Debian: DSA-3317-1: lxc security update

Date 25 Jul 2015

Category Debian Linux Distribution - Security Advisories

261

Posted By LinuxSecurity Advisories

Several vulnerabilities have been discovered in LXC, the Linux Containers userspace tools. The Common Vulnerabilities and Exposures project identifies the following problems:

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Debian Security Advisory DSA-3317-1 This email address is being protected from spambots. You need JavaScript enabled to view it.
https://www.debian.org/security/ Salvatore Bonaccorso
July 25, 2015 https://www.debian.org/security/faq
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Package : lxc
CVE ID : CVE-2015-1331 CVE-2015-1334
Debian Bug : 793298

Several vulnerabilities have been discovered in LXC, the Linux
Containers userspace tools. The Common Vulnerabilities and Exposures
project identifies the following problems:

CVE-2015-1331

Roman Fiedler discovered a directory traversal flaw in LXC when
creating lock files. A local attacker could exploit this flaw to
create an arbitrary file as the root user.

CVE-2015-1334

Roman Fiedler discovered that LXC incorrectly trusted the
container's proc filesystem to set up AppArmor profile changes and
SELinux domain transitions. A malicious container could create a
fake proc filesystem and use this flaw to run programs inside the
container that are not confined by AppArmor or SELinux.

For the stable distribution (jessie), these problems have been fixed in
version 1:1.0.6-6+deb8u1.

For the testing distribution (stretch), these problems have been fixed
in version 1:1.0.7-4.

For the unstable distribution (sid), these problems have been fixed in
version 1:1.0.7-4.

We recommend that you upgrade your lxc packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

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