device NOTE: this vulnerability existed because of an     incomplete fix for CVE-2016-9576 (bnc#1017710).

  - CVE-2016-5696: TCP, when using a large Window Size, made     it easier for remote attackers to guess sequence numbers     and cause a denial of service (connection loss) to     persistent TCP connections by repeatedly injecting a TCP     RST packet, especially in protocols that use long-lived     connections, such as BGP (bnc#989152).

  - CVE-2015-1350: The VFS subsystem in the Linux kernel 3.x     provided an incomplete set of requirements for setattr     operations that underspecified removing extended     privilege attributes, which allowed local users to cause     a denial of service (capability stripping) via a failed     invocation of a system call, as demonstrated by using     chown to remove a capability from the ping or Wireshark     dumpcap program (bnc#914939).

  - CVE-2016-8632: The tipc_msg_build function in     net/tipc/msg.c in the Linux kernel did not validate the     relationship between the minimum fragment length and the     maximum packet size, which allowed local users to gain     privileges or cause a denial of service (heap-based     buffer overflow) by leveraging the CAP_NET_ADMIN     capability (bnc#1008831).

  - CVE-2016-8399: An elevation of privilege vulnerability     in the kernel networking subsystem could enable a local     malicious application to execute arbitrary code within     the context of the kernel. This issue is rated as     Moderate because it first requires compromising a     privileged process and current compiler optimizations     restrict access to the vulnerable code. (bnc#1014746).

  - CVE-2016-9793: The sock_setsockopt function in     net/core/sock.c in the Linux kernel mishandled negative     values of sk_sndbuf and sk_rcvbuf, which allowed local     users to cause a denial of service (memory corruption     and system crash) or possibly have unspecified other     impact by leveraging the CAP_NET_ADMIN capability for a     crafted setsockopt system call with the (1)     SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option     (bnc#1013531).

  - CVE-2012-6704: The sock_setsockopt function in     net/core/sock.c in the Linux kernel mishandled negative     values of sk_sndbuf and sk_rcvbuf, which allowed local     users to cause a denial of service (memory corruption     and system crash) or possibly have unspecified other     impact by leveraging the CAP_NET_ADMIN capability for a     crafted setsockopt system call with the (1) SO_SNDBUF or     (2) SO_RCVBUF option (bnc#1013542).

  - CVE-2016-9756: arch/x86/kvm/emulate.c in the Linux     kernel did not properly initialize Code Segment (CS) in     certain error cases, which allowed local users to obtain     sensitive information from kernel stack memory via a     crafted application (bnc#1013038).

  - CVE-2016-9685: Multiple memory leaks in error paths in     fs/xfs/xfs_attr_list.c in the Linux kernel allowed local     users to cause a denial of service (memory consumption)     via crafted XFS filesystem operations (bnc#1012832).

  - CVE-2015-8962: Double free vulnerability in the     sg_common_write function in drivers/scsi/sg.c in the     Linux kernel allowed local users to gain privileges or     cause a denial of service (memory corruption and system     crash) by detaching a device during an SG_IO ioctl call     (bnc#1010501).

  - CVE-2016-9555: The sctp_sf_ootb function in     net/sctp/sm_statefuns.c in the Linux kernel lacked     chunk-length checking for the first chunk, which allowed     remote attackers to cause a denial of service     (out-of-bounds slab access) or possibly have unspecified     other impact via crafted SCTP data (bnc#1011685).

  - CVE-2016-7910: Use-after-free vulnerability in the     disk_seqf_stop function in block/genhd.c in the Linux     kernel allowed local users to gain privileges by     leveraging the execution of a certain stop operation     even if the corresponding start operation had failed     (bnc#1010716).

  - CVE-2016-7911: Race condition in the get_task_ioprio     function in block/ioprio.c in the Linux kernel allowed     local users to gain privileges or cause a denial of     service (use-after-free) via a crafted ioprio_get system     call (bnc#1010711).

  - CVE-2013-6368: The KVM subsystem in the Linux kernel     allowed local users to gain privileges or cause a denial     of service (system crash) via a VAPIC synchronization     operation involving a page-end address (bnc#853052).

  - CVE-2015-8964: The tty_set_termios_ldisc function in     drivers/tty/tty_ldisc.c in the Linux kernel allowed     local users to obtain sensitive information from kernel     memory by reading a tty data structure (bnc#1010507).

  - CVE-2016-7916: Race condition in the environ_read     function in fs/proc/base.c in the Linux kernel allowed     local users to obtain sensitive information from kernel     memory by reading a /proc/*/environ file during a     process-setup time interval in which     environment-variable copying is incomplete     (bnc#1010467).

  - CVE-2016-8646: The hash_accept function in     crypto/algif_hash.c in the Linux kernel allowed local     users to cause a denial of service (OOPS) by attempting     to trigger use of in-kernel hash algorithms for a socket     that has received zero bytes of data (bnc#1010150).

  - CVE-2016-8633: drivers/firewire/net.c in the Linux     kernel, in certain unusual hardware configurations,     allowed remote attackers to execute arbitrary code via     crafted fragmented packets (bnc#1008833).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote OracleVM system is missing necessary patches to address critical security updates :

  - vfio/pci: Fix integer overflows, bitmask check (Vlad     Tsyrklevich) [Orabug: 25164094] (CVE-2016-9083)     (CVE-2016-9084)

  - Don't feed anything but regular iovec's to     blk_rq_map_user_iov (Linus Torvalds) [Orabug: 25231931]     (CVE-2016-9576)

  - kvm: x86: Check memopp before dereference     (CVE-2016-8630) (Owen Hofmann) [Orabug: 25417387]     (CVE-2016-8630)

  - crypto: algif_hash - Only export and import on sockets     with data (Herbert Xu) [Orabug: 25417799]     (CVE-2016-8646)

  - USB: usbfs: fix potential infoleak in devio (Kangjie Lu)     [Orabug: 25462755] (CVE-2016-4482)

  - net: fix infoleak in llc (Kangjie Lu) [Orabug: 25462799]     (CVE-2016-4485)

  - xen-netback: fix extra_info handling in xenvif_tx_err     (Paul Durrant) [Orabug: 25445336]

  - net: Documentation: Fix default value     tcp_limit_output_bytes (Niklas Cassel) [Orabug:
    25458076]

  - tcp: double default TSQ output bytes limit (Wei Liu)     [Orabug: 25458076]

  - xenbus: fix deadlock on writes to /proc/xen/xenbus     (David Vrabel)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-3514 advisory.

    - vfio/pci: Fix integer overflows, bitmask check (Vlad Tsyrklevich)  [Orabug: 25164094]  {CVE-2016-9083}     {CVE-2016-9084}
    - Don't feed anything but regular iovec's to blk_rq_map_user_iov (Linus Torvalds)  [Orabug: 25231931]     {CVE-2016-9576}
    - kvm: x86: Check memopp before dereference (CVE-2016-8630) (Owen Hofmann)  [Orabug: 25417387]     {CVE-2016-8630}
    - crypto: algif_hash - Only export and import on sockets with data (Herbert Xu)  [Orabug: 25417799]     {CVE-2016-8646}
    - USB: usbfs: fix potential infoleak in devio (Kangjie Lu)  [Orabug: 25462755]  {CVE-2016-4482}
    - net: fix infoleak in llc (Kangjie Lu)  [Orabug: 25462799]  {CVE-2016-4485}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The SUSE Linux Enterprise 11 SP2 LTSS kernel was updated to receive various security and bugfixes. This is the last planned LTSS kernel update for the SUSE Linux Enterprise Server 11 SP2 LTSS. The following security bugs were fixed :

  - CVE-2016-10088: The sg implementation in the Linux     kernel did not properly restrict write operations in     situations where the KERNEL_DS option is set, which     allowed local users to read or write to arbitrary kernel     memory locations or cause a denial of service     (use-after-free) by leveraging access to a /dev/sg     device, related to block/bsg.c and drivers/scsi/sg.c.
    NOTE: this vulnerability exists because of an incomplete     fix for CVE-2016-9576 (bnc#1017710).

  - CVE-2004-0230: TCP, when using a large Window Size, made     it easier for remote attackers to guess sequence numbers     and cause a denial of service (connection loss) to     persistent TCP connections by repeatedly injecting a TCP     RST packet, especially in protocols that use long-lived     connections, such as BGP (bnc#969340).

  - CVE-2016-8632: The tipc_msg_build function in     net/tipc/msg.c in the Linux kernel did not validate the     relationship between the minimum fragment length and the     maximum packet size, which allowed local users to gain     privileges or cause a denial of service (heap-based     buffer overflow) by leveraging the CAP_NET_ADMIN     capability (bnc#1008831).

  - CVE-2016-8399: An out of bounds read in the ping     protocol handler could have lead to information     disclosure (bsc#1014746).

  - CVE-2016-9793: The sock_setsockopt function in     net/core/sock.c in the Linux kernel mishandled negative     values of sk_sndbuf and sk_rcvbuf, which allowed local     users to cause a denial of service (memory corruption     and system crash) or possibly have unspecified other     impact by leveraging the CAP_NET_ADMIN capability for a     crafted setsockopt system call with the (1)     SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option     (bnc#1013531).

  - CVE-2012-6704: The sock_setsockopt function in     net/core/sock.c in the Linux kernel mishandled negative     values of sk_sndbuf and sk_rcvbuf, which allowed local     users to cause a denial of service (memory corruption     and system crash) or possibly have unspecified other     impact by leveraging the CAP_NET_ADMIN capability for a     crafted setsockopt system call with the (1) SO_SNDBUF or     (2) SO_RCVBUF option (bnc#1013542).

  - CVE-2016-9756: arch/x86/kvm/emulate.c in the Linux     kernel did not properly initialize Code Segment (CS) in     certain error cases, which allowed local users to obtain     sensitive information from kernel stack memory via a     crafted application (bnc#1013038).

  - CVE-2016-3841: The IPv6 stack in the Linux kernel     mishandled options data, which allowed local users to     gain privileges or cause a denial of service     (use-after-free and system crash) via a crafted sendmsg     system call (bnc#992566).

  - CVE-2016-9685: Multiple memory leaks in error paths in     fs/xfs/xfs_attr_list.c in the Linux kernel allowed local     users to cause a denial of service (memory consumption)     via crafted XFS filesystem operations (bnc#1012832).

  - CVE-2015-1350: The VFS subsystem in the Linux kernel 3.x     provides an incomplete set of requirements for setattr     operations that underspecified removing extended     privilege attributes, which allowed local users to cause     a denial of service (capability stripping) via a failed     invocation of a system call, as demonstrated by using     chown to remove a capability from the ping or Wireshark     dumpcap program (bnc#914939).

  - CVE-2015-8962: Double free vulnerability in the     sg_common_write function in drivers/scsi/sg.c in the     Linux kernel allowed local users to gain privileges or     cause a denial of service (memory corruption and system     crash) by detaching a device during an SG_IO ioctl call     (bnc#1010501).

  - CVE-2016-9555: The sctp_sf_ootb function in     net/sctp/sm_statefuns.c in the Linux kernel lacked     chunk-length checking for the first chunk, which allowed     remote attackers to cause a denial of service     (out-of-bounds slab access) or possibly have unspecified     other impact via crafted SCTP data (bnc#1011685).

  - CVE-2016-7910: Use-after-free vulnerability in the     disk_seqf_stop function in block/genhd.c in the Linux     kernel allowed local users to gain privileges by     leveraging the execution of a certain stop operation     even if the corresponding start operation had failed     (bnc#1010716).

  - CVE-2016-7911: Race condition in the get_task_ioprio     function in block/ioprio.c in the Linux kernel allowed     local users to gain privileges or cause a denial of     service (use-after-free) via a crafted ioprio_get system     call (bnc#1010711).

  - CVE-2015-8964: The tty_set_termios_ldisc function in     drivers/tty/tty_ldisc.c in the Linux kernel allowed     local users to obtain sensitive information from kernel     memory by reading a tty data structure (bnc#1010507).

  - CVE-2016-7916: Race condition in the environ_read     function in fs/proc/base.c in the Linux kernel allowed     local users to obtain sensitive information from kernel     memory by reading a /proc/*/environ file during a     process-setup time interval in which     environment-variable copying is incomplete     (bnc#1010467).

  - CVE-2016-8646: The hash_accept function in     crypto/algif_hash.c in the Linux kernel allowed local     users to cause a denial of service (OOPS) by attempting     to trigger use of in-kernel hash algorithms for a socket     that has received zero bytes of data (bnc#1010150).

  - CVE-2016-8633: drivers/firewire/net.c in the Linux     kernel before 4.8.7, in certain unusual hardware     configurations, allowed remote attackers to execute     arbitrary code via crafted fragmented packets     (bnc#1008833).

  - CVE-2016-7042: The proc_keys_show function in     security/keys/proc.c in the Linux kernel used an     incorrect buffer size for certain timeout data, which     allowed local users to cause a denial of service (stack     memory corruption and panic) by reading the /proc/keys     file (bnc#1004517).

  - CVE-2016-7097: The filesystem implementation in the     Linux kernel preserves the setgid bit during a setxattr     call, which allowed local users to gain group privileges     by leveraging the existence of a setgid program with     restrictions on execute permissions (bnc#995968).

  - CVE-2017-5551: The filesystem implementation in the     Linux kernel preserves the setgid bit during a setxattr     call, which allowed local users to gain group privileges     by leveraging the existence of a setgid program with     restrictions on execute permissions. This CVE tracks the     fix for the tmpfs filesystem. (bsc#1021258).

  - CVE-2015-8956: The rfcomm_sock_bind function in     net/bluetooth/rfcomm/sock.c in the Linux kernel allowed     local users to obtain sensitive information or cause a     denial of service (NULL pointer dereference) via vectors     involving a bind system call on a Bluetooth RFCOMM     socket (bnc#1003925).

  - CVE-2016-7117: Use-after-free vulnerability in the
    __sys_recvmmsg function in net/socket.c in the Linux     kernel allowed remote attackers to execute arbitrary     code via vectors involving a recvmmsg system call that     is mishandled during error processing (bnc#1003077).

  - CVE-2016-0823: The pagemap_open function in     fs/proc/task_mmu.c in the Linux kernel allowed local     users to obtain sensitive physical-address information     by reading a pagemap file, aka Android internal bug     25739721 (bnc#994759).

  - CVE-2016-7425: The arcmsr_iop_message_xfer function in     drivers/scsi/arcmsr/arcmsr_hba.c in the Linux kernel did     not restrict a certain length field, which allowed local     users to gain privileges or cause a denial of service     (heap-based buffer overflow) via an     ARCMSR_MESSAGE_WRITE_WQBUFFER control code (bnc#999932).

  - CVE-2016-6828: The tcp_check_send_head function in     include/net/tcp.h in the Linux kernel did not properly     maintain certain SACK state after a failed data copy,     which allowed local users to cause a denial of service     (tcp_xmit_retransmit_queue use-after-free and system     crash) via a crafted SACK option (bnc#994296).

  - CVE-2016-6480: Race condition in the ioctl_send_fib     function in drivers/scsi/aacraid/commctrl.c in the Linux     kernel allowed local users to cause a denial of service     (out-of-bounds access or system crash) by changing a     certain size value, aka a 'double fetch' vulnerability     (bnc#991608).

  - CVE-2016-4998: The IPT_SO_SET_REPLACE setsockopt     implementation in the netfilter subsystem in the Linux     kernel allowed local users to cause a denial of service     (out-of-bounds read) or possibly obtain sensitive     information from kernel heap memory by leveraging     in-container root access to provide a crafted offset     value that leads to crossing a ruleset blob boundary     (bsc#986365).

  - CVE-2015-7513: arch/x86/kvm/x86.c in the Linux kernel     did not reset the PIT counter values during state     restoration, which allowed guest OS users to cause a     denial of service (divide-by-zero error and host OS     crash) via a zero value, related to the     kvm_vm_ioctl_set_pit and kvm_vm_ioctl_set_pit2 functions     (bnc#960689).

  - CVE-2013-4312: The Linux kernel allowed local users to     bypass file-descriptor limits and cause a denial of     service (memory consumption) by sending each descriptor     over a UNIX socket before closing it, related to     net/unix/af_unix.c and net/unix/garbage.c (bnc#839104).

  - CVE-2016-4997: The compat IPT_SO_SET_REPLACE and     IP6T_SO_SET_REPLACE setsockopt implementations in the     netfilter subsystem in the Linux kernel allow local     users to gain privileges or cause a denial of service     (memory corruption) by leveraging in-container root     access to provide a crafted offset value that triggers     an unintended decrement (bnc#986362).

  - CVE-2016-5829: Multiple heap-based buffer overflows in     the hiddev_ioctl_usage function in     drivers/hid/usbhid/hiddev.c in the Linux kernel allow     local users to cause a denial of service or possibly     have unspecified other impact via a crafted (1)     HIDIOCGUSAGES or (2) HIDIOCSUSAGES ioctl call     (bnc#986572).

  - CVE-2016-4470: The key_reject_and_link function in     security/keys/key.c in the Linux kernel did not ensure     that a certain data structure is initialized, which     allowed local users to cause a denial of service (system     crash) via vectors involving a crafted keyctl request2     command (bnc#984755).

  - CVE-2016-5244: The rds_inc_info_copy function in     net/rds/recv.c in the Linux kernel did not initialize a     certain structure member, which allowed remote attackers     to obtain sensitive information from kernel stack memory     by reading an RDS message (bnc#983213).

  - CVE-2016-1583: The ecryptfs_privileged_open function in     fs/ecryptfs/kthread.c in the Linux kernel allowed local     users to gain privileges or cause a denial of service     (stack memory consumption) via vectors involving crafted     mmap calls for /proc pathnames, leading to recursive     pagefault handling (bnc#983143).

  - CVE-2016-4913: The get_rock_ridge_filename function in     fs/isofs/rock.c in the Linux kernel mishandled NM (aka     alternate name) entries containing \0 characters, which     allowed local users to obtain sensitive information from     kernel memory or possibly have unspecified other impact     via a crafted isofs filesystem (bnc#980725).

  - CVE-2016-4580: The x25_negotiate_facilities function in     net/x25/x25_facilities.c in the Linux kernel did not     properly initialize a certain data structure, which     allowed attackers to obtain sensitive information from     kernel stack memory via an X.25 Call Request     (bnc#981267).

  - CVE-2016-4805: Use-after-free vulnerability in     drivers/net/ppp/ppp_generic.c in the Linux kernel     allowed local users to cause a denial of service (memory     corruption and system crash, or spinlock) or possibly     have unspecified other impact by removing a network     namespace, related to the ppp_register_net_channel and     ppp_unregister_channel functions (bnc#980371).

  - CVE-2015-7833: The usbvision driver in the Linux kernel     allowed physically proximate attackers to cause a denial     of service (panic) via a nonzero bInterfaceNumber value     in a USB device descriptor (bnc#950998).

  - CVE-2016-2187: The gtco_probe function in     drivers/input/tablet/gtco.c in the Linux kernel allowed     physically proximate attackers to cause a denial of     service (NULL pointer dereference and system crash) via     a crafted endpoints value in a USB device descriptor     (bnc#971944).

  - CVE-2016-4482: The proc_connectinfo function in     drivers/usb/core/devio.c in the Linux kernel did not     initialize a certain data structure, which allowed local     users to obtain sensitive information from kernel stack     memory via a crafted USBDEVFS_CONNECTINFO ioctl call     (bnc#978401).

  - CVE-2016-4565: The InfiniBand (aka IB) stack in the     Linux kernel incorrectly relies on the write system     call, which allowed local users to cause a denial of     service (kernel memory write operation) or possibly have     unspecified other impact via a uAPI interface     (bnc#979548).

  - CVE-2016-4485: The llc_cmsg_rcv function in     net/llc/af_llc.c in the Linux kernel did not initialize     a certain data structure, which allowed attackers to     obtain sensitive information from kernel stack memory by     reading a message (bnc#978821).

  - CVE-2016-4578: sound/core/timer.c in the Linux kernel     did not initialize certain r1 data structures, which     allowed local users to obtain sensitive information from     kernel stack memory via crafted use of the ALSA timer     interface, related to the (1) snd_timer_user_ccallback     and (2) snd_timer_user_tinterrupt functions     (bnc#979879).

  - CVE-2016-4569: The snd_timer_user_params function in     sound/core/timer.c in the Linux kernel did not     initialize a certain data structure, which allowed local     users to obtain sensitive information from kernel stack     memory via crafted use of the ALSA timer interface     (bnc#979213).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The openSUSE 13.2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

  - CVE-2015-8962: Double free vulnerability in the     sg_common_write function in drivers/scsi/sg.c in the     Linux kernel allowed local users to gain privileges or     cause a denial of service (memory corruption and system     crash) by detaching a device during an SG_IO ioctl call     (bnc#1010501).

  - CVE-2015-8963: Race condition in kernel/events/core.c in     the Linux kernel allowed local users to gain privileges     or cause a denial of service (use-after-free) by     leveraging incorrect handling of an swevent data     structure during a CPU unplug operation (bnc#1010502).

  - CVE-2016-7042: The proc_keys_show function in     security/keys/proc.c in the Linux kernel through 4.8.2,     when the GNU Compiler Collection (gcc) stack protector     is enabled, uses an incorrect buffer size for certain     timeout data, which allowed local users to cause a     denial of service (stack memory corruption and panic) by     reading the /proc/keys file (bnc#1004517).

  - CVE-2016-7910: Use-after-free vulnerability in the     disk_seqf_stop function in block/genhd.c in the Linux     kernel allowed local users to gain privileges by     leveraging the execution of a certain stop operation     even if the corresponding start operation had failed     (bnc#1010716).

  - CVE-2016-7911: Race condition in the get_task_ioprio     function in block/ioprio.c in the Linux kernel allowed     local users to gain privileges or cause a denial of     service (use-after-free) via a crafted ioprio_get system     call (bnc#1010711).

  - CVE-2016-7913: The xc2028_set_config function in     drivers/media/tuners/tuner-xc2028.c in the Linux kernel     allowed local users to gain privileges or cause a denial     of service (use-after-free) via vectors involving     omission of the firmware name from a certain data     structure (bnc#1010478).

  - CVE-2016-7914: The assoc_array_insert_into_terminal_node     function in lib/assoc_array.c in the Linux kernel did     not check whether a slot is a leaf, which allowed local     users to obtain sensitive information from kernel memory     or cause a denial of service (invalid pointer     dereference and out-of-bounds read) via an application     that uses associative-array data structures, as     demonstrated by the keyutils test suite (bnc#1010475).

  - CVE-2016-7916: Race condition in the environ_read     function in fs/proc/base.c in the Linux kernel allowed     local users to obtain sensitive information from kernel     memory by reading a /proc/*/environ file during a     process-setup time interval in which     environment-variable copying is incomplete     (bnc#1010467).

  - CVE-2016-8633: drivers/firewire/net.c in the Linux     kernel before 4.8.7, in certain unusual hardware     configurations, allowed remote attackers to execute     arbitrary code via crafted fragmented packets     (bnc#1008833).

  - CVE-2016-8646: The hash_accept function in     crypto/algif_hash.c in the Linux kernel allowed local     users to cause a denial of service (OOPS) by attempting     to trigger use of in-kernel hash algorithms for a socket     that has received zero bytes of data (bnc#1010150).

  - CVE-2016-8655: A race condition in the af_packet     packet_set_ring function could be used by local     attackers to crash the kernel or gain privileges     (bsc#1012754).

  - CVE-2016-9555: The sctp_sf_ootb function in     net/sctp/sm_statefuns.c in the Linux kernel lacks     chunk-length checking for the first chunk, which allowed     remote attackers to cause a denial of service     (out-of-bounds slab access) or possibly have unspecified     other impact via crafted SCTP data (bnc#1011685).

The following non-security bugs were fixed :

  - bna: Add synchronization for tx ring (bsc#993739).

  - bonding: set carrier off for devices created through     netlink (bsc#999577).

  - btrfs: fix extent tree corruption due to relocation     (bsc#990384).

  - introduce NETIF_F_GSO_ENCAP_ALL helper mask     (bsc#1001486).

  - ipv6: send NEWLINK on RA managed/otherconf changes     (bsc#934067).

  - ipv6: send only one NEWLINK when RA causes changes     (bsc#934067).

  - tunnels: Remove encapsulation offloads on decap     (bsc#1001486).

  - usbhid: add ATEN CS962 to list of quirky devices     (bsc#1007615).

  - vmxnet3: Wake queue from reset work (bsc#999907).

The openSUSE Leap 42.1 kernel was updated to 4.1.36 to receive various security and bugfixes.

The following security bugs were fixed :

  - CVE-2016-8655: A race condition in the af_packet     packet_set_ring function could be used by local     attackers to crash the kernel or gain privileges     (bsc#1012754).

  - CVE-2016-9794: A use-after-free in ALSA pcm could lead     to crashes or allowed local users to potentially gain     privileges (bsc#1013533).

  - CVE-2015-8962: Double free vulnerability in the     sg_common_write function in drivers/scsi/sg.c in the     Linux kernel allowed local users to gain privileges or     cause a denial of service (memory corruption and system     crash) by detaching a device during an SG_IO ioctl call     (bnc#1010501).

  - CVE-2016-9178: The __get_user_asm_ex macro in     arch/x86/include/asm/uaccess.h in the Linux kernel did     not initialize a certain integer variable, which allowed     local users to obtain sensitive information from kernel     stack memory by triggering failure of a get_user_ex call     (bnc#1008650).

  - CVE-2016-7913: The xc2028_set_config function in     drivers/media/tuners/tuner-xc2028.c in the Linux kernel     allowed local users to gain privileges or cause a denial     of service (use-after-free) via vectors involving     omission of the firmware name from a certain data     structure (bnc#1010478).

  - CVE-2016-9555: The sctp_sf_ootb function in     net/sctp/sm_statefuns.c in the Linux kernel lacks     chunk-length checking for the first chunk, which allowed     remote attackers to cause a denial of service     (out-of-bounds slab access) or possibly have unspecified     other impact via crafted SCTP data (bnc#1011685).

  - CVE-2015-8963: Race condition in kernel/events/core.c in     the Linux kernel allowed local users to gain privileges     or cause a denial of service (use-after-free) by     leveraging incorrect handling of an swevent data     structure during a CPU unplug operation (bnc#1010502).

  - CVE-2015-8964: The tty_set_termios_ldisc function in     drivers/tty/tty_ldisc.c in the Linux kernel allowed     local users to obtain sensitive information from kernel     memory by reading a tty data structure (bnc#1010507).

  - CVE-2016-8646: The hash_accept function in     crypto/algif_hash.c in the Linux kernel allowed local     users to cause a denial of service (OOPS) by attempting     to trigger use of in-kernel hash algorithms for a socket     that has received zero bytes of data (bnc#1010150).

  - CVE-2016-8633: drivers/firewire/net.c in the Linux     kernel in certain unusual hardware configurations,     allowed remote attackers to execute arbitrary code via     crafted fragmented packets (bnc#1008833).

  - CVE-2016-8630: The x86_decode_insn function in     arch/x86/kvm/emulate.c in the Linux kernel, when KVM is     enabled, allowed local users to cause a denial of     service (host OS crash) via a certain use of a ModR/M     byte in an undefined instruction (bnc#1009222).

  - CVE-2016-9083: drivers/vfio/pci/vfio_pci.c in the Linux     kernel allowed local users to bypass integer overflow     checks, and cause a denial of service (memory     corruption) or have unspecified other impact, by     leveraging access to a vfio PCI device file for a     VFIO_DEVICE_SET_IRQS ioctl call, aka a 'state machine     confusion bug (bnc#1007197).

  - CVE-2016-9084: drivers/vfio/pci/vfio_pci_intrs.c in the     Linux kernel misuses the kzalloc function, which allowed     local users to cause a denial of service (integer     overflow) or have unspecified other impact by leveraging     access to a vfio PCI device file (bnc#1007197).

  - CVE-2016-7042: The proc_keys_show function in     security/keys/proc.c in the Linux kernel through 4.8.2,     when the GNU Compiler Collection (gcc) stack protector     is enabled, uses an incorrect buffer size for certain     timeout data, which allowed local users to cause a     denial of service (stack memory corruption and panic) by     reading the /proc/keys file (bnc#1004517).

  - CVE-2016-7097: The filesystem implementation in the     Linux kernel preserves the setgid bit during a setxattr     call, which allowed local users to gain group privileges     by leveraging the existence of a setgid program with     restrictions on execute permissions (bnc#995968).

  - CVE-2015-8956: The rfcomm_sock_bind function in     net/bluetooth/rfcomm/sock.c in the Linux kernel allowed     local users to obtain sensitive information or cause a     denial of service (NULL pointer dereference) via vectors     involving a bind system call on a Bluetooth RFCOMM     socket (bnc#1003925).

The following non-security bugs were fixed :

  - ata: ahci_xgene: dereferencing uninitialized pointer in     probe (bsc#1006580).

  - blacklist.conf: add some commits (bsc#1006580)

  - bna: Add synchronization for tx ring (bsc#993739).

  - bonding: set carrier off for devices created through     netlink (bsc#999577).

  - btrfs: deal with duplicates during extent_map insertion     in btrfs_get_extent (bsc#1001171).

  - btrfs: deal with existing encompassing extent map in     btrfs_get_extent() (bsc#1001171).

  - btrfs: fix extent tree corruption due to relocation     (bsc#990384).

  - btrfs: fix races on root_log_ctx lists (bsc#1007653).

  - ext4: fix data exposure after a crash (bsc#1012876).

  - ext4: fix reference counting bug on block allocation     error (bsc#1012876).

  - gre: Disable segmentation offloads w/ CSUM and we are     encapsulated via FOU (bsc#1001486).

  - gro: Allow tunnel stacking in the case of FOU/GUE     (bsc#1001486).

  - ipv6: send NEWLINK on RA managed/otherconf changes     (bsc#934067).

  - ipv6: send only one NEWLINK when RA causes changes     (bsc#934067).

  - isofs: Do not return EACCES for unknown filesystems     (bsc#1012876).

  - jbd2: fix checkpoint list cleanup (bsc#1012876).

  - jbd2: Fix unreclaimed pages after truncate in     data=journal mode (bsc#1010909).

  - locking/static_key: Fix concurrent static_key_slow_inc()     (bsc#1006580).

  - mmc: Fix kabi breakage of mmc-block in 4.1.36     (stable-4.1.36).

  - posix_acl: Added fix for f2fs.

  - Revert 'kbuild: add -fno-PIE' (stable-4.1.36).

  - Revert 'x86/mm: Expand the exception table logic to     allow new handling options' (stable-4.1.36).

  - tunnels: Remove encapsulation offloads on decap     (bsc#1001486).

  - usbhid: add ATEN CS962 to list of quirky devices     (bsc#1007615).

  - vmxnet3: Wake queue from reset work (bsc#999907).

ID	Name	Product	Family	Severity
252044	Linux Distros Unpatched Vulnerability : CVE-2016-8646	Nessus	Misc.	medium
124973	EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1520)	Nessus	Huawei Local Security Checks	critical
124819	EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1496)	Nessus	Huawei Local Security Checks	critical
102511	Oracle Linux 7 : kernel (ELSA-2017-1842-1) (Stack Clash)	Nessus	Oracle Linux Local Security Checks	critical
101474	Virtuozzo 7 : kernel / kernel-abi-whitelists / kernel-debug / etc (VZLSA-2017-1308)	Nessus	Virtuozzo Local Security Checks	high
100599	Virtuozzo 7 : readykernel-patch (VZA-2017-043)	Nessus	Virtuozzo Local Security Checks	high
100598	Virtuozzo 7 : readykernel-patch (VZA-2017-042)	Nessus	Virtuozzo Local Security Checks	critical
100507	Oracle Linux 7 : kernel (ELSA-2017-1308)	Nessus	Oracle Linux Local Security Checks	high
100506	Oracle Linux 7 : kernel (ELSA-2017-1308-1)	Nessus	Oracle Linux Local Security Checks	high
100458	Scientific Linux Security Update : kernel on SL7.x x86_64 (20170525)	Nessus	Scientific Linux Local Security Checks	high
100457	RHEL 7 : kernel (RHSA-2017:1308)	Nessus	Red Hat Local Security Checks	high
100456	RHEL 7 : kernel-rt (RHSA-2017:1298)	Nessus	Red Hat Local Security Checks	high
100455	RHEL 6 : kernel-rt (RHSA-2017:1297)	Nessus	Red Hat Local Security Checks	high
100430	CentOS 7 : kernel (CESA-2017:1308)	Nessus	CentOS Local Security Checks	high
99163	OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0057) (Dirty COW)	Nessus	OracleVM Local Security Checks	critical
97297	SUSE SLES11 Security Update : kernel (SUSE-SU-2017:0494-1)	Nessus	SuSE Local Security Checks	critical
97119	OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0040)	Nessus	OracleVM Local Security Checks	high
97118	Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2017-3516)	Nessus	Oracle Linux Local Security Checks	high
97117	Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3515)	Nessus	Oracle Linux Local Security Checks	high
97097	SUSE SLES11 Security Update : kernel (SUSE-SU-2017:0437-1)	Nessus	SuSE Local Security Checks	critical
97079	OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0039)	Nessus	OracleVM Local Security Checks	high
97057	Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3514)	Nessus	Oracle Linux Local Security Checks	high
96903	SUSE SLES11 Security Update : kernel (SUSE-SU-2017:0333-1)	Nessus	SuSE Local Security Checks	critical
95705	openSUSE Security Update : the Linux Kernel (openSUSE-2016-1431)	Nessus	SuSE Local Security Checks	critical
95702	openSUSE Security Update : the Linux Kernel (openSUSE-2016-1428)	Nessus	SuSE Local Security Checks	critical

Detections

Analytics

CVE-2016-8646

medium

Tenable Plugins

medium

critical

critical

critical

high

high

critical

high

high

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high

critical

critical

high

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critical

high

high

critical

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critical