high
7.2
Advisory Published
CVE Published
Updated

CVE-2015-8816

First published: Wed Feb 24 2016(Updated: )

Quickly plugging in and unplugging a USB hub can lead to a null pointer dereference in kernel (local denial of service) or the USB port to which the hub is connected becomes unusable, for kernel versions 2.6.32 &lt; 4.4. The issue occurs when the USB hub gets disconnected before or while the routine for USB hub activation is running - hub_activate() function. Upstream patch: <a href="https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e50293ef9775c5">https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e50293ef9775c5</a> External references: <a href="http://www.spinics.net/lists/linux-usb/msg132311.html">http://www.spinics.net/lists/linux-usb/msg132311.html</a> CVE-ID request and assignment: <a href="http://seclists.org/oss-sec/2016/q1/404">http://seclists.org/oss-sec/2016/q1/404</a> <a href="http://seclists.org/oss-sec/2016/q1/413">http://seclists.org/oss-sec/2016/q1/413</a>

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
SUSE Linux Enterprise Software Development Kit=11.0-sp4
SUSE Linux Enterprise Software Development Kit=12.0
SUSE Linux Enterprise Debuginfo=11-sp4
SUSE Linux Enterprise Desktop=12.0
SUSE Linux Enterprise Live Patching=12.0
SUSE Linux Enterprise Module for Public Cloud=12
SUSE Linux Enterprise Real Time Extension=11-sp4
SUSE Linux Enterprise Real Time Extension=12-sp1
SUSE Linux Enterprise Server=11-extra
SUSE Linux Enterprise Server=11-sp4
SUSE Linux Enterprise Server=12.0
SUSE Linux Enterprise Workstation Extension=12.0
Linux Kernel>=2.6.28<3.2.76
Linux Kernel>=3.3<3.4.113
Linux Kernel>=3.5<3.10.103
Linux Kernel>=3.11<3.12.58
Linux Kernel>=3.13<3.14.76
Linux Kernel>=3.15<3.16.35
Linux Kernel>=3.17<3.18.27
Linux Kernel>=3.19<4.1.17
Linux Kernel>=4.2<4.3.5
SUSE Linux Enterprise Live Patching=12
SUSE Linux Enterprise Server=12
Linux Kernel<=4.3.4

Remedy

https://github.com/torvalds/linux/commit/e50293ef9775c5f1cf3fcc093037dd6a8c5684ea

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2015-8816?

    CVE-2015-8816 has been classified as a local denial of service vulnerability affecting specific kernel versions.

  • How do I fix CVE-2015-8816?

    To fix CVE-2015-8816, update your system to a patched kernel version that is not affected by this vulnerability.

  • Which systems are affected by CVE-2015-8816?

    CVE-2015-8816 affects various versions of the Linux kernel, specifically from 2.6.32 to 4.4, as well as certain SUSE Linux distributions.

  • What happens if I am affected by CVE-2015-8816?

    If affected by CVE-2015-8816, quickly plugging and unplugging a USB hub can lead to system instability or an unusable USB port.

  • Is there a workaround for CVE-2015-8816?

    While the best solution is to update the kernel, avoiding rapid plugging and unplugging of USB hubs can serve as a temporary workaround.

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