The SUSE Linux Enterprise 12 SP1 kernel was updated to 3.12.51 to receive various security and bugfixes.

Following features were added :

  - hwrng: Add a driver for the hwrng found in power7+     systems (fate#315784).

Following security bugs were fixed :

  - CVE-2015-8215: net/ipv6/addrconf.c in the IPv6 stack in     the Linux kernel did not validate attempted changes to     the MTU value, which allowed context-dependent attackers     to cause a denial of service (packet loss) via a value     that is (1) smaller than the minimum compliant value or     (2) larger than the MTU of an interface, as demonstrated     by a Router Advertisement (RA) message that is not     validated by a daemon, a different vulnerability than     CVE-2015-0272. (bsc#955354)

  - CVE-2015-5156: The virtnet_probe function in     drivers/net/virtio_net.c in the Linux kernel attempted     to support a FRAGLIST feature without proper memory     allocation, which allowed guest OS users to cause a     denial of service (buffer overflow and memory     corruption) via a crafted sequence of fragmented packets     (bnc#940776).

  - CVE-2015-7872: The key_gc_unused_keys function in     security/keys/gc.c in the Linux kernel allowed local     users to cause a denial of service (OOPS) via crafted     keyctl commands (bnc#951440).

  - CVE-2015-7799: The slhc_init function in     drivers/net/slip/slhc.c in the Linux kernel did not     ensure that certain slot numbers are valid, which     allowed local users to cause a denial of service (NULL     pointer dereference and system crash) via a crafted     PPPIOCSMAXCID ioctl call (bnc#949936).

  - CVE-2015-2925: The prepend_path function in fs/dcache.c     in the Linux kernel did not properly handle rename     actions inside a bind mount, which allowed local users     to bypass an intended container protection mechanism by     renaming a directory, related to a 'double-chroot attack     (bnc#926238).

  - CVE-2015-7990: RDS: Verify the underlying transport     exists before creating a connection, preventing possible     DoS (bsc#952384).

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 4.2.6 stable update contains a number of important fixes across the tree. kernel-4.2.6-300.fc23 - Fix incorrect size calculations in megaraid with 64K pages (rhbz 1269300) - CVE-2015-8104 kvm: DoS infinite loop in microcode DB exception (rhbz 1278496 1279691) - CVE-2015-5307 kvm: DoS infinite loop in microcode AC exception (rhbz 1277172 1279688)

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

The SUSE Linux Enterprise 12 kernel was updated to 3.12.51 to receive various security and bugfixes.

Following security bugs were fixed :

  - CVE-2015-7799: The slhc_init function in     drivers/net/slip/slhc.c in the Linux kernel did not     ensure that certain slot numbers were valid, which     allowed local users to cause a denial of service (NULL     pointer dereference and system crash) via a crafted     PPPIOCSMAXCID ioctl call (bnc#949936).

  - CVE-2015-5283: The sctp_init function in     net/sctp/protocol.c in the Linux kernel had an incorrect     sequence of protocol-initialization steps, which allowed     local users to cause a denial of service (panic or     memory corruption) by creating SCTP sockets before all     of the steps have finished (bnc#947155).

  - CVE-2015-2925: The prepend_path function in fs/dcache.c     in the Linux kernel did not properly handle rename     actions inside a bind mount, which allowed local users     to bypass an intended container protection mechanism by     renaming a directory, related to a 'double-chroot attack     (bnc#926238).

  - CVE-2015-8104: The KVM subsystem in the Linux kernel     allowed guest OS users to cause a denial of service     (host OS panic or hang) by triggering many #DB (aka     Debug) exceptions, related to svm.c (bnc#954404).

  - CVE-2015-5307: The KVM subsystem in the Linux kernel     allowed guest OS users to cause a denial of service     (host OS panic or hang) by triggering many #AC (aka     Alignment Check) exceptions, related to svm.c and vmx.c     (bnc#953527).

  - CVE-2015-7990: RDS: There was no verification that an     underlying transport exists when creating a connection,     causing usage of a NULL pointer (bsc#952384).

  - CVE-2015-7872: The key_gc_unused_keys function in     security/keys/gc.c in the Linux kernel allowed local     users to cause a denial of service (OOPS) via crafted     keyctl commands (bnc#951440).

  - CVE-2015-0272: Missing checks allowed remote attackers     to cause a denial of service (IPv6 traffic disruption)     via a crafted MTU value in an IPv6 Router Advertisement     (RA) message, a different vulnerability than     CVE-2015-8215 (bnc#944296).

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 4.2.6 stable update contains a number of important fixes across the tree. kernel-4.2.6-200.fc22 - Fix incorrect size calculations in megaraid with 64K pages (rhbz 1269300) - CVE-2015-8104 kvm: DoS infinite loop in microcode DB exception (rhbz 1278496 1279691) - CVE-2015-5307 kvm: DoS infinite loop in microcode AC exception (rhbz 1277172 1279688)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora 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 flaw was found in the way the Linux kernel handled     IRET faults during the processing of NMIs. An     unprivileged, local user could use this flaw to crash     the system or, potentially (although highly unlikely),     escalate their privileges on the system.(CVE-2015-5157)

  - A denial of service vulnerability was found in the     WhiteHEAT USB Serial Driver (whiteheat_attach function     in drivers/usb/serial/whiteheat.c). In the driver, the     COMMAND_PORT variable was hard coded and set to 4 (5th     element). The driver assumed that the number of ports     would always be 5 and used port number 5 as the command     port. However, when using a USB device in which the     number of ports was set to a number less than 5 (for     example, 3), the driver triggered a kernel NULL-pointer     dereference. A non-privileged attacker could use this     flaw to panic the host.(CVE-2015-5257)

  - A NULL pointer dereference flaw was found in the SCTP     implementation. A local user could use this flaw to     cause a denial of service on the system by triggering a     kernel panic when creating multiple sockets in parallel     while the system did not have the SCTP module     loaded.(CVE-2015-5283)

  - It was found that the x86 ISA (Instruction Set     Architecture) is prone to a denial of service attack     inside a virtualized environment in the form of an     infinite loop in the microcode due to the way     (sequential) delivering of benign exceptions such as     #AC (alignment check exception) is handled. A     privileged user inside a guest could use this flaw to     create denial of service conditions on the host     kernel.(CVE-2015-5307)

  - A flaw was found in the way the Linux kernel's     networking implementation handled UDP packets with     incorrect checksum values. A remote attacker could     potentially use this flaw to trigger an infinite loop     in the kernel, resulting in a denial of service on the     system, or cause a denial of service in applications     using the edge triggered epoll     functionality.(CVE-2015-5364)

  - A flaw was found in the way the Linux kernel's     networking implementation handled UDP packets with     incorrect checksum values. A remote attacker could     potentially use this flaw to trigger an infinite loop     in the kernel, resulting in a denial of service on the     system, or cause a denial of service in applications     using the edge triggered epoll     functionality.(CVE-2015-5366)

  - A cross-boundary flaw was discovered in the Linux     kernel software raid driver. The driver accessed a     disabled bitmap where only the first byte of the buffer     was initialized to zero. This meant that the rest of     the request (up to 4095 bytes) was left and copied into     user space. An attacker could use this flaw to read     private information from user space that would not     otherwise have been accessible.(CVE-2015-5697)

  - An integer-overflow vulnerability was found in the scsi     block-request handling code in function start_req(). A     local attacker could use specially crafted IOV requests     to overflow a counter used in bio_map_user_iov()'s page     calculation, and write past the end of the array that     contains kernel-page pointers.(CVE-2015-5707)

  - A flaw was found in the way the Linux kernel's vhost     driver treated userspace provided log file descriptor     when processing the VHOST_SET_LOG_FD ioctl command. The     file descriptor was never released and continued to     consume kernel memory. A privileged local user with     access to the /dev/vhost-net files could use this flaw     to create a denial-of-service attack.(CVE-2015-6252)

  - A flaw was found in the way the Linux kernel's perf     subsystem retrieved userlevel stack traces on PowerPC     systems. A local, unprivileged user could use this flaw     to cause a denial of service on the system by creating     a special stack layout that would force the     perf_callchain_user_64() function into an infinite     loop.(CVE-2015-6526)

  - A NULL-pointer dereference vulnerability was discovered     in the Linux kernel. The kernel's Reliable Datagram     Sockets (RDS) protocol implementation did not verify     that an underlying transport existed before creating a     connection to a remote server. A local system user     could exploit this flaw to crash the system by creating     sockets at specific times to trigger a NULL pointer     dereference.(CVE-2015-6937)

  - Multiple race conditions in the Advanced Union     Filesystem (aufs) aufs3-mmap.patch and aufs4-mmap.patch     patches for the Linux kernel 3.x and 4.x allow local     users to cause a denial of service (use-after-free and     BUG) or possibly gain privileges via a (1) madvise or     (2) msync system call, related to mm/madvise.c and     mm/msync.c.(CVE-2015-7312)

  - A divide-by-zero flaw was discovered in the Linux     kernel built with KVM virtualization     support(CONFIG_KVM). The flaw occurs in the KVM     module's Programmable Interval Timer(PIT) emulation,     when PIT counters for channel 1 or 2 are set to zero(0)     and a privileged user inside the guest attempts to read     these counters. A privileged guest user with access to     PIT I/O ports could exploit this issue to crash the     host kernel (denial of service).(CVE-2015-7513)

  - An out-of-bounds memory access flaw was found in the     Linux kernel's aiptek USB tablet driver (aiptek_probe()     function in drivers/input/tablet/aiptek.c). The driver     assumed that the interface always had at least one     endpoint. By using a specially crafted USB device with     no endpoints on one of its interfaces, an unprivileged     user with physical access to the system could trigger a     kernel NULL pointer dereference, causing the system to     panic.(CVE-2015-7515)

  - 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-2015-7550)

  - A flaw was found in the way the Linux kernel visor     driver handles certain invalid USB device descriptors.
    The driver assumes that the device always has at least     one bulk OUT endpoint. By using a specially crafted USB     device (without a bulk OUT endpoint), an unprivileged     user with physical access could trigger a kernel     NULL-pointer dereference and cause a system panic     (denial of service).(CVE-2015-7566)

  - A race condition flaw was found in the way the Linux     kernel's IPC subsystem initialized certain fields in an     IPC object structure that were later used for     permission checking before inserting the object into a     globally visible list. A local, unprivileged user could     potentially use this flaw to elevate their privileges     on the system.(CVE-2015-7613)

  - A flaw was discovered in the Linux kernel where issuing     certain ioctl() -s commands to the '/dev/ppp' device     file could lead to a NULL pointer dereference. A     privileged user could use this flaw to cause a kernel     crash and denial of service.(CVE-2015-7799)

  - It was found that the Linux kernel's keys subsystem did     not correctly garbage collect uninstantiated keyrings.
    A local attacker could use this flaw to crash the     system or, potentially, escalate their privileges on     the system.(CVE-2015-7872)

  - A denial of service flaw was discovered in the Linux     kernel, where a race condition caused a NULL pointer     dereference in the RDS socket-creation code. A local     attacker could use this flaw to create a situation in     which a NULL pointer crashed the kernel.(CVE-2015-7990)

  - It was found that the x86 ISA (Instruction Set     Architecture) is prone to a denial of service attack     inside a virtualized environment in the form of an     infinite loop in the microcode due to the way     (sequential) delivering of benign exceptions such as     #DB (debug exception) is handled. A privileged user     inside a guest could use this flaw to create denial of     service conditions on the host kernel.(CVE-2015-8104)

  - It was found that the Linux kernel's IPv6 network stack     did not properly validate the value of the MTU variable     when it was set. A remote attacker could potentially     use this flaw to disrupt a target system's networking     (packet loss) by setting an invalid MTU value, for     example, via a NetworkManager daemon that is processing     router advertisement packets running on the target     system.(CVE-2015-8215)

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 Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002345 advisory.

    The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel through 4.2.3 does not ensure that     certain slot numbers are valid, which allows local users to cause a denial of service (NULL pointer     dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call.

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.

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2841-1 advisory.

    Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly     catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a     denial of service (system crash) in the host OS. (CVE-2015-8104)

     discovered that the ppp implementation in the Linux kernel did not ensure that certain slot     numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of     service (system crash). (CVE-2015-7799)

    It was discovered that the driver for Digi Neo and ClassicBoard devices did not properly initialize data     structures. A local attacker could use this to obtain sensitive information from the kernel.
    (CVE-2015-7885)

Tenable has extracted the preceding description block directly from the Ubuntu 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 Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2842-2 advisory.

    Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly     catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a     denial of service (system crash) in the host OS. (CVE-2015-8104)

     discovered that the ppp implementation in the Linux kernel did not ensure that certain slot     numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of     service (system crash). (CVE-2015-7799)

    It was discovered that the virtual video osd test driver in the Linux kernel did not properly initialize     data structures. A local attacker could use this to obtain sensitive information from the kernel.
    (CVE-2015-7884)

    It was discovered that the driver for Digi Neo and ClassicBoard devices did not properly initialize data     structures. A local attacker could use this to obtain sensitive information from the kernel.
    (CVE-2015-7885)

Tenable has extracted the preceding description block directly from the Ubuntu 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 receive various security and bugfixes.

Following security bugs were fixed :

  - CVE-2015-7509: Mounting ext4 filesystems in no-journal     mode could hav lead to a system crash (bsc#956709).

  - CVE-2015-7799: The slhc_init function in     drivers/net/slip/slhc.c in the Linux kernel did not     ensure that certain slot numbers are valid, which     allowed local users to cause a denial of service (NULL     pointer dereference and system crash) via a crafted     PPPIOCSMAXCID ioctl call (bnc#949936).

  - CVE-2015-8104: The KVM subsystem in the Linux kernel     allowed guest OS users to cause a denial of service     (host OS panic or hang) by triggering many #DB (aka     Debug) exceptions, related to svm.c (bnc#954404).

  - CVE-2015-5307: The KVM subsystem in the Linux kernel     allowed guest OS users to cause a denial of service     (host OS panic or hang) by triggering many #AC (aka     Alignment Check) exceptions, related to svm.c and vmx.c     (bnc#953527).

  - CVE-2015-7990: RDS: There was no verification that an     underlying transport exists when creating a connection,     causing usage of a NULL pointer (bsc#952384).

  - CVE-2015-5157: arch/x86/entry/entry_64.S in the Linux     kernel on the x86_64 platform mishandled IRET faults in     processing NMIs that occurred during userspace     execution, which might have allowed local users to gain     privileges by triggering an NMI (bnc#938706).

  - CVE-2015-7872: The key_gc_unused_keys function in     security/keys/gc.c in the Linux kernel allowed local     users to cause a denial of service (OOPS) via crafted     keyctl commands (bnc#951440).

  - CVE-2015-0272: Missing checks allowed remote attackers     to cause a denial of service (IPv6 traffic disruption)     via a crafted MTU value in an IPv6 Router Advertisement     (RA) message, a different vulnerability than     CVE-2015-8215 (bnc#944296).

  - CVE-2015-6937: The __rds_conn_create function in     net/rds/connection.c in the Linux kernel allowed local     users to cause a denial of service (NULL pointer     dereference and system crash) or possibly have     unspecified other impact by using a socket that was not     properly bound (bnc#945825).

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
87495	SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2015:2292-1)	Nessus	SuSE Local Security Checks	2015/12/18	2021/1/6	medium
89149	Fedora 23 : kernel-4.2.6-300.fc23 (2015-115c302856)	Nessus	Fedora Local Security Checks	2016/3/4	2021/1/11	medium
87214	SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2015:2194-1)	Nessus	SuSE Local Security Checks	2015/12/7	2021/1/6	medium
89412	Fedora 22 : kernel-4.2.6-200.fc22 (2015-cd94ad8d7c)	Nessus	Fedora Local Security Checks	2016/3/4	2021/1/11	medium
124812	EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1488)	Nessus	Huawei Local Security Checks	2019/5/13	2025/11/20	medium
286524	Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002345)	Nessus	Unity Linux Local Security Checks	2026/1/15	2026/1/15	medium
87466	Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-2841-1)	Nessus	Ubuntu Local Security Checks	2015/12/17	2024/8/27	low
87469	Ubuntu 14.04 LTS : Linux kernel (Vivid HWE) vulnerabilities (USN-2842-2)	Nessus	Ubuntu Local Security Checks	2015/12/17	2024/8/27	low
87651	SUSE SLED11 / SLES11 Security Update : kernel (SUSE-SU-2015:2339-1)	Nessus	SuSE Local Security Checks	2015/12/29	2021/1/6	medium

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