CWE
362
Advisory Published

USN-2908-1: Linux kernel vulnerabilities

First published: Mon Feb 22 2016(Updated: )

halfdog discovered that OverlayFS, when mounting on top of a FUSE mount, incorrectly propagated file attributes, including setuid. A local unprivileged attacker could use this to gain privileges. (CVE-2016-1576) halfdog discovered that OverlayFS in the Linux kernel incorrectly propagated security sensitive extended attributes, such as POSIX ACLs. A local unprivileged attacker could use this to gain privileges. (CVE-2016-1575) It was discovered that the Linux kernel did not properly enforce rlimits for file descriptors sent over UNIX domain sockets. A local attacker could use this to cause a denial of service. (CVE-2013-4312) It was discovered that the Linux kernel's Filesystem in Userspace (FUSE) implementation did not handle initial zero length segments properly. A local attacker could use this to cause a denial of service (unkillable task). (CVE-2015-8785) Andy Lutomirski discovered a race condition in the Linux kernel's translation lookaside buffer (TLB) handling of flush events. A local attacker could use this to cause a denial of service or possibly leak sensitive information. (CVE-2016-2069)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-4.2.0-30-powerpc-smp<4.2.0-30.35
4.2.0-30.35
=15.10
All of
ubuntu/linux-image-4.2.0-30-powerpc64-smp<4.2.0-30.35
4.2.0-30.35
=15.10
All of
ubuntu/linux-image-4.2.0-30-lowlatency<4.2.0-30.35
4.2.0-30.35
=15.10
All of
ubuntu/linux-image-4.2.0-30-powerpc-e500mc<4.2.0-30.35
4.2.0-30.35
=15.10
All of
ubuntu/linux-image-4.2.0-30-powerpc64-emb<4.2.0-30.35
4.2.0-30.35
=15.10
All of
ubuntu/linux-image-4.2.0-30-generic-lpae<4.2.0-30.35
4.2.0-30.35
=15.10
All of
ubuntu/linux-image-4.2.0-30-generic<4.2.0-30.35
4.2.0-30.35
=15.10

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this Linux kernel vulnerability?

    The vulnerability ID for this Linux kernel vulnerability is CVE-2016-1576.

  • How does this vulnerability affect the Linux kernel?

    This vulnerability allows a local unprivileged attacker to gain privileges.

  • Which versions of Ubuntu are affected by this vulnerability?

    Ubuntu version 15.10 is affected by this vulnerability.

  • What is the severity of this vulnerability?

    The severity of this vulnerability is not specified.

  • Is there a fix available for this vulnerability?

    Yes, the fix for this vulnerability is to update to the version 4.2.0-30.35 of the Linux kernel.

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