The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:2077 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):

    * An use-after-free flaw was found in the Linux kernel which enables a race condition in the L2TPv3 IP     Encapsulation feature. A local user could use this flaw to escalate their privileges or crash the system.
    (CVE-2016-10200, Important)

    * A flaw was found that can be triggered in keyring_search_iterator in keyring.c if type->match is NULL. A     local user could use this flaw to crash the system or, potentially, escalate their privileges.
    (CVE-2017-2647, Important)

    * It was found that the NFSv4 server in the Linux kernel did not properly validate layout type when     processing NFSv4 pNFS LAYOUTGET and GETDEVICEINFO operands. A remote attacker could use this flaw to soft-     lockup the system and thus cause denial of service. (CVE-2017-8797, Important)

    This update also fixes multiple Moderate and Low impact security issues:

    * CVE-2015-8839, CVE-2015-8970, CVE-2016-9576, CVE-2016-7042, CVE-2016-7097, CVE-2016-8645, CVE-2016-9576,     CVE-2016-9588, CVE-2016-9806, CVE-2016-10088, CVE-2016-10147, CVE-2017-2596, CVE-2017-2671, CVE-2017-5970,     CVE-2017-6001, CVE-2017-6951, CVE-2017-7187, CVE-2017-7616, CVE-2017-7889, CVE-2017-8890, CVE-2017-9074,     CVE-2017-8890, CVE-2017-9075, CVE-2017-8890, CVE-2017-9076, CVE-2017-8890, CVE-2017-9077, CVE-2017-9242,     CVE-2014-7970, CVE-2014-7975, CVE-2016-6213, CVE-2016-9604, CVE-2016-9685

    Documentation for these issues is available from the Release Notes document linked from the References     section.

    Red Hat would like to thank Igor Redko (Virtuozzo) and Andrey Ryabinin (Virtuozzo) for reporting     CVE-2017-2647; Igor Redko (Virtuozzo) and Vasily Averin (Virtuozzo) for reporting CVE-2015-8970; Marco     Grassi for reporting CVE-2016-8645; and Dmitry Vyukov (Google Inc.) for reporting CVE-2017-2596. The     CVE-2016-7042 issue was discovered by Ondrej Kozina (Red Hat); the CVE-2016-7097 issue was discovered by     Andreas Gruenbacher (Red Hat) and Jan Kara (SUSE); the CVE-2016-6213 and CVE-2016-9685 issues were     discovered by Qian Cai (Red Hat); and the CVE-2016-9604 issue was discovered by David Howells (Red Hat).

    Additional Changes:

    For detailed information on other changes in this release, see the Red Hat Enterprise Linux 7.4 Release     Notes linked from 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.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:2669 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):

    * A race condition was found in the Linux kernel, present since v3.14-rc1 through v4.12. The race happens     between threads of inotify_handle_event() and vfs_rename() while running the rename operation against the     same file. As a result of the race the next slab data or the slab's free list pointer can be corrupted     with attacker-controlled data, which may lead to the privilege escalation. (CVE-2017-7533, Important)

    * It was found that the NFSv4 server in the Linux kernel did not properly validate layout type when     processing NFSv4 pNFS LAYOUTGET and GETDEVICEINFO operands. A remote attacker could use this flaw to soft-     lockup the system and thus cause denial of service. (CVE-2017-8797, Important)

    This update also fixes multiple Moderate and Low impact security issues:

    CVE-2017-8797 CVE-2015-8839 CVE-2016-9576 CVE-2016-7042 CVE-2016-7097 CVE-2016-8645 CVE-2016-9576     CVE-2016-9806 CVE-2016-10088 CVE-2017-2671 CVE-2017-5970 CVE-2017-6001 CVE-2017-6951 CVE-2017-7187     CVE-2017-7889 CVE-2017-8890 CVE-2017-9074 CVE-2017-8890 CVE-2017-9075 CVE-2017-8890 CVE-2017-9076     CVE-2017-8890 CVE-2017-9077 CVE-2016-9604 CVE-2016-9685

    Documentation for these issues are available from the Technical Notes document linked to in the References     section.

    Red Hat would like to thank Leilei Lin (Alibaba Group), Fan Wu (The University of Hong Kong), and Shixiong     Zhao (The University of Hong Kong) for reporting CVE-2017-7533 and Marco Grassi for reporting     CVE-2016-8645. The CVE-2016-7042 issue was discovered by Ondrej Kozina (Red Hat); the CVE-2016-7097 issue     was discovered by Andreas Gruenbacher (Red Hat) and Jan Kara (SUSE); the CVE-2016-9604 issue was     discovered by David Howells (Red Hat); and the CVE-2016-9685 issue was discovered by Qian Cai (Red Hat).

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.

The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux kernel through 4.11.1 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.
(CVE-2017-9077)

Impact

This vulnerability allows a disruption of service and possibly an unauthorized disclosure of information.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002717 advisory.

    The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux kernel through 4.11.1 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.

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

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

It was discovered that the stack guard page for processes in the Linux kernel was not sufficiently large enough to prevent overlapping with the heap. An attacker could leverage this with another vulnerability to execute arbitrary code and gain administrative privileges (CVE-2017-1000364)

Roee Hay discovered that the parallel port printer driver in the Linux kernel did not properly bounds check passed arguments. A local attacker with write access to the kernel command line arguments could use this to execute arbitrary code. (CVE-2017-1000363)

A double free bug was discovered in the IPv4 stack of the Linux kernel. An attacker could use this to cause a denial of service (system crash). (CVE-2017-8890)

Andrey Konovalov discovered an IPv6 out-of-bounds read error in the Linux kernel's IPv6 stack. A local attacker could cause a denial of service or potentially other unspecified problems. (CVE-2017-9074)

Andrey Konovalov discovered a flaw in the handling of inheritance in the Linux kernel's IPv6 stack. A local user could exploit this issue to cause a denial of service or possibly other unspecified problems.
(CVE-2017-9075)

It was discovered that dccp v6 in the Linux kernel mishandled inheritance. A local attacker could exploit this issue to cause a denial of service or potentially other unspecified problems.
(CVE-2017-9076)

It was discovered that the transmission control protocol (tcp) v6 in the Linux kernel mishandled inheritance. A local attacker could exploit this issue to cause a denial of service or potentially other unspecified problems. (CVE-2017-9077)

Jann Horn discovered that bpf in Linux kernel does not restrict the output of the print_bpf_insn function. A local attacker could use this to obtain sensitive address information. (CVE-2017-9150)

It was discovered that the IPv6 stack was doing over write consistency check after the data was actually overwritten. A local attacker could exploit this flaw to cause a denial of service (system crash).
(CVE-2017-9242).

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.

It was discovered that a use-after-free flaw existed in the filesystem encryption subsystem in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-7374)

It was discovered that the stack guard page for processes in the Linux kernel was not sufficiently large enough to prevent overlapping with the heap. An attacker could leverage this with another vulnerability to execute arbitrary code and gain administrative privileges (CVE-2017-1000364)

Roee Hay discovered that the parallel port printer driver in the Linux kernel did not properly bounds check passed arguments. A local attacker with write access to the kernel command line arguments could use this to execute arbitrary code. (CVE-2017-1000363)

Ingo Molnar discovered that the VideoCore DRM driver in the Linux kernel did not return an error after detecting certain overflows. A local attacker could exploit this issue to cause a denial of service (OOPS). (CVE-2017-5577)

A double free bug was discovered in the IPv4 stack of the Linux kernel. An attacker could use this to cause a denial of service (system crash). (CVE-2017-8890)

Andrey Konovalov discovered an IPv6 out-of-bounds read error in the Linux kernel's IPv6 stack. A local attacker could cause a denial of service or potentially other unspecified problems. (CVE-2017-9074)

Andrey Konovalov discovered a flaw in the handling of inheritance in the Linux kernel's IPv6 stack. A local user could exploit this issue to cause a denial of service or possibly other unspecified problems.
(CVE-2017-9075)

It was discovered that dccp v6 in the Linux kernel mishandled inheritance. A local attacker could exploit this issue to cause a denial of service or potentially other unspecified problems.
(CVE-2017-9076)

It was discovered that the transmission control protocol (tcp) v6 in the Linux kernel mishandled inheritance. A local attacker could exploit this issue to cause a denial of service or potentially other unspecified problems. (CVE-2017-9077)

It was discovered that the IPv6 stack was doing over write consistency check after the data was actually overwritten. A local attacker could exploit this flaw to cause a denial of service (system crash).
(CVE-2017-9242).

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 OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2017-0126 for details.

The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2017-0145 for details.

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

  - CVE-2016-5243: The tipc_nl_compat_link_dump function in     net/tipc/netlink_compat.c in the Linux kernel did not     properly copy a certain string, which allowed local     users to obtain sensitive information from kernel stack     memory by reading a Netlink message (bnc#983212)

  - CVE-2016-10200: Race condition in the L2TPv3 IP     Encapsulation feature in the Linux kernel allowed local     users to gain privileges or cause a denial of service     (use-after-free) by making multiple bind system calls     without properly ascertaining whether a socket has the     SOCK_ZAPPED status, related to net/l2tp/l2tp_ip.c and     net/l2tp/l2tp_ip6.c (bnc#1028415)

  - CVE-2017-2647: The KEYS subsystem in the Linux kernel     allowed local users to gain privileges or cause a denial     of service (NULL pointer dereference and system crash)     via vectors involving a NULL value for a certain match     field, related to the keyring_search_iterator function     in keyring.c (bsc#1030593).

  - CVE-2017-2671: The ping_unhash function in     net/ipv4/ping.c in the Linux kernel was too late in     obtaining a certain lock and consequently could not     ensure that disconnect function calls are safe, which     allowed local users to cause a denial of service (panic)     by leveraging access to the protocol value of     IPPROTO_ICMP in a socket system call (bnc#1031003)

  - CVE-2017-5669: The do_shmat function in ipc/shm.c in the     Linux kernel did not restrict the address calculated by     a certain rounding operation, which allowed local users     to map page zero, and consequently bypass a protection     mechanism that exists for the mmap system call, by     making crafted shmget and shmat system calls in a     privileged context (bnc#1026914)

  - CVE-2017-5970: The ipv4_pktinfo_prepare function in     net/ipv4/ip_sockglue.c in the Linux kernel allowed     attackers to cause a denial of service (system crash)     via (1) an application that made crafted system calls or     possibly (2) IPv4 traffic with invalid IP options     (bsc#1024938)

  - CVE-2017-5986: Race condition in the     sctp_wait_for_sndbuf function in net/sctp/socket.c in     the Linux kernel allowed local users to cause a denial     of service (assertion failure and panic) via a     multithreaded application that peels off an association     in a certain buffer-full state (bsc#1025235)

  - CVE-2017-6074: The dccp_rcv_state_process function in     net/dccp/input.c in the Linux kernel mishandled     DCCP_PKT_REQUEST packet data structures in the LISTEN     state, which allowed local users to obtain root     privileges or cause a denial of service (double free)     via an application that made an IPV6_RECVPKTINFO     setsockopt system call (bnc#1026024)

  - CVE-2017-6214: The tcp_splice_read function in     net/ipv4/tcp.c in the Linux kernel allowed remote     attackers to cause a denial of service (infinite loop     and soft lockup) via vectors involving a TCP packet with     the URG flag (bnc#1026722)

  - CVE-2017-6348: The hashbin_delete function in     net/irda/irqueue.c in the Linux kernel improperly     managed lock dropping, which allowed local users to     cause a denial of service (deadlock) via crafted     operations on IrDA devices (bnc#1027178)

  - CVE-2017-6353: net/sctp/socket.c in the Linux kernel did     not properly restrict association peel-off operations     during certain wait states, which allowed local users to     cause a denial of service (invalid unlock and double     free) via a multithreaded application. NOTE: this     vulnerability exists because of an incorrect fix for     CVE-2017-5986 (bnc#1027066)

  - CVE-2017-6951: The keyring_search_aux function in     security/keys/keyring.c in the Linux kernel allowed     local users to cause a denial of service (NULL pointer     dereference and OOPS) via a request_key system call for     the 'dead' type (bsc#1029850).

  - CVE-2017-7184: The xfrm_replay_verify_len function in     net/xfrm/xfrm_user.c in the Linux kernel did not     validate certain size data after an XFRM_MSG_NEWAE     update, which allowed local users to obtain root     privileges or cause a denial of service (heap-based     out-of-bounds access) by leveraging the CAP_NET_ADMIN     capability (bsc#1030573)

  - CVE-2017-7187: The sg_ioctl function in     drivers/scsi/sg.c in the Linux kernel allowed local     users to cause a denial of service (stack-based buffer     overflow) or possibly have unspecified other impact via     a large command size in an SG_NEXT_CMD_LEN ioctl call,     leading to out-of-bounds write access in the sg_write     function (bnc#1030213)

  - CVE-2017-7261: The vmw_surface_define_ioctl function in     drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux     kernel did not check for a zero value of certain levels     data, which allowed local users to cause a denial of     service (ZERO_SIZE_PTR dereference, and GPF and possibly     panic) via a crafted ioctl call for a /dev/dri/renderD*     device (bnc#1031052)

  - CVE-2017-7294: The vmw_surface_define_ioctl function in     drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux     kernel did not validate addition of certain levels data,     which allowed local users to trigger an integer overflow     and out-of-bounds write, and cause a denial of service     (system hang or crash) or possibly gain privileges, via     a crafted ioctl call for a /dev/dri/renderD* device     (bnc#1031440)

  - CVE-2017-7308: The packet_set_ring function in     net/packet/af_packet.c in the Linux kernel did not     properly validate certain block-size data, which allowed     local users to cause a denial of service (overflow) or     possibly have unspecified other impact via crafted     system calls (bnc#1031579)

  - CVE-2017-7482: Several missing length checks ticket     decode allowing for information leak or potentially code     execution (bsc#1046107).

  - CVE-2017-7487: The ipxitf_ioctl function in     net/ipx/af_ipx.c in the Linux kernel mishandled     reference counts, which allowed local users to cause a     denial of service (use-after-free) or possibly have     unspecified other impact via a failed SIOCGIFADDR ioctl     call for an IPX interface (bsc#1038879).

  - CVE-2017-7533: Race condition in the fsnotify     implementation in the Linux kernel allowed local users     to gain privileges or cause a denial of service (memory     corruption) via a crafted application that leverages     simultaneous execution of the inotify_handle_event and     vfs_rename functions (bnc#1049483 1050677 ).

  - CVE-2017-7542: The ip6_find_1stfragopt function in     net/ipv6/output_core.c in the Linux kernel allowed local     users to cause a denial of service (integer overflow and     infinite loop) by leveraging the ability to open a raw     socket (bnc#1049882).

  - CVE-2017-7616: Incorrect error handling in the     set_mempolicy and mbind compat syscalls in     mm/mempolicy.c in the Linux kernel allowed local users     to obtain sensitive information from uninitialized stack     data by triggering failure of a certain bitmap operation     (bsc#1033336)

  - CVE-2017-8831: The saa7164_bus_get function in     drivers/media/pci/saa7164/saa7164-bus.c in the Linux     kernel allowed local users to cause a denial of service     (out-of-bounds array access) or possibly have     unspecified other impact by changing a certain     sequence-number value, aka a 'double fetch'     vulnerability. This requires a malicious PCI Card.
    (bnc#1037994).

  - CVE-2017-8890: The inet_csk_clone_lock function in     net/ipv4/inet_connection_sock.c in the Linux kernel     allowed attackers to cause a denial of service (double     free) or possibly have unspecified other impact by     leveraging use of the accept system call (bsc#1038544).

  - CVE-2017-8924: The edge_bulk_in_callback function in     drivers/usb/serial/io_ti.c in the Linux kernel allowed     local users to obtain sensitive information (in the     dmesg ringbuffer and syslog) from uninitialized kernel     memory by using a crafted USB device (posing as an io_ti     USB serial device) to trigger an integer underflow     (bnc#1037182).

  - CVE-2017-8925: The omninet_open function in     drivers/usb/serial/omninet.c in the Linux kernel allowed     local users to cause a denial of service (tty     exhaustion) by leveraging reference count mishandling     (bnc#1038981).

  - CVE-2017-9074: The IPv6 fragmentation implementation in     the Linux kernel did not consider that the nexthdr field     may be associated with an invalid option, which allowed     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 (bnc#1039882).

  - CVE-2017-9075: The sctp_v6_create_accept_sk function in     net/sctp/ipv6.c in the Linux kernel mishandled     inheritance, which allowed 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     (bsc#1039883).

  - CVE-2017-9076: The dccp_v6_request_recv_sock function in     net/dccp/ipv6.c in the Linux kernel mishandled     inheritance, which allowed 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     (bnc#1039885).

  - CVE-2017-9077: The tcp_v6_syn_recv_sock function in     net/ipv6/tcp_ipv6.c in the Linux kernel mishandled     inheritance, which allowed 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     (bsc#1040069).

  - CVE-2017-9242: The __ip6_append_data function in     net/ipv6/ip6_output.c in the Linux kernel was too late     in checking whether an overwrite of an skb data     structure may occur, which allowed local users to cause     a denial of service (system crash) via crafted system     calls (bnc#1041431).

  - CVE-2017-10661: Race condition in fs/timerfd.c in the     Linux kernel allowed local users to gain privileges or     cause a denial of service (list corruption or     use-after-free) via simultaneous file-descriptor     operations that leverage improper might_cancel queueing     (bnc#1053152).

  - CVE-2017-11176: The mq_notify function in the Linux     kernel did not set the sock pointer to NULL upon entry     into the retry logic. During a user-space close of a     Netlink socket, it allowed attackers to cause a denial     of service (use-after-free) or possibly have unspecified     other impact (bnc#1048275).

  - CVE-2017-11473: Buffer overflow in the     mp_override_legacy_irq() function in     arch/x86/kernel/acpi/boot.c in the Linux kernel allowed     local users to gain privileges via a crafted ACPI table     (bnc#1049603).

  - CVE-2017-12762: In /drivers/isdn/i4l/isdn_net.c: A     user-controlled buffer is copied into a local buffer of     constant size using strcpy without a length check which     can cause a buffer overflow. (bnc#1053148).

  - CVE-2017-14051: An integer overflow in the     qla2x00_sysfs_write_optrom_ctl function in     drivers/scsi/qla2xxx/qla_attr.c in the Linux kernel     allowed local users to cause a denial of service (memory     corruption and system crash) by leveraging root access     (bnc#1056588).

  - CVE-2017-1000112: Fixed a race condition in net-packet     code that could have been exploited by unprivileged     users to gain root access. (bsc#1052311).

  - CVE-2017-1000363: Linux drivers/char/lp.c Out-of-Bounds     Write. Due to a missing bounds check, and the fact that     parport_ptr integer is static, a 'secure boot' kernel     command line adversary could have overflowed the     parport_nr array in the following code (bnc#1039456).

  - CVE-2017-1000365: The Linux Kernel imposes a size     restriction on the arguments and environmental strings     passed through RLIMIT_STACK/RLIM_INFINITY (1/4 of the     size), but did not take the argument and environment     pointers into account, which allowed attackers to bypass     this limitation (bnc#1039354).

  - CVE-2017-1000380: sound/core/timer.c in the Linux kernel     was vulnerable to a data race in the ALSA /dev/snd/timer     driver resulting in local users being able to read     information belonging to other users, i.e.,     uninitialized memory contents may be disclosed when a     read and an ioctl happen at the same time (bnc#1044125).

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.

An update for kernel is now available for Red Hat Enterprise Linux 6.

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) :

* An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor's data cache even for speculatively executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use this flaw to read privileged memory by conducting targeted cache side-channel attacks. (CVE-2018-3639, PowerPC)

* kernel: net/packet: overflow in check for priv area size (CVE-2017-7308)

* kernel: AIO interface didn't use rw_verify_area() for checking mandatory locking on files and size of access (CVE-2012-6701)

* kernel: AIO write triggers integer overflow in some protocols (CVE-2015-8830)

* kernel: NULL pointer dereference via keyctl (CVE-2016-8650)

* kernel: ping socket / AF_LLC connect() sin_family race (CVE-2017-2671)

* kernel: Race condition between multiple sys_perf_event_open() calls (CVE-2017-6001)

* kernel: Incorrect error handling in the set_mempolicy and mbind compat syscalls in mm/mempolicy.c (CVE-2017-7616)

* kernel: mm subsystem does not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism (CVE-2017-7889)

* kernel: Double free in the inet_csk_clone_lock function in net/ipv4/ inet_connection_sock.c (CVE-2017-8890)

* kernel: net: sctp_v6_create_accept_sk function mishandles inheritance (CVE-2017-9075)

* kernel: net: IPv6 DCCP implementation mishandles inheritance (CVE-2017-9076)

* kernel: net: tcp_v6_syn_recv_sock function mishandles inheritance (CVE-2017-9077)

* kernel: memory leak when merging buffers in SCSI IO vectors (CVE-2017-12190)

* kernel: vfs: BUG in truncate_inode_pages_range() and fuse client (CVE-2017-15121)

* kernel: Race condition in drivers/md/dm.c:dm_get_from_kobject() allows local users to cause a denial of service (CVE-2017-18203)

* kernel: a NULL pointer dereference in net/dccp/output.c:dccp_write_xmit() leads to a system crash (CVE-2018-1130)

* kernel: Missing length check of payload in net/sctp/ sm_make_chunk.c:_sctp_make_chunk() function allows denial of service (CVE-2018-5803)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat would like to thank Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google Project Zero) for reporting CVE-2018-3639; Vitaly Mayatskih for reporting CVE-2017-12190; and Evgenii Shatokhin (Virtuozzo Team) for reporting CVE-2018-1130. The CVE-2017-15121 issue was discovered by Miklos Szeredi (Red Hat).

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.10 Release Notes and Red Hat Enterprise Linux 6.10 Technical Notes linked from the References section.

ID	Name	Product	Family	Published	Updated	Severity
102151	RHEL 7 : kernel-rt (RHSA-2017:2077)	Nessus	Red Hat Local Security Checks	8/3/2017	3/24/2025	high
103046	RHEL 6 : kernel-rt (RHSA-2017:2669)	Nessus	Red Hat Local Security Checks	9/8/2017	4/15/2025	high
118685	F5 Networks BIG-IP : Linux kernel vulnerability (K61429540)	Nessus	F5 Networks Local Security Checks	11/2/2018	11/2/2023	high
287128	Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002717)	Nessus	Unity Linux Local Security Checks	1/15/2026	1/16/2026	high
100922	Ubuntu 17.04 : linux, linux-meta vulnerabilities (USN-3324-1) (Stack Clash)	Nessus	Ubuntu Local Security Checks	6/20/2017	12/15/2025	high
100924	Ubuntu 16.10 : linux, linux-meta vulnerabilities (USN-3326-1) (Stack Clash)	Nessus	Ubuntu Local Security Checks	6/20/2017	12/15/2025	high
102064	OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0126) (Stack Clash)	Nessus	OracleVM Local Security Checks	7/31/2017	12/4/2025	critical
102774	OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0145) (Stack Clash)	Nessus	OracleVM Local Security Checks	8/25/2017	11/25/2025	critical
103354	SUSE SLES11 Security Update : kernel (SUSE-SU-2017:2525-1) (Stack Clash)	Nessus	SuSE Local Security Checks	9/20/2017	11/20/2025	critical
110645	CentOS 6 : kernel (CESA-2018:1854) (Spectre)	Nessus	CentOS Local Security Checks	6/22/2018	9/17/2024	high

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