ID CVE-2015-5156
Summary The virtnet_probe function in drivers/net/virtio_net.c in the Linux kernel before 4.2 attempts to support a FRAGLIST feature without proper memory allocation, which allows guest OS users to cause a denial of service (buffer overflow and memory corruption) via a crafted sequence of fragmented packets.
References
Vulnerable Configurations
  • Linux Kernel 4.1.10
    cpe:2.3:o:linux:linux_kernel:4.1.10
CVSS
Base: 6.1 (as of 19-10-2015 - 13:51)
Impact:
Exploitability:
CWE CWE-119
CAPEC
  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
  • Overflow Binary Resource File
    An attack of this type exploits a buffer overflow vulnerability in the handling of binary resources. Binary resources may include music files like MP3, image files like JPEG files, and any other binary file. These attacks may pass unnoticed to the client machine through normal usage of files, such as a browser loading a seemingly innocent JPEG file. This can allow the attacker access to the execution stack and execute arbitrary code in the target process. This attack pattern is a variant of standard buffer overflow attacks using an unexpected vector (binary files) to wrap its attack and open up a new attack vector. The attacker is required to either directly serve the binary content to the victim, or place it in a locale like a MP3 sharing application, for the victim to download. The attacker then is notified upon the download or otherwise locates the vulnerability opened up by the buffer overflow.
  • Buffer Overflow via Symbolic Links
    This type of attack leverages the use of symbolic links to cause buffer overflows. An attacker can try to create or manipulate a symbolic link file such that its contents result in out of bounds data. When the target software processes the symbolic link file, it could potentially overflow internal buffers with insufficient bounds checking.
  • Overflow Variables and Tags
    This type of attack leverages the use of tags or variables from a formatted configuration data to cause buffer overflow. The attacker crafts a malicious HTML page or configuration file that includes oversized strings, thus causing an overflow.
  • Buffer Overflow via Parameter Expansion
    In this attack, the target software is given input that the attacker knows will be modified and expanded in size during processing. This attack relies on the target software failing to anticipate that the expanded data may exceed some internal limit, thereby creating a buffer overflow.
  • Buffer Overflow in an API Call
    This attack targets libraries or shared code modules which are vulnerable to buffer overflow attacks. An attacker who has access to an API may try to embed malicious code in the API function call and exploit a buffer overflow vulnerability in the function's implementation. All clients that make use of the code library thus become vulnerable by association. This has a very broad effect on security across a system, usually affecting more than one software process.
  • Buffer Overflow in Local Command-Line Utilities
    This attack targets command-line utilities available in a number of shells. An attacker can leverage a vulnerability found in a command-line utility to escalate privilege to root.
Access
VectorComplexityAuthentication
ADJACENT_NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
NONE NONE COMPLETE
nessus via4
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2776-1.NASL
    description It was discovered that the Linux kernel did not check if a new IPv6 MTU set by a user space application was valid. A remote attacker could forge a route advertisement with an invalid MTU that a user space daemon like NetworkManager would honor and apply to the kernel, causing a denial of service. (CVE-2015-0272) It was discovered that virtio networking in the Linux kernel did not handle fragments correctly, leading to kernel memory corruption. A remote attacker could use this to cause a denial of service (system crash) or possibly execute code with administrative privileges. (CVE-2015-5156) It was discovered that the Reliable Datagram Sockets (RDS) implementation in the Linux kernel did not verify sockets were properly bound before attempting to send a message, which could cause a NULL pointer dereference. An attacker could use this to cause a denial of service (system crash). (CVE-2015-6937) Ben Hutchings discovered that the Advanced Union Filesystem (aufs) for the Linux kernel did not correctly handle references of memory mapped files from an aufs mount. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2015-7312). 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.
    last seen 2017-10-29
    modified 2016-10-26
    plugin id 86467
    published 2015-10-20
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86467
    title Ubuntu 14.04 LTS : linux vulnerabilities (USN-2776-1)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2015-3094.NASL
    description Description of changes: kernel-uek [2.6.32-400.37.12.el6uek] - virtio-net: drop NETIF_F_FRAGLIST (Jason Wang) [Orabug: 22145596] {CVE-2015-5156}
    last seen 2017-10-29
    modified 2015-12-01
    plugin id 86780
    published 2015-11-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86780
    title Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2015-3094)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-310.NASL
    description This update fixes the CVEs described below. CVE-2015-0272 It was discovered that NetworkManager would set IPv6 MTUs based on the values received in IPv6 RAs (Router Advertisements), without sufficiently validating these values. A remote attacker could exploit this attack to disable IPv6 connectivity. This has been mitigated by adding validation in the kernel. CVE-2015-5156 Jason Wang discovered that when a virtio_net device is connected to a bridge in the same VM, a series of TCP packets forwarded through the bridge may cause a heap buffer overflow. A remote attacker could use this to cause a denial of service (crash) or possibly for privilege escalation. CVE-2015-5364 It was discovered that the Linux kernel does not properly handle invalid UDP checksums. A remote attacker could exploit this flaw to cause a denial of service using a flood of UDP packets with invalid checksums. CVE-2015-5366 It was discovered that the Linux kernel does not properly handle invalid UDP checksums. A remote attacker can cause a denial of service against applications that use epoll by injecting a single packet with an invalid checksum. CVE-2015-5697 A flaw was discovered in the md driver in the Linux kernel leading to an information leak. CVE-2015-5707 An integer overflow in the SCSI generic driver in the Linux kernel was discovered. A local user with write permission on a SCSI generic device could potentially exploit this flaw for privilege escalation. CVE-2015-6937 It was found that the Reliable Datagram Sockets (RDS) protocol implementation did not verify that an underlying transport exists when creating a connection. Depending on how a local RDS application initialised its sockets, a remote attacker might be able to cause a denial of service (crash) by sending a crafted packet. For the oldoldstable distribution (squeeze), these problems have been fixed in version 2.6.32-48squeeze14. For the oldstable distribution (wheezy), these problems have been fixed in version 3.2.68-1+deb7u4 or earlier. For the stable distribution (jessie), these problems have been fixed in version 3.16.7-ckt11-1+deb8u4 or earlier. NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2017-10-29
    modified 2015-12-02
    plugin id 86049
    published 2015-09-22
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86049
    title Debian DLA-310-1 : linux-2.6 security update
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2015-3092.NASL
    description Description of changes: kernel-uek [3.8.13-98.5.2.el7uek] - virtio-net: drop NETIF_F_FRAGLIST (Jason Wang) [Orabug: 22145600] {CVE-2015-5156} [3.8.13-98.5.1.el7uek] - netdev: fix NETIF_F_GSO_UDP_TUNNEL_BIT enum shift in i40e driver import (Todd Vierling) [Orabug: 22066176]
    last seen 2017-10-29
    modified 2015-12-01
    plugin id 86778
    published 2015-11-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86778
    title Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2015-3092)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2773-1.NASL
    description It was discovered that virtio networking in the Linux kernel did not handle fragments correctly, leading to kernel memory corruption. A remote attacker could use this to cause a denial of service (system crash) or possibly execute code with administrative privileges. (CVE-2015-5156) It was discovered that the Reliable Datagram Sockets (RDS) implementation in the Linux kernel did not verify sockets were properly bound before attempting to send a message, which could cause a NULL pointer dereference. An attacker could use this to cause a denial of service (system crash). (CVE-2015-6937). 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.
    last seen 2017-10-29
    modified 2016-10-26
    plugin id 86465
    published 2015-10-20
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86465
    title Ubuntu 12.04 LTS : linux vulnerabilities (USN-2773-1)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DSA-3364.NASL
    description Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation or denial of service. - CVE-2015-8215 It was discovered that NetworkManager would set IPv6 MTUs based on the values received in IPv6 RAs (Router Advertisements), without sufficiently validating these values. A remote attacker could exploit this attack to disable IPv6 connectivity. This has been mitigated by adding validation in the kernel. - CVE-2015-2925 Jann Horn discovered that when a subdirectory of a filesystem is bind-mounted into a container that has its own user and mount namespaces, a process with CAP_SYS_ADMIN capability in the user namespace can access files outside of the subdirectory. The default Debian configuration mitigated this as it does not allow unprivileged users to create new user namespaces. - CVE-2015-5156 Jason Wang discovered that when a virtio_net device is connected to a bridge in the same VM, a series of TCP packets forwarded through the bridge may cause a heap buffer overflow. A remote attacker could use this to cause a denial of service (crash) or possibly for privilege escalation. - CVE-2015-6252 Michael S. Tsirkin of Red Hat Engineering found that the vhost driver leaked file descriptors passed to it with the VHOST_SET_LOG_FD ioctl command. A privileged local user with access to the /dev/vhost-net file, either directly or via libvirt, could use this to cause a denial of service (hang or crash). - CVE-2015-6937 It was found that the Reliable Datagram Sockets (RDS) protocol implementation did not verify that an underlying transport exists when creating a connection. Depending on how a local RDS application initialised its sockets, a remote attacker might be able to cause a denial of service (crash) by sending a crafted packet. - CVE-2015-7312 Xavier Chantry discovered that the patch provided by the aufs project to correct behaviour of memory-mapped files from an aufs mount introduced a race condition in the msync() system call. Ben Hutchings found that it also introduced a similar bug in the madvise_remove() function. A local attacker could use this to cause a denial of service or possibly for privilege escalation.
    last seen 2017-10-29
    modified 2016-04-28
    plugin id 86050
    published 2015-09-22
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86050
    title Debian DSA-3364-1 : linux - security update
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2016-0855.NASL
    description From Red Hat Security Advisory 2016:0855 : 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 Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es) : * It was found that reporting emulation failures to user space could lead to either a local (CVE-2014-7842) or a L2->L1 (CVE-2010-5313) denial of service. In the case of a local denial of service, an attacker must have access to the MMIO area or be able to access an I/O port. Please note that on certain systems, HPET is mapped to userspace as part of vdso (vvar) and thus an unprivileged user may generate MMIO transactions (and enter the emulator) this way. (CVE-2010-5313, CVE-2014-7842, Moderate) * It was found that the Linux kernel did not properly account file descriptors passed over the unix socket against the process limit. A local user could use this flaw to exhaust all available memory on the system. (CVE-2013-4312, Moderate) * A buffer overflow flaw was found in the way the Linux kernel's virtio-net subsystem handled certain fraglists when the GRO (Generic Receive Offload) functionality was enabled in a bridged network configuration. An attacker on the local network could potentially use this flaw to crash the system, or, although unlikely, elevate their privileges on the system. (CVE-2015-5156, Moderate) * 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, Moderate) * A NULL pointer dereference flaw was found in the way the Linux kernel's network subsystem handled socket creation with an invalid protocol identifier. A local user could use this flaw to crash the system. (CVE-2015-8543, Moderate) * It was found that the espfix functionality does not work for 32-bit KVM paravirtualized guests. A local, unprivileged guest user could potentially use this flaw to leak kernel stack addresses. (CVE-2014-8134, Low) * A flaw was found in the way the Linux kernel's ext4 file system driver handled non-journal file systems with an orphan list. An attacker with physical access to the system could use this flaw to crash the system or, although unlikely, escalate their privileges on the system. (CVE-2015-7509, Low) * A NULL pointer dereference flaw was found in the way the Linux kernel's ext4 file system driver handled certain corrupted file system images. An attacker with physical access to the system could use this flaw to crash the system. (CVE-2015-8324, Low) Red Hat would like to thank Nadav Amit for reporting CVE-2010-5313 and CVE-2014-7842, Andy Lutomirski for reporting CVE-2014-8134, and Dmitriy Monakhov (OpenVZ) for reporting CVE-2015-8324. The CVE-2015-5156 issue was discovered by Jason Wang (Red Hat). Additional Changes : * Refer to Red Hat Enterprise Linux 6.8 Release Notes for information on new kernel features and known issues, and Red Hat Enterprise Linux Technical Notes for information on device driver updates, important changes to external kernel parameters, notable bug fixes, and technology previews. Both of these documents are linked to in the References section.
    last seen 2018-01-05
    modified 2018-01-05
    plugin id 91210
    published 2016-05-18
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=91210
    title Oracle Linux 6 : kernel (ELSA-2016-0855)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2015-C15F00EB95.NASL
    description The 4.2.3 stable rebase contains a number of new features and important bug fixes across the tree and improved hardware support. kernel-4.2.3-200.fc22 - Linux v4.2.3 - CVE-2015-5156 virtio-net: bug overflow with large fraglist (rhbz 1243852 1266515) 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.
    last seen 2017-10-29
    modified 2016-03-04
    plugin id 89392
    published 2016-03-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=89392
    title Fedora 22 : kernel-4.2.3-200.fc22 (2015-c15f00eb95)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20160510_KERNEL_ON_SL6_X.NASL
    description Security Fix(es) : - It was found that reporting emulation failures to user space could lead to either a local (CVE-2014-7842) or a L2->L1 (CVE-2010-5313) denial of service. In the case of a local denial of service, an attacker must have access to the MMIO area or be able to access an I/O port. Please note that on certain systems, HPET is mapped to userspace as part of vdso (vvar) and thus an unprivileged user may generate MMIO transactions (and enter the emulator) this way. (CVE-2010-5313, CVE-2014-7842, Moderate) - It was found that the Linux kernel did not properly account file descriptors passed over the unix socket against the process limit. A local user could use this flaw to exhaust all available memory on the system. (CVE-2013-4312, Moderate) - A buffer overflow flaw was found in the way the Linux kernel's virtio- net subsystem handled certain fraglists when the GRO (Generic Receive Offload) functionality was enabled in a bridged network configuration. An attacker on the local network could potentially use this flaw to crash the system, or, although unlikely, elevate their privileges on the system. (CVE-2015-5156, Moderate) - 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, Moderate) - A NULL pointer dereference flaw was found in the way the Linux kernel's network subsystem handled socket creation with an invalid protocol identifier. A local user could use this flaw to crash the system. (CVE-2015-8543, Moderate) - It was found that the espfix functionality does not work for 32-bit KVM paravirtualized guests. A local, unprivileged guest user could potentially use this flaw to leak kernel stack addresses. (CVE-2014-8134, Low) - A flaw was found in the way the Linux kernel's ext4 file system driver handled non-journal file systems with an orphan list. An attacker with physical access to the system could use this flaw to crash the system or, although unlikely, escalate their privileges on the system. (CVE-2015-7509, Low) - A NULL pointer dereference flaw was found in the way the Linux kernel's ext4 file system driver handled certain corrupted file system images. An attacker with physical access to the system could use this flaw to crash the system. (CVE-2015-8324, Low) Notes : - Problems have been reported with this kernel and VirtualBox. More info is available in the notes for the VirtualBox ticket here: https://www.virtualbox.org/ticket/14866< /a>
    last seen 2017-10-29
    modified 2016-10-19
    plugin id 91643
    published 2016-06-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=91643
    title Scientific Linux Security Update : kernel on SL6.x i386/x86_64
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2015-1978.NASL
    description From Red Hat Security Advisory 2015:1978 : Updated kernel packages that fix two security issues, several bugs, and add one enhancement are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. * A flaw was found in the way the Linux kernel's VFS subsystem handled file system locks. A local, unprivileged user could use this flaw to trigger a deadlock in the kernel, causing a denial of service on the system. (CVE-2014-8559, Moderate) * A buffer overflow flaw was found in the way the Linux kernel's virtio-net subsystem handled certain fraglists when the GRO (Generic Receive Offload) functionality was enabled in a bridged network configuration. An attacker on the local network could potentially use this flaw to crash the system, or, although unlikely, elevate their privileges on the system. (CVE-2015-5156, Moderate) The CVE-2015-5156 issue was discovered by Jason Wang of Red Hat. This update also fixes several bugs and adds one enhancement. Refer to the following Knowledgebase article for further information : https://access.redhat.com/articles/2039563 All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues and add this enhancement. The system must be rebooted for this update to take effect.
    last seen 2017-10-29
    modified 2016-04-28
    plugin id 86714
    published 2015-11-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86714
    title Oracle Linux 7 : kernel (ELSA-2015-1978)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2015-1978.NASL
    description Updated kernel packages that fix two security issues, several bugs, and add one enhancement are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. * A flaw was found in the way the Linux kernel's VFS subsystem handled file system locks. A local, unprivileged user could use this flaw to trigger a deadlock in the kernel, causing a denial of service on the system. (CVE-2014-8559, Moderate) * A buffer overflow flaw was found in the way the Linux kernel's virtio-net subsystem handled certain fraglists when the GRO (Generic Receive Offload) functionality was enabled in a bridged network configuration. An attacker on the local network could potentially use this flaw to crash the system, or, although unlikely, elevate their privileges on the system. (CVE-2015-5156, Moderate) The CVE-2015-5156 issue was discovered by Jason Wang of Red Hat. This update also fixes several bugs and adds one enhancement. Refer to the following Knowledgebase article for further information : https://access.redhat.com/articles/2039563 All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues and add this enhancement. The system must be rebooted for this update to take effect.
    last seen 2017-10-29
    modified 2017-01-06
    plugin id 86718
    published 2015-11-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86718
    title RHEL 7 : kernel (RHSA-2015:1978)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2015-1977.NASL
    description Updated kernel-rt packages that fix two security issues, several bugs, and add one enhancement are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. * A flaw was found in the way the Linux kernel's VFS subsystem handled file system locks. A local, unprivileged user could use this flaw to trigger a deadlock in the kernel, causing a denial of service on the system. (CVE-2014-8559, Moderate) * A buffer overflow flaw was found in the way the Linux kernel's virtio-net subsystem handled certain fraglists when the GRO (Generic Receive Offload) functionality was enabled in a bridged network configuration. An attacker on the local network could potentially use this flaw to crash the system, or, although unlikely, elevate their privileges on the system. (CVE-2015-5156, Moderate) The CVE-2015-5156 issue was discovered by Jason Wang of Red Hat. The kernel-rt packages have been upgraded to version 3.10.0-229.20.1, which provides a number of bug fixes and enhancements over the previous version, including : * Unexpected completion is detected on Intel Ethernet x540 * Divide by zero error in intel_pstate_timer_func() [ inline s64 div_s64_rem() ] * NFS Recover from stateid-type error on SETATTR * pNFS RHEL 7.1 Data Server connection remains after umount due to lseg refcount leak * Race during NFS v4.0 recovery and standard IO. * Fix ip6t_SYNPROXY for namespaces and connection delay * synproxy window size and sequence number behaviour causes long connection delay * Crash in kmem_cache_alloc() during disk stress testing (using ipr) * xfs: sync/backport to upstream v4.1 * iscsi_session recovery_tmo revert back to default when a path becomes active * read from MD raid1 can fail if read from resync target fails * backport scsi-mq * unable to handle kernel paging request at 0000000000237037 [zswap] (BZ#1266915) All kernel-rt users are advised to upgrade to these updated packages, which correct these issues and add this enhancement. The system must be rebooted for this update to take effect.
    last seen 2017-10-29
    modified 2017-01-06
    plugin id 86717
    published 2015-11-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86717
    title RHEL 7 : kernel-rt (RHSA-2015:1977)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20151103_KERNEL_ON_SL7_X.NASL
    description * A flaw was found in the way the Linux kernel's VFS subsystem handled file system locks. A local, unprivileged user could use this flaw to trigger a deadlock in the kernel, causing a denial of service on the system. (CVE-2014-8559, Moderate) * A buffer overflow flaw was found in the way the Linux kernel's virtio- net subsystem handled certain fraglists when the GRO (Generic Receive Offload) functionality was enabled in a bridged network configuration. An attacker on the local network could potentially use this flaw to crash the system, or, although unlikely, elevate their privileges on the system. (CVE-2015-5156, Moderate) The system must be rebooted for this update to take effect.
    last seen 2017-10-29
    modified 2015-11-05
    plugin id 86747
    published 2015-11-05
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86747
    title Scientific Linux Security Update : kernel on SL7.x x86_64
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2778-1.NASL
    description It was discovered that the Linux kernel did not check if a new IPv6 MTU set by a user space application was valid. A remote attacker could forge a route advertisement with an invalid MTU that a user space daemon like NetworkManager would honor and apply to the kernel, causing a denial of service. (CVE-2015-0272) It was discovered that virtio networking in the Linux kernel did not handle fragments correctly, leading to kernel memory corruption. A remote attacker could use this to cause a denial of service (system crash) or possibly execute code with administrative privileges. (CVE-2015-5156) It was discovered that the Reliable Datagram Sockets (RDS) implementation in the Linux kernel did not verify sockets were properly bound before attempting to send a message, which could cause a NULL pointer dereference. An attacker could use this to cause a denial of service (system crash). (CVE-2015-6937) Ben Hutchings discovered that the Advanced Union Filesystem (aufs) for the Linux kernel did not correctly handle references of memory mapped files from an aufs mount. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2015-7312). 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.
    last seen 2017-10-29
    modified 2016-10-26
    plugin id 86492
    published 2015-10-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86492
    title Ubuntu 14.04 LTS : linux-lts-vivid vulnerabilities (USN-2778-1)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2015-0147.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2015-0147 for details.
    last seen 2017-10-29
    modified 2017-02-14
    plugin id 86882
    published 2015-11-16
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86882
    title OracleVM 3.3 : kernel-uek (OVMSA-2015-0147)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2015-1727-1.NASL
    description The SUSE Linux Enterprise 12 kernel was updated to 3.12.48-52.27 to receive various security and bugfixes. Following security bugs were fixed : - CVE-2015-7613: A flaw was found in the Linux kernel IPC code that could lead to arbitrary code execution. The ipc_addid() function initialized a shared object that has unset uid/gid values. Since the fields are not initialized, the check can falsely succeed. (bsc#948536) - CVE-2015-5156: When a guests KVM network devices is in a bridge configuration the kernel can create a situation in which packets are fragmented in an unexpected fashion. The GRO functionality can create a situation in which multiple SKB's are chained together in a single packets fraglist (by design). (bsc#940776) - CVE-2015-5157: arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform mishandles IRET faults in processing NMIs that occurred during userspace execution, which might allow local users to gain privileges by triggering an NMI (bsc#938706). - CVE-2015-6252: 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 (bsc#942367). - CVE-2015-5697: The get_bitmap_file function in drivers/md/md.c in the Linux kernel before 4.1.6 does not initialize a certain bitmap data structure, which allows local users to obtain sensitive information from kernel memory via a GET_BITMAP_FILE ioctl call. (bnc#939994) - CVE-2015-6937: A NULL pointer dereference flaw was found in the Reliable Datagram Sockets (RDS) implementation allowing a local user to cause system DoS. A verification was missing that the underlying transport exists when a connection was created. (bsc#945825) - CVE-2015-5283: A NULL pointer dereference flaw was found in SCTP implementation allowing a local user to cause system DoS. Creation of multiple sockets in parallel when system doesn't have SCTP module loaded can lead to kernel panic. (bsc#947155) 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.
    last seen 2017-12-28
    modified 2017-12-28
    plugin id 86378
    published 2015-10-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86378
    title SUSE SLED12 / SLES12 Security Update : kernel-source (SUSE-SU-2015:1727-1)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2777-1.NASL
    description It was discovered that virtio networking in the Linux kernel did not handle fragments correctly, leading to kernel memory corruption. A remote attacker could use this to cause a denial of service (system crash) or possibly execute code with administrative privileges. (CVE-2015-5156) Benjamin Randazzo discovered an information leak in the md (multiple device) driver when the bitmap_info.file is disabled. A local privileged attacker could use this to obtain sensitive information from the kernel. (CVE-2015-5697) Marc-Andre Lureau discovered that the vhost driver did not properly release the userspace provided log file descriptor. A privileged attacker could use this to cause a denial of service (resource exhaustion). (CVE-2015-6252) It was discovered that the Reliable Datagram Sockets (RDS) implementation in the Linux kernel did not verify sockets were properly bound before attempting to send a message, which could cause a NULL pointer dereference. An attacker could use this to cause a denial of service (system crash). (CVE-2015-6937) Ben Hutchings discovered that the Advanced Union Filesystem (aufs) for the Linux kernel did not correctly handle references of memory mapped files from an aufs mount. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2015-7312). 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.
    last seen 2017-10-29
    modified 2016-10-26
    plugin id 86468
    published 2015-10-20
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86468
    title Ubuntu 14.04 LTS : linux-lts-utopic vulnerabilities (USN-2777-1)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2015-0144.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : - virtio-net: drop NETIF_F_FRAGLIST (Jason Wang) [Orabug: 22145600] (CVE-2015-5156) - netdev: fix NETIF_F_GSO_UDP_TUNNEL_BIT enum shift in i40e driver import (Todd Vierling) [Orabug: 22066176] - xen/blkfront: remove redundant flush_op (Vitaly Kuznetsov) [Orabug: 21868758] - xen/blkfront: improve protection against issuing unsupported REQ_FUA (Vitaly Kuznetsov) [Orabug: 21868758] - xen-blkfront: introduce blkfront_gather_backend_features (Bob Liu) [Orabug: 20190614] - sched/x86: Fix up typo in topology detection (Dave Hansen) [Orabug: 21845184]
    last seen 2017-10-29
    modified 2017-02-14
    plugin id 86781
    published 2015-11-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86781
    title OracleVM 3.3 : kernel-uek (OVMSA-2015-0144)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2775-1.NASL
    description It was discovered that the Linux kernel did not check if a new IPv6 MTU set by a user space application was valid. A remote attacker could forge a route advertisement with an invalid MTU that a user space daemon like NetworkManager would honor and apply to the kernel, causing a denial of service. (CVE-2015-0272) It was discovered that virtio networking in the Linux kernel did not handle fragments correctly, leading to kernel memory corruption. A remote attacker could use this to cause a denial of service (system crash) or possibly execute code with administrative privileges. (CVE-2015-5156) It was discovered that the Reliable Datagram Sockets (RDS) implementation in the Linux kernel did not verify sockets were properly bound before attempting to send a message, which could cause a NULL pointer dereference. An attacker could use this to cause a denial of service (system crash). (CVE-2015-6937) Ben Hutchings discovered that the Advanced Union Filesystem (aufs) for the Linux kernel did not correctly handle references of memory mapped files from an aufs mount. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2015-7312). 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.
    last seen 2017-10-29
    modified 2016-10-26
    plugin id 86466
    published 2015-10-20
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86466
    title Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-2775-1)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2015-3093.NASL
    description Description of changes: [2.6.39-400.264.5.el6uek] - virtio-net: drop NETIF_F_FRAGLIST (Jason Wang) [Orabug: 22145599] {CVE-2015-5156}
    last seen 2017-10-29
    modified 2015-12-01
    plugin id 86779
    published 2015-11-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86779
    title Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2015-3093)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2015-0253D1F070.NASL
    description kernel-4.1.12-101.fc21 - Linux v4.1.12 ---- kernel-4.1.12-100.fc21 - Linux v4.1.12 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.
    last seen 2017-10-29
    modified 2016-03-04
    plugin id 89129
    published 2016-03-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=89129
    title Fedora 21 : kernel-4.1.12-101.fc21 (2015-0253d1f070)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2016-0855.NASL
    description 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 Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es) : * It was found that reporting emulation failures to user space could lead to either a local (CVE-2014-7842) or a L2->L1 (CVE-2010-5313) denial of service. In the case of a local denial of service, an attacker must have access to the MMIO area or be able to access an I/O port. Please note that on certain systems, HPET is mapped to userspace as part of vdso (vvar) and thus an unprivileged user may generate MMIO transactions (and enter the emulator) this way. (CVE-2010-5313, CVE-2014-7842, Moderate) * It was found that the Linux kernel did not properly account file descriptors passed over the unix socket against the process limit. A local user could use this flaw to exhaust all available memory on the system. (CVE-2013-4312, Moderate) * A buffer overflow flaw was found in the way the Linux kernel's virtio-net subsystem handled certain fraglists when the GRO (Generic Receive Offload) functionality was enabled in a bridged network configuration. An attacker on the local network could potentially use this flaw to crash the system, or, although unlikely, elevate their privileges on the system. (CVE-2015-5156, Moderate) * 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, Moderate) * A NULL pointer dereference flaw was found in the way the Linux kernel's network subsystem handled socket creation with an invalid protocol identifier. A local user could use this flaw to crash the system. (CVE-2015-8543, Moderate) * It was found that the espfix functionality does not work for 32-bit KVM paravirtualized guests. A local, unprivileged guest user could potentially use this flaw to leak kernel stack addresses. (CVE-2014-8134, Low) * A flaw was found in the way the Linux kernel's ext4 file system driver handled non-journal file systems with an orphan list. An attacker with physical access to the system could use this flaw to crash the system or, although unlikely, escalate their privileges on the system. (CVE-2015-7509, Low) * A NULL pointer dereference flaw was found in the way the Linux kernel's ext4 file system driver handled certain corrupted file system images. An attacker with physical access to the system could use this flaw to crash the system. (CVE-2015-8324, Low) Red Hat would like to thank Nadav Amit for reporting CVE-2010-5313 and CVE-2014-7842, Andy Lutomirski for reporting CVE-2014-8134, and Dmitriy Monakhov (OpenVZ) for reporting CVE-2015-8324. The CVE-2015-5156 issue was discovered by Jason Wang (Red Hat). Additional Changes : * Refer to Red Hat Enterprise Linux 6.8 Release Notes for information on new kernel features and known issues, and Red Hat Enterprise Linux Technical Notes for information on device driver updates, important changes to external kernel parameters, notable bug fixes, and technology previews. Both of these documents are linked to in the References section.
    last seen 2018-01-05
    modified 2018-01-05
    plugin id 91077
    published 2016-05-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=91077
    title RHEL 6 : kernel (RHSA-2016:0855)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2779-1.NASL
    description It was discovered that the Linux kernel did not check if a new IPv6 MTU set by a user space application was valid. A remote attacker could forge a route advertisement with an invalid MTU that a user space daemon like NetworkManager would honor and apply to the kernel, causing a denial of service. (CVE-2015-0272) It was discovered that virtio networking in the Linux kernel did not handle fragments correctly, leading to kernel memory corruption. A remote attacker could use this to cause a denial of service (system crash) or possibly execute code with administrative privileges. (CVE-2015-5156) It was discovered that the Reliable Datagram Sockets (RDS) implementation in the Linux kernel did not verify sockets were properly bound before attempting to send a message, which could cause a NULL pointer dereference. An attacker could use this to cause a denial of service (system crash). (CVE-2015-6937) Ben Hutchings discovered that the Advanced Union Filesystem (aufs) for the Linux kernel did not correctly handle references of memory mapped files from an aufs mount. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2015-7312). 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.
    last seen 2017-10-29
    modified 2016-10-26
    plugin id 86493
    published 2015-10-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86493
    title Ubuntu 15.04 : linux vulnerabilities (USN-2779-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2015-2292-1.NASL
    description 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.
    last seen 2017-12-28
    modified 2017-12-28
    plugin id 87495
    published 2015-12-18
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=87495
    title SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2015:2292-1)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2016-0037.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2016-0037 for details.
    last seen 2017-10-29
    modified 2017-02-14
    plugin id 90019
    published 2016-03-18
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=90019
    title OracleVM 3.2 : kernel-uek (OVMSA-2016-0037)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2017-0057.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2017-0057 for details.
    last seen 2018-05-30
    modified 2018-05-25
    plugin id 99163
    published 2017-04-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99163
    title OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0057) (Dirty COW)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2018-1080-1.NASL
    description The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2017-5715: Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis (bnc#1068032). Enhancements and bugfixes over the previous fixes have been added to this kernel. - CVE-2018-10087: The kernel_wait4 function in kernel/exit.c might have allowed local users to cause a denial of service by triggering an attempted use of the -INT_MIN value (bnc#1089608). - CVE-2018-7757: Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c allowed 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 (bnc#1084536). - CVE-2018-7566: There was a buffer overflow via an SNDRV_SEQ_IOCTL_SET_CLIENT_POOL ioctl write operation to /dev/snd/seq by a local user (bnc#1083483). - CVE-2017-0861: Use-after-free vulnerability in the snd_pcm_info function in the ALSA subsystem allowed attackers to gain privileges via unspecified vectors (bnc#1088260). - CVE-2018-8822: Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c could be exploited by malicious NCPFS servers to crash the kernel or execute code (bnc#1086162). - CVE-2017-13166: An elevation of privilege vulnerability in the kernel v4l2 video driver. (bnc#1072865). - CVE-2017-18203: The dm_get_from_kobject function in drivers/md/dm.c allowed local users to cause a denial of service (BUG) by leveraging a race condition with __dm_destroy during creation and removal of DM devices (bnc#1083242). - CVE-2017-16911: The vhci_hcd driver allowed allows local attackers to disclose kernel memory addresses. Successful exploitation requires that a USB device is attached over IP (bnc#1078674). - CVE-2017-18208: The madvise_willneed function in mm/madvise.c local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping (bnc#1083494). - 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-2018-6927: The futex_requeue function in kernel/futex.c in the Linux kernel might allow attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact by triggering a negative wake or requeue value (bnc#1080757). - CVE-2017-16914: The 'stub_send_ret_submit()' function (drivers/usb/usbip/stub_tx.c) allowed attackers to cause a denial of service (NULL pointer dereference) via a specially crafted USB over IP packet (bnc#1078669). - CVE-2016-7915: The hid_input_field function in drivers/hid/hid-core.c allowed physically proximate attackers to obtain sensitive information from kernel memory or cause a denial of service (out-of-bounds read) by connecting a device, as demonstrated by a Logitech DJ receiver (bnc#1010470). - CVE-2015-5156: The virtnet_probe function in drivers/net/virtio_net.c 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-2017-12190: The bio_map_user_iov and bio_unmap_user functions in block/bio.c did unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bio_add_pc_page function merges them into one, but the page reference is never dropped. This causes a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a virtual machine) due to an out-of-memory condition (bnc#1062568). - 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). 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.
    last seen 2018-05-06
    modified 2018-05-01
    plugin id 109360
    published 2018-04-26
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=109360
    title SUSE SLES11 Security Update : kernel (SUSE-SU-2018:1080-1) (Spectre)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2016-0855.NASL
    description 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 Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es) : * It was found that reporting emulation failures to user space could lead to either a local (CVE-2014-7842) or a L2->L1 (CVE-2010-5313) denial of service. In the case of a local denial of service, an attacker must have access to the MMIO area or be able to access an I/O port. Please note that on certain systems, HPET is mapped to userspace as part of vdso (vvar) and thus an unprivileged user may generate MMIO transactions (and enter the emulator) this way. (CVE-2010-5313, CVE-2014-7842, Moderate) * It was found that the Linux kernel did not properly account file descriptors passed over the unix socket against the process limit. A local user could use this flaw to exhaust all available memory on the system. (CVE-2013-4312, Moderate) * A buffer overflow flaw was found in the way the Linux kernel's virtio-net subsystem handled certain fraglists when the GRO (Generic Receive Offload) functionality was enabled in a bridged network configuration. An attacker on the local network could potentially use this flaw to crash the system, or, although unlikely, elevate their privileges on the system. (CVE-2015-5156, Moderate) * 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, Moderate) * A NULL pointer dereference flaw was found in the way the Linux kernel's network subsystem handled socket creation with an invalid protocol identifier. A local user could use this flaw to crash the system. (CVE-2015-8543, Moderate) * It was found that the espfix functionality does not work for 32-bit KVM paravirtualized guests. A local, unprivileged guest user could potentially use this flaw to leak kernel stack addresses. (CVE-2014-8134, Low) * A flaw was found in the way the Linux kernel's ext4 file system driver handled non-journal file systems with an orphan list. An attacker with physical access to the system could use this flaw to crash the system or, although unlikely, escalate their privileges on the system. (CVE-2015-7509, Low) * A NULL pointer dereference flaw was found in the way the Linux kernel's ext4 file system driver handled certain corrupted file system images. An attacker with physical access to the system could use this flaw to crash the system. (CVE-2015-8324, Low) Red Hat would like to thank Nadav Amit for reporting CVE-2010-5313 and CVE-2014-7842, Andy Lutomirski for reporting CVE-2014-8134, and Dmitriy Monakhov (OpenVZ) for reporting CVE-2015-8324. The CVE-2015-5156 issue was discovered by Jason Wang (Red Hat). Additional Changes : * Refer to Red Hat Enterprise Linux 6.8 Release Notes for information on new kernel features and known issues, and Red Hat Enterprise Linux Technical Notes for information on device driver updates, important changes to external kernel parameters, notable bug fixes, and technology previews. Both of these documents are linked to in the References section.
    last seen 2018-07-03
    modified 2018-07-02
    plugin id 91170
    published 2016-05-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=91170
    title CentOS 6 : kernel (CESA-2016:0855)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2018-1172-1.NASL
    description The SUSE Linux Enterprise 11 SP3 LTSS kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2018-1087: And an unprivileged KVM guest user could use this flaw to potentially escalate their privileges inside a guest. (bsc#1087088) - CVE-2018-8897: An unprivileged system user could use incorrect set up interrupt stacks to crash the Linux kernel resulting in DoS issue. (bsc#1087088) - CVE-2018-10124: The kill_something_info function in kernel/signal.c might allow local users to cause a denial of service via an INT_MIN argument (bnc#1089752). - CVE-2018-10087: The kernel_wait4 function in kernel/exit.c might allow local users to cause a denial of service by triggering an attempted use of the -INT_MIN value (bnc#1089608). - CVE-2018-7757: Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c allowed 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 (bnc#1084536 1087209). - CVE-2018-7566: A Buffer Overflow via an SNDRV_SEQ_IOCTL_SET_CLIENT_POOL ioctl write operation to /dev/snd/seq by a local user was fixed (bnc#1083483). - CVE-2017-0861: Use-after-free vulnerability in the snd_pcm_info function in the ALSA subsystem allowed attackers to gain privileges via unspecified vectors (bnc#1088260). - CVE-2018-8822: Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c could be exploited by malicious NCPFS servers to crash the kernel or execute code (bnc#1086162). - CVE-2017-13166: An elevation of privilege vulnerability in the kernel v4l2 video driver. (bnc#1072865). - CVE-2017-18203: The dm_get_from_kobject function in drivers/md/dm.c 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 (bnc#1083242). - CVE-2017-16911: The vhci_hcd driver allowed allows local attackers to disclose kernel memory addresses. Successful exploitation requires that a USB device is attached over IP (bnc#1078674). - 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-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-2018-6927: The futex_requeue function in kernel/futex.c might allow attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact by triggering a negative wake or requeue value (bnc#1080757). - CVE-2017-16914: The 'stub_send_ret_submit()' function (drivers/usb/usbip/stub_tx.c) allowed attackers to cause a denial of service (NULL pointer dereference) via a specially crafted USB over IP packet (bnc#1078669). - CVE-2016-7915: The hid_input_field function in drivers/hid/hid-core.c allowed physically proximate attackers to obtain sensitive information from kernel memory or cause a denial of service (out-of-bounds read) by connecting a device, as demonstrated by a Logitech DJ receiver (bnc#1010470). - CVE-2015-5156: The virtnet_probe function in drivers/net/virtio_net.c 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-2017-12190: The bio_map_user_iov and bio_unmap_user functions in block/bio.c did unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bio_add_pc_page function merges them into one, but the page reference is never dropped. This causes a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a virtual machine) due to an out-of-memory condition (bnc#1062568). - 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). 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.
    last seen 2018-05-10
    modified 2018-05-09
    plugin id 109646
    published 2018-05-09
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=109646
    title SUSE SLES11 Security Update : kernel (SUSE-SU-2018:1172-1)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2015-3098.NASL
    description The remote Oracle Linux host is missing a security update for the Unbreakable Enterprise kernel package(s).
    last seen 2017-10-29
    modified 2016-11-14
    plugin id 86881
    published 2015-11-16
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86881
    title Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2015-3098)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2015-1978.NASL
    description Updated kernel packages that fix two security issues, several bugs, and add one enhancement are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. * A flaw was found in the way the Linux kernel's VFS subsystem handled file system locks. A local, unprivileged user could use this flaw to trigger a deadlock in the kernel, causing a denial of service on the system. (CVE-2014-8559, Moderate) * A buffer overflow flaw was found in the way the Linux kernel's virtio-net subsystem handled certain fraglists when the GRO (Generic Receive Offload) functionality was enabled in a bridged network configuration. An attacker on the local network could potentially use this flaw to crash the system, or, although unlikely, elevate their privileges on the system. (CVE-2015-5156, Moderate) The CVE-2015-5156 issue was discovered by Jason Wang of Red Hat. This update also fixes several bugs and adds one enhancement. Refer to the following Knowledgebase article for further information : https://access.redhat.com/articles/2039563 All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues and add this enhancement. The system must be rebooted for this update to take effect.
    last seen 2018-07-03
    modified 2018-07-02
    plugin id 86723
    published 2015-11-05
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=86723
    title CentOS 7 : kernel (CESA-2015:1978)
redhat via4
advisories
  • bugzilla
    id 1266915
    title kernel-rt: update to the RHEL7.1.z batch 6 source tree
    oval
    AND
    • OR
      • comment Red Hat Enterprise Linux 7 Client is installed
        oval oval:com.redhat.rhsa:tst:20140675001
      • comment Red Hat Enterprise Linux 7 Server is installed
        oval oval:com.redhat.rhsa:tst:20140675002
      • comment Red Hat Enterprise Linux 7 Workstation is installed
        oval oval:com.redhat.rhsa:tst:20140675003
      • comment Red Hat Enterprise Linux 7 ComputeNode is installed
        oval oval:com.redhat.rhsa:tst:20140675004
    • OR
      • AND
        • comment kernel-rt is earlier than 0:3.10.0-229.20.1.rt56.141.14.el7_1
          oval oval:com.redhat.rhsa:tst:20151977021
        • comment kernel-rt is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20150727006
      • AND
        • comment kernel-rt-debug is earlier than 0:3.10.0-229.20.1.rt56.141.14.el7_1
          oval oval:com.redhat.rhsa:tst:20151977011
        • comment kernel-rt-debug is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20150727014
      • AND
        • comment kernel-rt-debug-devel is earlier than 0:3.10.0-229.20.1.rt56.141.14.el7_1
          oval oval:com.redhat.rhsa:tst:20151977013
        • comment kernel-rt-debug-devel is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20150727016
      • AND
        • comment kernel-rt-devel is earlier than 0:3.10.0-229.20.1.rt56.141.14.el7_1
          oval oval:com.redhat.rhsa:tst:20151977007
        • comment kernel-rt-devel is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20150727012
      • AND
        • comment kernel-rt-doc is earlier than 0:3.10.0-229.20.1.rt56.141.14.el7_1
          oval oval:com.redhat.rhsa:tst:20151977005
        • comment kernel-rt-doc is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20150727022
      • AND
        • comment kernel-rt-trace is earlier than 0:3.10.0-229.20.1.rt56.141.14.el7_1
          oval oval:com.redhat.rhsa:tst:20151977019
        • comment kernel-rt-trace is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20150727008
      • AND
        • comment kernel-rt-trace-devel is earlier than 0:3.10.0-229.20.1.rt56.141.14.el7_1
          oval oval:com.redhat.rhsa:tst:20151977017
        • comment kernel-rt-trace-devel is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20150727010
      • AND
        • comment kernel-rt-virt is earlier than 0:3.10.0-229.20.1.rt56.141.14.el7_1
          oval oval:com.redhat.rhsa:tst:20151977009
        • comment kernel-rt-virt is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20150727018
      • AND
        • comment kernel-rt-virt-devel is earlier than 0:3.10.0-229.20.1.rt56.141.14.el7_1
          oval oval:com.redhat.rhsa:tst:20151977015
        • comment kernel-rt-virt-devel is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20150727020
    rhsa
    id RHSA-2015:1977
    released 2015-09-25
    severity Moderate
    title RHSA-2015:1977: kernel-rt security, bug fix, and enhancement update (Moderate)
  • bugzilla
    id 1243852
    title CVE-2015-5156 kernel: buffer overflow with fraglist larger than MAX_SKB_FRAGS + 2 in virtio-net
    oval
    AND
    • OR
      • comment Red Hat Enterprise Linux 7 Client is installed
        oval oval:com.redhat.rhsa:tst:20140675001
      • comment Red Hat Enterprise Linux 7 Server is installed
        oval oval:com.redhat.rhsa:tst:20140675002
      • comment Red Hat Enterprise Linux 7 Workstation is installed
        oval oval:com.redhat.rhsa:tst:20140675003
      • comment Red Hat Enterprise Linux 7 ComputeNode is installed
        oval oval:com.redhat.rhsa:tst:20140675004
    • OR
      • AND
        • comment kernel is earlier than 0:3.10.0-229.20.1.el7
          oval oval:com.redhat.rhsa:tst:20151978023
        • comment kernel is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20100842006
      • AND
        • comment kernel-abi-whitelists is earlier than 0:3.10.0-229.20.1.el7
          oval oval:com.redhat.rhsa:tst:20151978005
        • comment kernel-abi-whitelists is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20131645028
      • AND
        • comment kernel-bootwrapper is earlier than 0:3.10.0-229.20.1.el7
          oval oval:com.redhat.rhsa:tst:20151978027
        • comment kernel-bootwrapper is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20100842010
      • AND
        • comment kernel-debug is earlier than 0:3.10.0-229.20.1.el7
          oval oval:com.redhat.rhsa:tst:20151978021
        • comment kernel-debug is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20100842012
      • AND
        • comment kernel-debug-devel is earlier than 0:3.10.0-229.20.1.el7
          oval oval:com.redhat.rhsa:tst:20151978019
        • comment kernel-debug-devel is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20100842014
      • AND
        • comment kernel-devel is earlier than 0:3.10.0-229.20.1.el7
          oval oval:com.redhat.rhsa:tst:20151978015
        • comment kernel-devel is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20100842016
      • AND
        • comment kernel-doc is earlier than 0:3.10.0-229.20.1.el7
          oval oval:com.redhat.rhsa:tst:20151978007
        • comment kernel-doc is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20100842024
      • AND
        • comment kernel-headers is earlier than 0:3.10.0-229.20.1.el7
          oval oval:com.redhat.rhsa:tst:20151978009
        • comment kernel-headers is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20100842008
      • AND
        • comment kernel-kdump is earlier than 0:3.10.0-229.20.1.el7
          oval oval:com.redhat.rhsa:tst:20151978011
        • comment kernel-kdump is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20100842018
      • AND
        • comment kernel-kdump-devel is earlier than 0:3.10.0-229.20.1.el7
          oval oval:com.redhat.rhsa:tst:20151978013
        • comment kernel-kdump-devel is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20100842020
      • AND
        • comment kernel-tools is earlier than 0:3.10.0-229.20.1.el7
          oval oval:com.redhat.rhsa:tst:20151978031
        • comment kernel-tools is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20140678010
      • AND
        • comment kernel-tools-libs is earlier than 0:3.10.0-229.20.1.el7
          oval oval:com.redhat.rhsa:tst:20151978029
        • comment kernel-tools-libs is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20140678012
      • AND
        • comment kernel-tools-libs-devel is earlier than 0:3.10.0-229.20.1.el7
          oval oval:com.redhat.rhsa:tst:20151978033
        • comment kernel-tools-libs-devel is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20140678020
      • AND
        • comment perf is earlier than 0:3.10.0-229.20.1.el7
          oval oval:com.redhat.rhsa:tst:20151978017
        • comment perf is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20100842022
      • AND
        • comment python-perf is earlier than 0:3.10.0-229.20.1.el7
          oval oval:com.redhat.rhsa:tst:20151978025
        • comment python-perf is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20111849018
    rhsa
    id RHSA-2015:1978
    released 2015-11-03
    severity Moderate
    title RHSA-2015:1978: kernel security, bug fix, and enhancement update (Moderate)
  • rhsa
    id RHSA-2016:0855
rpms
  • kernel-rt-0:3.10.0-229.20.1.rt56.141.14.el7_1
  • kernel-rt-debug-0:3.10.0-229.20.1.rt56.141.14.el7_1
  • kernel-rt-debug-devel-0:3.10.0-229.20.1.rt56.141.14.el7_1
  • kernel-rt-devel-0:3.10.0-229.20.1.rt56.141.14.el7_1
  • kernel-rt-doc-0:3.10.0-229.20.1.rt56.141.14.el7_1
  • kernel-rt-trace-0:3.10.0-229.20.1.rt56.141.14.el7_1
  • kernel-rt-trace-devel-0:3.10.0-229.20.1.rt56.141.14.el7_1
  • kernel-rt-virt-0:3.10.0-229.20.1.rt56.141.14.el7_1
  • kernel-rt-virt-devel-0:3.10.0-229.20.1.rt56.141.14.el7_1
  • kernel-0:3.10.0-229.20.1.el7
  • kernel-abi-whitelists-0:3.10.0-229.20.1.el7
  • kernel-bootwrapper-0:3.10.0-229.20.1.el7
  • kernel-debug-0:3.10.0-229.20.1.el7
  • kernel-debug-devel-0:3.10.0-229.20.1.el7
  • kernel-devel-0:3.10.0-229.20.1.el7
  • kernel-doc-0:3.10.0-229.20.1.el7
  • kernel-headers-0:3.10.0-229.20.1.el7
  • kernel-kdump-0:3.10.0-229.20.1.el7
  • kernel-kdump-devel-0:3.10.0-229.20.1.el7
  • kernel-tools-0:3.10.0-229.20.1.el7
  • kernel-tools-libs-0:3.10.0-229.20.1.el7
  • kernel-tools-libs-devel-0:3.10.0-229.20.1.el7
  • perf-0:3.10.0-229.20.1.el7
  • python-perf-0:3.10.0-229.20.1.el7
  • kernel-0:2.6.32-642.el6
  • kernel-abi-whitelists-0:2.6.32-642.el6
  • kernel-bootwrapper-0:2.6.32-642.el6
  • kernel-debug-0:2.6.32-642.el6
  • kernel-debug-devel-0:2.6.32-642.el6
  • kernel-devel-0:2.6.32-642.el6
  • kernel-doc-0:2.6.32-642.el6
  • kernel-firmware-0:2.6.32-642.el6
  • kernel-headers-0:2.6.32-642.el6
  • kernel-kdump-0:2.6.32-642.el6
  • kernel-kdump-devel-0:2.6.32-642.el6
  • perf-0:2.6.32-642.el6
  • python-perf-0:2.6.32-642.el6
refmap via4
bid 76230
confirm
debian DSA-3364
fedora
  • FEDORA-2015-0253d1f070
  • FEDORA-2015-c15f00eb95
sectrack 1034045
suse
  • SUSE-SU-2015:1727
  • SUSE-SU-2015:2292
ubuntu
  • USN-2773-1
  • USN-2774-1
  • USN-2777-1
Last major update 07-12-2016 - 22:09
Published 19-10-2015 - 06:59
Last modified 03-11-2017 - 21:29
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