The SUSE Linux Enterprise 12 SP2 kernel was updated to 4.4.120 to receive various security and bugfixes. The following security bugs were fixed :

  - CVE-2017-13166: An elevation of privilege vulnerability     in the v4l2 video driver was fixed. (bnc#1072865).

  - CVE-2017-15951: The KEYS subsystem did not correctly     synchronize the actions of updating versus finding a key     in the 'negative' state to avoid a race condition, which     allowed local users to cause a denial of service or     possibly have unspecified other impact via crafted     system calls (bnc#1062840 bnc#1065615).

  - CVE-2017-16644: The hdpvr_probe function in     drivers/media/usb/hdpvr/hdpvr-core.c allowed local users     to cause a denial of service (improper error handling     and system crash) or possibly have unspecified other     impact via a crafted USB device (bnc#1067118).

  - CVE-2017-16912: The 'get_pipe()' function     (drivers/usb/usbip/stub_rx.c) allowed attackers to cause     a denial of service (out-of-bounds read) via a specially     crafted USB over IP packet (bnc#1078673).

  - CVE-2017-16913: The 'stub_recv_cmd_submit()' function     (drivers/usb/usbip/stub_rx.c) when handling CMD_SUBMIT     packets allowed attackers to cause a denial of service     (arbitrary memory allocation) via a specially crafted     USB over IP packet (bnc#1078672).

  - CVE-2017-17975: Use-after-free in the usbtv_probe     function in drivers/media/usb/usbtv/usbtv-core.c allowed     attackers to cause a denial of service (system crash) or     possibly have unspecified other impact by triggering     failure of audio registration, because a kfree of the     usbtv data structure occurs during a usbtv_video_free     call, but the usbtv_video_fail label's code attempts to     both access and free this data structure (bnc#1074426).

  - CVE-2017-18208: The madvise_willneed function in     mm/madvise.c allowed local users to cause a denial of     service (infinite loop) by triggering use of     MADVISE_WILLNEED for a DAX mapping (bnc#1083494).

  - CVE-2018-8087: Memory leak in the hwsim_new_radio_nl     function in drivers/net/wireless/mac80211_hwsim.c     allowed local users to cause a denial of service (memory     consumption) by triggering an out-of-array error case     (bnc#1085053).

  - CVE-2018-1000026: A insufficient input validation     vulnerability in the bnx2x network card driver could     result in DoS: Network card firmware assertion takes     card off-line. This attack appear to be exploitable via     An attacker on a must pass a very large, specially     crafted packet to the bnx2x card. This can be done from     an untrusted guest VM. (bnc#1079384).

  - CVE-2018-1068: Insufficient user provided offset     checking in the ebtables compat code allowed local     attackers to overwrite kernel memory and potentially     execute code. (bsc#1085107)

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 Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3654-1 advisory.

  - Use-after-free in the usbtv_probe function in drivers/media/usb/usbtv/usbtv-core.c in the Linux kernel     through 4.14.10 allows attackers to cause a denial of service (system crash) or possibly have unspecified     other impact by triggering failure of audio registration, because a kfree of the usbtv data structure     occurs during a usbtv_video_free call, but the usbtv_video_fail label's code attempts to both access and     free this data structure. (CVE-2017-17975)

  - fs/f2fs/extent_cache.c in the Linux kernel before 4.13 mishandles extent trees, which allows local users     to cause a denial of service (BUG) via an application with multiple threads. (CVE-2017-18193)

  - In the Linux kernel before 4.12, Hisilicon Network Subsystem (HNS) does not consider the ETH_SS_PRIV_FLAGS     case when retrieving sset_count data, which allows local users to cause a denial of service (buffer     overflow and memory corruption) or possibly have unspecified other impact, as demonstrated by     incompatibility between hns_get_sset_count and ethtool_get_strings. (CVE-2017-18222)

  - The netfilter subsystem in the Linux kernel through 4.15.7 mishandles the case of a rule blob that     contains a jump but lacks a user-defined chain, which allows local users to cause a denial of service     (NULL pointer dereference) by leveraging the CAP_NET_RAW or CAP_NET_ADMIN capability, related to     arpt_do_table in net/ipv4/netfilter/arp_tables.c, ipt_do_table in net/ipv4/netfilter/ip_tables.c, and     ip6t_do_table in net/ipv6/netfilter/ip6_tables.c. (CVE-2018-1065)

  - A flaw was found in the Linux 4.x kernel's implementation of 32-bit syscall interface for bridging. This     allowed a privileged user to arbitrarily write to a limited range of kernel memory. (CVE-2018-1068)

  - Linux kernel before version 4.16-rc7 is vulnerable to a null pointer dereference in dccp_write_xmit()     function in net/dccp/output.c in that allows a local user to cause a denial of service by a number of     certain crafted system calls. (CVE-2018-1130)

  - Systems with microprocessors utilizing speculative execution and speculative execution of memory reads     before the addresses of all prior memory writes are known may allow unauthorized disclosure of information     to an attacker with local user access via a side-channel analysis, aka Speculative Store Bypass (SSB),     Variant 4. (CVE-2018-3639)

  - In the Linux Kernel before version 4.15.8, 4.14.25, 4.9.87, 4.4.121, 4.1.51, and 3.2.102, an error in the
    _sctp_make_chunk() function (net/sctp/sm_make_chunk.c) when handling SCTP packets length can be     exploited to cause a kernel crash. (CVE-2018-5803)

  - The blkcg_init_queue function in block/blk-cgroup.c in the Linux kernel before 4.11 allows local users to     cause a denial of service (double free) or possibly have unspecified other impact by triggering a creation     failure. (CVE-2018-7480)

  - Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c in the Linux     kernel through 4.15.7 allows local users to cause a denial of service (memory consumption) via many read     accesses to files in the /sys/class/sas_phy directory, as demonstrated by the     /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file. (CVE-2018-7757)

  - Race condition in the store_int_with_restart() function in arch/x86/kernel/cpu/mcheck/mce.c in the Linux     kernel through 4.15.7 allows local users to cause a denial of service (panic) by leveraging root access to     write to the check_interval file in a /sys/devices/system/machinecheck/machinecheck<cpu number> directory.
    NOTE: a third party has indicated that this report is not security relevant (CVE-2018-7995)

  - The udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c at the Linux kernel version 3.4 and up to and     including 4.15 has an integer-overflow vulnerability allowing local users with access to the udldrmfb     driver to obtain full read and write permissions on kernel physical pages, resulting in a code execution     in kernel space. (CVE-2018-8781)

  - Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c in the Linux     kernel through 4.15.11, and in drivers/staging/ncpfs/ncplib_kernel.c in the Linux kernel 4.16-rc through     4.16-rc6, could be exploited by malicious NCPFS servers to crash the kernel or execute code.
    (CVE-2018-8822)

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

It was discovered that the netlink subsystem in the Linux kernel did not properly restrict observations of netlink messages to the appropriate net namespace. A local attacker could use this to expose sensitive information (kernel netlink traffic). (CVE-2017-17449)

Tuba Yavuz discovered that a double-free error existed in the USBTV007 driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
(CVE-2017-17975)

It was discovered that a race condition existed in the Device Mapper component of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-18203)

It was discovered that an infinite loop could occur in the madvise(2) implementation in the Linux kernel in certain circumstances. A local attacker could use this to cause a denial of service (system hang).
(CVE-2017-18208)

Silvio Cesare discovered a buffer overwrite existed in the NCPFS implementation in the Linux kernel. A remote attacker controlling a malicious NCPFS server could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-8822).

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

The SUSE Linux Enterprise 12 SP3 kernel was updated to 4.4.120 to receive various security and bugfixes. The following security bugs were fixed :

  - CVE-2017-13166: An elevation of privilege vulnerability     in the v4l2 video driver. (bnc#1072865).

  - CVE-2017-15951: The KEYS subsystem did not correctly     synchronize the actions of updating versus finding a key     in the 'negative' state to avoid a race condition, which     allowed local users to cause a denial of service or     possibly have unspecified other impact via crafted     system calls (bnc#1062840 bnc#1065615).

  - CVE-2017-16644: The hdpvr_probe function in     drivers/media/usb/hdpvr/hdpvr-core.c allowed local users     to cause a denial of service (improper error handling     and system crash) or possibly have unspecified other     impact via a crafted USB device (bnc#1067118).

  - CVE-2017-16912: The 'get_pipe()' function     (drivers/usb/usbip/stub_rx.c) allowed attackers to cause     a denial of service (out-of-bounds read) via a specially     crafted USB over IP packet (bnc#1078673).

  - CVE-2017-16913: The 'stub_recv_cmd_submit()' function     (drivers/usb/usbip/stub_rx.c) when handling CMD_SUBMIT     packets allowed attackers to cause a denial of service     (arbitrary memory allocation) via a specially crafted     USB over IP packet (bnc#1078672).

  - CVE-2017-17975: Use-after-free in the usbtv_probe     function in drivers/media/usb/usbtv/usbtv-core.c allowed     attackers to cause a denial of service (system crash) or     possibly have unspecified other impact by triggering     failure of audio registration, because a kfree of the     usbtv data structure occurs during a usbtv_video_free     call, but the usbtv_video_fail label's code attempts to     both access and free this data structure (bnc#1074426).

  - CVE-2017-18174: The amd_gpio_remove function in     drivers/pinctrl/pinctrl-amd.c calls the     pinctrl_unregister function, leading to a double free     (bnc#1080533).

  - CVE-2017-18208: The madvise_willneed function in     mm/madvise.c allowed local users to cause a denial of     service (infinite loop) by triggering use of     MADVISE_WILLNEED for a DAX mapping (bnc#1083494).

  - CVE-2018-1000026: A insufficient input validation     vulnerability in bnx2x network card driver could result     in DoS: Network card firmware assertion takes card     off-line. This attack appear to be exploitable via An     attacker on a must pass a very large, specially crafted     packet to the bnx2x card. This can be done from an     untrusted guest VM. (bnc#1079384).

  - CVE-2018-8087: Memory leak in the hwsim_new_radio_nl     function in drivers/net/wireless/mac80211_hwsim.c     allowed local users to cause a denial of service (memory     consumption) by triggering an out-of-array error case     (bnc#1085053).

  - CVE-2018-1068: Insufficient user provided offset     checking in the ebtables compat code allowed local     attackers to overwrite kernel memory and potentially     execute code. (bsc#1085107)

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 Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3656-1 advisory.

  - Use-after-free in the usbtv_probe function in drivers/media/usb/usbtv/usbtv-core.c in the Linux kernel     through 4.14.10 allows attackers to cause a denial of service (system crash) or possibly have unspecified     other impact by triggering failure of audio registration, because a kfree of the usbtv data structure     occurs during a usbtv_video_free call, but the usbtv_video_fail label's code attempts to both access and     free this data structure. (CVE-2017-17975)

  - fs/f2fs/extent_cache.c in the Linux kernel before 4.13 mishandles extent trees, which allows local users     to cause a denial of service (BUG) via an application with multiple threads. (CVE-2017-18193)

  - In the Linux kernel before 4.12, Hisilicon Network Subsystem (HNS) does not consider the ETH_SS_PRIV_FLAGS     case when retrieving sset_count data, which allows local users to cause a denial of service (buffer     overflow and memory corruption) or possibly have unspecified other impact, as demonstrated by     incompatibility between hns_get_sset_count and ethtool_get_strings. (CVE-2017-18222)

  - The netfilter subsystem in the Linux kernel through 4.15.7 mishandles the case of a rule blob that     contains a jump but lacks a user-defined chain, which allows local users to cause a denial of service     (NULL pointer dereference) by leveraging the CAP_NET_RAW or CAP_NET_ADMIN capability, related to     arpt_do_table in net/ipv4/netfilter/arp_tables.c, ipt_do_table in net/ipv4/netfilter/ip_tables.c, and     ip6t_do_table in net/ipv6/netfilter/ip6_tables.c. (CVE-2018-1065)

  - A flaw was found in the Linux 4.x kernel's implementation of 32-bit syscall interface for bridging. This     allowed a privileged user to arbitrarily write to a limited range of kernel memory. (CVE-2018-1068)

  - Linux kernel before version 4.16-rc7 is vulnerable to a null pointer dereference in dccp_write_xmit()     function in net/dccp/output.c in that allows a local user to cause a denial of service by a number of     certain crafted system calls. (CVE-2018-1130)

  - In the Linux Kernel before version 4.15.8, 4.14.25, 4.9.87, 4.4.121, 4.1.51, and 3.2.102, an error in the
    _sctp_make_chunk() function (net/sctp/sm_make_chunk.c) when handling SCTP packets length can be     exploited to cause a kernel crash. (CVE-2018-5803)

  - The blkcg_init_queue function in block/blk-cgroup.c in the Linux kernel before 4.11 allows local users to     cause a denial of service (double free) or possibly have unspecified other impact by triggering a creation     failure. (CVE-2018-7480)

  - Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c in the Linux     kernel through 4.15.7 allows local users to cause a denial of service (memory consumption) via many read     accesses to files in the /sys/class/sas_phy directory, as demonstrated by the     /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file. (CVE-2018-7757)

  - Race condition in the store_int_with_restart() function in arch/x86/kernel/cpu/mcheck/mce.c in the Linux     kernel through 4.15.7 allows local users to cause a denial of service (panic) by leveraging root access to     write to the check_interval file in a /sys/devices/system/machinecheck/machinecheck<cpu number> directory.
    NOTE: a third party has indicated that this report is not security relevant (CVE-2018-7995)

  - The udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c at the Linux kernel version 3.4 and up to and     including 4.15 has an integer-overflow vulnerability allowing local users with access to the udldrmfb     driver to obtain full read and write permissions on kernel physical pages, resulting in a code execution     in kernel space. (CVE-2018-8781)

  - Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c in the Linux     kernel through 4.15.11, and in drivers/staging/ncpfs/ncplib_kernel.c in the Linux kernel 4.16-rc through     4.16-rc6, could be exploited by malicious NCPFS servers to crash the kernel or execute code.
    (CVE-2018-8822)

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

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 :

  - In the Linux kernel through 4.19, a use-after-free can     occur due to a race condition between fanout_add from     setsockopt and bind on an AF_PACKET socket. This issue     exists because of the     15fe076edea787807a7cdc168df832544b58eba6 incomplete fix     for a race condition. The code mishandles a certain     multithreaded case involving a packet_do_bind     unregister action followed by a packet_notifier     register action. Later, packet_release operates on only     one of the two applicable linked lists. The attacker     can achieve Program Counter control.(CVE-2018-18559i1/4%0

  - The acpi_ns_terminate() function in     drivers/acpi/acpica/nsutils.c in the Linux kernel     before 4.12 does not flush the operand cache and causes     a kernel stack dump. A local users could obtain     sensitive information from kernel memory and bypass the     KASLR protection mechanism (in the kernel through 4.9)     via a crafted ACPI table.(CVE-2017-11472i1/4%0

  - Race condition in net/packet/af_packet.c in the Linux     kernel allows local users to cause a denial of service     (use-after-free) or possibly have unspecified other     impact via a multithreaded application that makes     PACKET_FANOUT setsockopt system calls.(CVE-2017-6346i1/4%0

  - Multiple race conditions in ipc/shm.c in the Linux     kernel before 3.12.2 allow local users to cause a     denial of service (use-after-free and system crash) or     possibly have unspecified other impact via a crafted     application that uses shmctl IPC_RMID operations in     conjunction with other shm system     calls.(CVE-2013-7026i1/4%0

  - An issue was discovered in the Linux kernel. A NULL     pointer dereference and panic in hfsplus_lookup() in     the fs/hfsplus/dir.c function can occur when opening a     file (that is purportedly a hard link) in an hfs+     filesystem that has malformed catalog data, and is     mounted read-only without a metadata     directory.(CVE-2018-14617i1/4%0

  - The treo_attach function in drivers/usb/serial/visor.c     in the Linux kernel before 4.5 allows physically     proximate attackers to cause a denial of service (NULL     pointer dereference and system crash) or possibly have     unspecified other impact by inserting a USB device that     lacks a (1) bulk-in or (2) interrupt-in     endpoint.(CVE-2016-2782i1/4%0

  - An information-exposure flaw was found in the Linux     kernel where the pcpu_embed_first_chunk() function in     mm/percpu.c allows local users to obtain kernel-object     address information by reading the kernel log (dmesg).
    However, this address is not static and cannot be used     to commit a further attack.(CVE-2018-5995i1/4%0

  - Buffer overflow in net/ceph/auth_x.c in Ceph, as used     in the Linux kernel before 3.16.3, allows remote     attackers to cause a denial of service (memory     corruption and panic) or possibly have unspecified     other impact via a long unencrypted auth     ticket.(CVE-2014-6416i1/4%0

  - It was found that the Linux kernel's ptrace subsystem     allowed a traced process' instruction pointer to be set     to a non-canonical memory address without forcing the     non-sysret code path when returning to user space. A     local, unprivileged user could use this flaw to crash     the system or, potentially, escalate their privileges     on the system.Note: The CVE-2014-4699 issue only     affected systems using an Intel CPU.(CVE-2014-4699i1/4%0

  - The snd_compr_tstamp function in     sound/core/compress_offload.c in the Linux kernel     through 4.7, as used in Android before 2016-08-05 on     Nexus 5 and 7 (2013) devices, does not properly     initialize a timestamp data structure, which allows     attackers to obtain sensitive information via a crafted     application, aka Android internal bug 28770164 and     Qualcomm internal bug CR568717.(CVE-2014-9892i1/4%0

  - A flaw was found in the way the Linux kernel's ext4     file system handled the 'page size i1/4z block size'     condition when the fallocate zero range functionality     was used. A local attacker could use this flaw to crash     the system.(CVE-2015-0275i1/4%0

  - An information leak flaw was found in the way the Linux     kernel's ISO9660 file system implementation accessed     data on an ISO9660 image with RockRidge Extension     Reference (ER) records. An attacker with physical     access to the system could use this flaw to disclose up     to 255 bytes of kernel memory.(CVE-2014-9584i1/4%0

  - The pivot_root implementation in fs/namespace.c in the     Linux kernel through 3.17 does not properly interact     with certain locations of a chroot directory, which     allows local users to cause a denial of service     (mount-tree loop) via . (dot) values in both arguments     to the pivot_root system call.(CVE-2014-7970i1/4%0

  - arch/x86/kvm/emulate.c in the Linux kernel before     4.8.12 does not properly initialize Code Segment (CS)     in certain error cases, which allows local users to     obtain sensitive information from kernel stack memory     via a crafted application.(CVE-2016-9756i1/4%0

  - A flaw was found in the Linux kernel where the     swiotlb_print_info() function in lib/swiotlb.c allows     local users to obtain some kernel address information     by reading the kernel log (dmesg). This address is not     useful to commit a further attack.(CVE-2018-5953i1/4%0

  - A flaw was found in the way the Linux kernel's file     system implementation handled rename operations in     which the source was inside and the destination was     outside of a bind mount. A privileged user inside a     container could use this flaw to escape the bind mount     and, potentially, escalate their privileges on the     system.(CVE-2015-2925i1/4%0

  - A use-after-free fault in the Linux kernel's usbtv     driver could allow an attacker to cause a denial of     service (system crash), or have unspecified other     impacts, by triggering failure of audio registration of     USB hardware using the usbtv kernel     module.(CVE-2017-17975i1/4%0

  - The mm subsystem in the Linux kernel through 4.10.10     does not properly enforce the CONFIG_STRICT_DEVMEM     protection mechanism, which allows local users to read     or write to kernel memory locations in the first     megabyte (and bypass slab-allocation access     restrictions) via an application that opens the     /dev/mem file, related to arch/x86/mm/init.c and     drivers/char/mem.c.(CVE-2017-7889i1/4%0

  - A flaw was discovered in the way the kernel allows     stackable filesystems to overlay. A local attacker who     is able to mount filesystems can abuse this flaw to     escalate privileges.(CVE-2014-9922i1/4%0

  - sound/core/timer.c in the Linux kernel before 4.4.1     retains certain linked lists after a close or stop     action, which allows local users to cause a denial of     service (system crash) via a crafted ioctl call,     related to the (1) snd_timer_close and (2)
    _snd_timer_stop functions.(CVE-2016-2548i1/4%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.

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

  - CVE-2017-5715     Multiple researchers have discovered a vulnerability in     various processors supporting speculative execution,     enabling an attacker controlling an unprivileged process     to read memory from arbitrary addresses, including from     the kernel and all other processes running on the     system.

  This specific attack has been named Spectre variant 2 (branch target   injection) and is mitigated for the x86 architecture (amd64 and   i386) by using the 'retpoline' compiler feature which allows   indirect branches to be isolated from speculative execution.

  - CVE-2017-5753     Multiple researchers have discovered a vulnerability in     various processors supporting speculative execution,     enabling an attacker controlling an unprivileged process     to read memory from arbitrary addresses, including from     the kernel and all other processes running on the     system.

  This specific attack has been named Spectre variant 1 (bounds-check   bypass) and is mitigated by identifying vulnerable code sections   (array bounds checking followed by array access) and replacing the   array access with the speculation-safe array_index_nospec()   function.

  More use sites will be added over time.

  - CVE-2017-17975     Tuba Yavuz reported a use-after-free flaw in the     USBTV007 audio-video grabber driver. A local user could     use this for denial of service by triggering failure of     audio registration.

  - CVE-2017-18193     Yunlei He reported that the f2fs implementation does not     properly handle extent trees, allowing a local user to     cause a denial of service via an application with     multiple threads.

  - CVE-2017-18216     Alex Chen reported that the OCFS2 filesystem failed to     hold a necessary lock during nodemanager sysfs file     operations, potentially leading to a NULL pointer     dereference. A local user could use this for denial of     service.

  - CVE-2017-18218     Jun He reported a use-after-free flaw in the Hisilicon     HNS ethernet driver. A local user could use this for     denial of service.

  - CVE-2017-18222     It was reported that the Hisilicon Network Subsystem     (HNS) driver implementation does not properly handle     ethtool private flags. A local user could use this for     denial of service or possibly have other impact.

  - CVE-2017-18224     Alex Chen reported that the OCFS2 filesystem omits the     use of a semaphore and consequently has a race condition     for access to the extent tree during read operations in     DIRECT mode. A local user could use this for denial of     service.

  - CVE-2017-18241     Yunlei He reported that the f2fs implementation does not     properly initialise its state if the 'noflush_merge'     mount option is used. A local user with access to a     filesystem mounted with this option could use this to     cause a denial of service.

  - CVE-2017-18257     It was reported that the f2fs implementation is prone to     an infinite loop caused by an integer overflow in the
    __get_data_block() function. A local user can use this     for denial of service via crafted use of the open and     fallocate system calls with an FS_IOC_FIEMAP ioctl.

  - CVE-2018-1065     The syzkaller tool found a NULL pointer dereference flaw     in the netfilter subsystem when handling certain     malformed iptables rulesets. A local user with the     CAP_NET_RAW or CAP_NET_ADMIN capability (in any user     namespace) could use this to cause a denial of service.
    Debian disables unprivileged user namespaces by default.

  - CVE-2018-1066     Dan Aloni reported to Red Hat that the CIFS client     implementation would dereference a NULL pointer if the     server sent an invalid response during NTLMSSP setup     negotiation. This could be used by a malicious server     for denial of service.

  - CVE-2018-1068     The syzkaller tool found that the 32-bit compatibility     layer of ebtables did not sufficiently validate offset     values. On a 64-bit kernel, a local user with the     CAP_NET_ADMIN capability (in any user namespace) could     use this to overwrite kernel memory, possibly leading to     privilege escalation. Debian disables unprivileged user     namespaces by default.

  - CVE-2018-1092     Wen Xu reported that a crafted ext4 filesystem image     would trigger a null dereference when mounted. A local     user able to mount arbitrary filesystems could use this     for denial of service.

  - CVE-2018-1093     Wen Xu reported that a crafted ext4 filesystem image     could trigger an out-of-bounds read in the     ext4_valid_block_bitmap() function. A local user able to     mount arbitrary filesystems could use this for denial of     service.

  - CVE-2018-1108     Jann Horn reported that crng_ready() does not properly     handle the crng_init variable states and the RNG could     be treated as cryptographically safe too early after     system boot.

  - CVE-2018-5803     Alexey Kodanev reported that the SCTP protocol did not     range-check the length of chunks to be created. A local     or remote user could use this to cause a denial of     service.

  - CVE-2018-7480     Hou Tao discovered a double-free flaw in the     blkcg_init_queue() function in block/blk-cgroup.c. A     local user could use this to cause a denial of service     or have other impact.

  - CVE-2018-7566     Fan LongFei reported a race condition in the ALSA     (sound) sequencer core, between write and ioctl     operations. This could lead to an out-of-bounds access     or use-after-free. A local user with access to a     sequencer device could use this for denial of service or     possibly for privilege escalation.

  - CVE-2018-7740     Nic Losby reported that the hugetlbfs filesystem's mmap     operation did not properly range-check the file offset.
    A local user with access to files on a hugetlbfs     filesystem could use this to cause a denial of service.

  - CVE-2018-7757     Jason Yan reported a memory leak in the SAS     (Serial-Attached SCSI) subsystem. A local user on a     system with SAS devices could use this to cause a denial     of service.

  - CVE-2018-7995     Seunghun Han reported a race condition in the x86 MCE     (Machine Check Exception) driver. This is unlikely to     have any security impact.

  - CVE-2018-8087     A memory leak flaw was found in the hwsim_new_radio_nl()     function in the simulated radio testing tool driver for     mac80211, allowing a local user to cause a denial of     service.

  - CVE-2018-8781     Eyal Itkin reported that the udl (DisplayLink) driver's     mmap operation did not properly range-check the file     offset. A local user with access to a udl framebuffer     device could exploit this to overwrite kernel memory,     leading to privilege escalation.

  - CVE-2018-8822     Dr Silvio Cesare of InfoSect reported that the ncpfs     client implementation did not validate reply lengths     from the server. An ncpfs server could use this to cause     a denial of service or remote code execution in the     client.

  - CVE-2018-10323     Wen Xu reported a NULL pointer dereference flaw in the     xfs_bmapi_write() function triggered when mounting and     operating a crafted xfs filesystem image. A local user     able to mount arbitrary filesystems could use this for     denial of service.

  - CVE-2018-1000199     Andy Lutomirski discovered that the ptrace subsystem did     not sufficiently validate hardware breakpoint settings.
    Local users can use this to cause a denial of service,     or possibly for privilege escalation, on x86 (amd64 and     i386) and possibly other architectures.

Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2018-3639)

It was discovered that the netlink subsystem in the Linux kernel did not properly restrict observations of netlink messages to the appropriate net namespace. A local attacker could use this to expose sensitive information (kernel netlink traffic). (CVE-2017-17449)

Tuba Yavuz discovered that a double-free error existed in the USBTV007 driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
(CVE-2017-17975)

It was discovered that a race condition existed in the Device Mapper component of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-18203)

It was discovered that an infinite loop could occur in the madvise(2) implementation in the Linux kernel in certain circumstances. A local attacker could use this to cause a denial of service (system hang).
(CVE-2017-18208)

Silvio Cesare discovered a buffer overwrite existed in the NCPFS implementation in the Linux kernel. A remote attacker controlling a malicious NCPFS server could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-8822).

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

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3653-2 advisory.

  - The __netlink_deliver_tap_skb function in net/netlink/af_netlink.c in the Linux kernel through 4.14.4,     when CONFIG_NLMON is enabled, does not restrict observations of Netlink messages to a single net     namespace, which allows local users to obtain sensitive information by leveraging the CAP_NET_ADMIN     capability to sniff an nlmon interface for all Netlink activity on the system. (CVE-2017-17449)

  - Use-after-free in the usbtv_probe function in drivers/media/usb/usbtv/usbtv-core.c in the Linux kernel     through 4.14.10 allows attackers to cause a denial of service (system crash) or possibly have unspecified     other impact by triggering failure of audio registration, because a kfree of the usbtv data structure     occurs during a usbtv_video_free call, but the usbtv_video_fail label's code attempts to both access and     free this data structure. (CVE-2017-17975)

  - The dm_get_from_kobject function in drivers/md/dm.c in the Linux kernel before 4.14.3 allow local users to     cause a denial of service (BUG) by leveraging a race condition with __dm_destroy during creation and     removal of DM devices. (CVE-2017-18203)

  - The madvise_willneed function in mm/madvise.c in the Linux kernel before 4.14.4 allows local users to     cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping.
    (CVE-2017-18208)

  - Systems with microprocessors utilizing speculative execution and speculative execution of memory reads     before the addresses of all prior memory writes are known may allow unauthorized disclosure of information     to an attacker with local user access via a side-channel analysis, aka Speculative Store Bypass (SSB),     Variant 4. (CVE-2018-3639)

  - Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c in the Linux     kernel through 4.15.11, and in drivers/staging/ncpfs/ncplib_kernel.c in the Linux kernel 4.16-rc through     4.16-rc6, could be exploited by malicious NCPFS servers to crash the kernel or execute code.
    (CVE-2018-8822)

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

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3654-2 advisory.

  - Use-after-free in the usbtv_probe function in drivers/media/usb/usbtv/usbtv-core.c in the Linux kernel     through 4.14.10 allows attackers to cause a denial of service (system crash) or possibly have unspecified     other impact by triggering failure of audio registration, because a kfree of the usbtv data structure     occurs during a usbtv_video_free call, but the usbtv_video_fail label's code attempts to both access and     free this data structure. (CVE-2017-17975)

  - fs/f2fs/extent_cache.c in the Linux kernel before 4.13 mishandles extent trees, which allows local users     to cause a denial of service (BUG) via an application with multiple threads. (CVE-2017-18193)

  - In the Linux kernel before 4.12, Hisilicon Network Subsystem (HNS) does not consider the ETH_SS_PRIV_FLAGS     case when retrieving sset_count data, which allows local users to cause a denial of service (buffer     overflow and memory corruption) or possibly have unspecified other impact, as demonstrated by     incompatibility between hns_get_sset_count and ethtool_get_strings. (CVE-2017-18222)

  - The netfilter subsystem in the Linux kernel through 4.15.7 mishandles the case of a rule blob that     contains a jump but lacks a user-defined chain, which allows local users to cause a denial of service     (NULL pointer dereference) by leveraging the CAP_NET_RAW or CAP_NET_ADMIN capability, related to     arpt_do_table in net/ipv4/netfilter/arp_tables.c, ipt_do_table in net/ipv4/netfilter/ip_tables.c, and     ip6t_do_table in net/ipv6/netfilter/ip6_tables.c. (CVE-2018-1065)

  - A flaw was found in the Linux 4.x kernel's implementation of 32-bit syscall interface for bridging. This     allowed a privileged user to arbitrarily write to a limited range of kernel memory. (CVE-2018-1068)

  - Linux kernel before version 4.16-rc7 is vulnerable to a null pointer dereference in dccp_write_xmit()     function in net/dccp/output.c in that allows a local user to cause a denial of service by a number of     certain crafted system calls. (CVE-2018-1130)

  - Systems with microprocessors utilizing speculative execution and speculative execution of memory reads     before the addresses of all prior memory writes are known may allow unauthorized disclosure of information     to an attacker with local user access via a side-channel analysis, aka Speculative Store Bypass (SSB),     Variant 4. (CVE-2018-3639)

  - In the Linux Kernel before version 4.15.8, 4.14.25, 4.9.87, 4.4.121, 4.1.51, and 3.2.102, an error in the
    _sctp_make_chunk() function (net/sctp/sm_make_chunk.c) when handling SCTP packets length can be     exploited to cause a kernel crash. (CVE-2018-5803)

  - The blkcg_init_queue function in block/blk-cgroup.c in the Linux kernel before 4.11 allows local users to     cause a denial of service (double free) or possibly have unspecified other impact by triggering a creation     failure. (CVE-2018-7480)

  - Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c in the Linux     kernel through 4.15.7 allows local users to cause a denial of service (memory consumption) via many read     accesses to files in the /sys/class/sas_phy directory, as demonstrated by the     /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file. (CVE-2018-7757)

  - Race condition in the store_int_with_restart() function in arch/x86/kernel/cpu/mcheck/mce.c in the Linux     kernel through 4.15.7 allows local users to cause a denial of service (panic) by leveraging root access to     write to the check_interval file in a /sys/devices/system/machinecheck/machinecheck<cpu number> directory.
    NOTE: a third party has indicated that this report is not security relevant (CVE-2018-7995)

  - The udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c at the Linux kernel version 3.4 and up to and     including 4.15 has an integer-overflow vulnerability allowing local users with access to the udldrmfb     driver to obtain full read and write permissions on kernel physical pages, resulting in a code execution     in kernel space. (CVE-2018-8781)

  - Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c in the Linux     kernel through 4.15.11, and in drivers/staging/ncpfs/ncplib_kernel.c in the Linux kernel 4.16-rc through     4.16-rc6, could be exploited by malicious NCPFS servers to crash the kernel or execute code.
    (CVE-2018-8822)

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

ID	Name	Product	Family	Published	Updated	Severity
108648	SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2018:0785-1)	Nessus	SuSE Local Security Checks	3/27/2018	9/10/2019	high
110048	Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-3654-1)	Nessus	Ubuntu Local Security Checks	5/23/2018	1/9/2024	high
108577	openSUSE Security Update : the Linux Kernel (openSUSE-2018-292)	Nessus	SuSE Local Security Checks	3/23/2018	1/19/2021	critical
110052	Ubuntu 17.10 : Linux kernel (Raspberry Pi 2) vulnerabilities (USN-3657-1)	Nessus	Ubuntu Local Security Checks	5/23/2018	5/11/2023	high
108649	SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2018:0786-1)	Nessus	SuSE Local Security Checks	3/27/2018	9/10/2019	critical
110051	Ubuntu 16.04 LTS : Linux kernel (Raspberry Pi 2, Snapdragon) vulnerabilities (USN-3656-1)	Nessus	Ubuntu Local Security Checks	5/23/2018	1/9/2024	high
124977	EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1524)	Nessus	Huawei Local Security Checks	5/14/2019	5/20/2022	high
109518	Debian DSA-4188-1 : linux - security update (Spectre)	Nessus	Debian Local Security Checks	5/2/2018	7/15/2019	high
110046	Ubuntu 17.10 : Linux kernel vulnerabilities (USN-3653-1) (Spectre)	Nessus	Ubuntu Local Security Checks	5/23/2018	5/11/2023	high
110047	Ubuntu 16.04 LTS : Linux kernel (HWE) vulnerabilities (USN-3653-2)	Nessus	Ubuntu Local Security Checks	5/23/2018	1/9/2024	high
110049	Ubuntu 14.04 LTS : Linux kernel (Xenial HWE) vulnerabilities (USN-3654-2)	Nessus	Ubuntu Local Security Checks	5/23/2018	1/9/2024	high

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