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USN-1824-1: Linux kernel vulnerabilities

15 May 2013

Several security issues were fixed in the kernel.

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Mathias Krause discovered an information leak in the Linux kernel's ISO
9660 CDROM file system driver. A local user could exploit this flaw to
examine some of the kernel's heap memory. (CVE-2012-6549)

Mathias Krause discovered a flaw in xfrm_user in the Linux kernel. A local
attacker with NET_ADMIN capability could potentially exploit this flaw to
escalate privileges. (CVE-2013-1826)

A buffer overflow was discovered in the Linux Kernel's USB subsystem for
devices reporting the cdc-wdm class. A specially crafted USB device when
plugged-in could cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2013-1860)

An information leak was discovered in the Linux kernel's /dev/dvb device. A
local user could exploit this flaw to obtain sensitive information from the
kernel's stack memory. (CVE-2013-1928)

An information leak in the Linux kernel's dcb netlink interface was
discovered. A local user could obtain sensitive information by examining
kernel stack memory. (CVE-2013-2634)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 10.04

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

Related notices

  • USN-1812-1: linux-image-3.5.0-28-generic, linux-lts-quantal
  • USN-1809-1: linux-image-3.2.0-41-highbank, linux-image-3.2.0-41-powerpc64-smp, linux-image-3.2.0-41-virtual, linux-image-3.2.0-41-omap, linux-image-3.2.0-41-generic-pae, linux, linux-image-3.2.0-41-generic, linux-image-3.2.0-41-powerpc-smp
  • USN-1813-1: linux-image-3.5.0-28-omap, linux, linux-image-3.5.0-28-highbank, linux-image-3.5.0-28-generic, linux-image-3.5.0-28-powerpc64-smp, linux-image-3.5.0-28-powerpc-smp
  • USN-1814-1: linux-ti-omap4, linux-image-3.5.0-223-omap4
  • USN-1829-1: linux-ec2, linux-image-2.6.32-352-ec2
  • USN-1811-1: linux-ti-omap4, linux-image-3.2.0-1430-omap4
  • USN-1648-1: linux-image-3.0.0-28-generic, linux-image-3.0.0-28-omap, linux-image-3.0.0-28-powerpc64-smp, linux-image-3.0.0-28-powerpc, linux-image-3.0.0-28-server, linux, linux-image-3.0.0-28-virtual, linux-image-3.0.0-28-generic-pae, linux-image-3.0.0-28-powerpc-smp
  • USN-1644-1: linux-image-3.2.0-34-powerpc-smp, linux-image-3.2.0-34-generic-pae, linux-image-3.2.0-34-omap, linux-image-3.2.0-34-generic, linux, linux-image-3.2.0-34-virtual, linux-image-3.2.0-34-powerpc64-smp, linux-image-3.2.0-34-highbank
  • USN-1649-1: linux-ti-omap4, linux-image-3.0.0-1218-omap4
  • USN-1645-1: linux-ti-omap4, linux-image-3.2.0-1422-omap4
  • USN-1646-1: linux-image-3.5.0-19-powerpc64-smp, linux-image-3.5.0-19-powerpc-smp, linux-image-3.5.0-19-omap, linux, linux-image-3.5.0-19-generic, linux-image-3.5.0-19-highbank
  • USN-1647-1: linux-ti-omap4, linux-image-3.5.0-215-omap4
  • USN-1652-1: linux-image-3.0.0-28-generic, linux-image-3.0.0-28-server, linux-image-3.0.0-28-virtual, linux-lts-backport-oneiric, linux-image-3.0.0-28-generic-pae
  • USN-1704-1: linux-image-3.5.0-22-generic, linux-lts-quantal
  • USN-1673-1: linux-image-3.5.0-216-omap4, linux-ti-omap4
  • USN-1671-1: linux-image-3.5.0-21-powerpc-smp, linux-image-3.5.0-21-omap, linux-image-3.5.0-21-highbank, linux-image-3.5.0-21-powerpc64-smp, linux, linux-image-3.5.0-21-generic