Your submission was sent successfully! Close

Thank you for contacting us. A member of our team will be in touch shortly. Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

USN-1805-1: Linux kernel vulnerabilities

19 April 2013

Several security issues were fixed in the kernel.

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

Releases

Packages

Details

Mathias Krause discovered an information leak in the Linux kernel's
getsockname implementation for Logical Link Layer (llc) sockets. A local
user could exploit this flaw to examine some of the kernel's stack memory.
(CVE-2012-6542)

Mathias Krause discovered information leaks in the Linux kernel's Bluetooth
Logical Link Control and Adaptation Protocol (L2CAP) implementation. A
local user could exploit these flaws to examine some of the kernel's stack
memory. (CVE-2012-6544)

Mathias Krause discovered information leaks in the Linux kernel's Bluetooth
RFCOMM protocol implementation. A local user could exploit these flaws to
examine parts of kernel memory. (CVE-2012-6545)

Mathias Krause discovered information leaks in the Linux kernel's
Asynchronous Transfer Mode (ATM) networking stack. A local user could
exploit these flaws to examine some parts of kernel memory. (CVE-2012-6546)

Mathias Krause discovered an information leak in the Linux kernel's UDF
file system implementation. A local user could exploit this flaw to examine
some of the kernel's heap memory. (CVE-2012-6548)

Andrew Jones discovered a flaw with the xen_iret function in Linux kernel's
Xen virtualizeation. In the 32-bit Xen paravirt platform an unprivileged
guest OS user could exploit this flaw to cause a denial of service (crash
the system) or gain guest OS privilege. (CVE-2013-0228)

An information leak was discovered in the Linux kernel's Bluetooth stack
when HIDP (Human Interface Device Protocol) support is enabled. A local
unprivileged user could exploit this flaw to cause an information leak from
the kernel. (CVE-2013-0349)

A flaw was discovered in the Edgeort USB serial converter driver when the
device is disconnected while it is in use. A local user could exploit this
flaw to cause a denial of service (system crash). (CVE-2013-1774)

Andrew Honig discovered a flaw in guest OS time updates in the Linux
kernel's KVM (Kernel-based Virtual Machine). A privileged guest user could
exploit this flaw to cause a denial of service (crash host system) or
potential escalate privilege to the host kernel level. (CVE-2013-1796)

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.

References

Related notices

  • USN-1648-1: linux, linux-image-3.0.0-28-server, linux-image-3.0.0-28-powerpc-smp, linux-image-3.0.0-28-generic-pae, linux-image-3.0.0-28-omap, linux-image-3.0.0-28-generic, linux-image-3.0.0-28-powerpc, linux-image-3.0.0-28-virtual, linux-image-3.0.0-28-powerpc64-smp
  • USN-1599-1: linux-image-3.2.0-1420-omap4, linux-ti-omap4
  • USN-1649-1: linux-image-3.0.0-1218-omap4, linux-ti-omap4
  • USN-1610-1: linux, linux-image-3.2.0-32-highbank, linux-image-3.2.0-32-generic, linux-image-3.2.0-32-generic-pae, linux-image-3.2.0-32-virtual, linux-image-3.2.0-32-powerpc-smp, linux-image-3.2.0-32-powerpc64-smp, linux-image-3.2.0-32-omap
  • USN-1808-1: linux-image-2.6.32-351-ec2, linux-ec2
  • USN-1652-1: linux-lts-backport-oneiric, linux-image-3.0.0-28-server, linux-image-3.0.0-28-generic-pae, linux-image-3.0.0-28-generic, linux-image-3.0.0-28-virtual
  • USN-1812-1: linux-image-3.5.0-28-generic, linux-lts-quantal
  • USN-1809-1: linux, linux-image-3.2.0-41-powerpc64-smp, linux-image-3.2.0-41-omap, linux-image-3.2.0-41-generic, linux-image-3.2.0-41-virtual, linux-image-3.2.0-41-highbank, linux-image-3.2.0-41-generic-pae, linux-image-3.2.0-41-powerpc-smp
  • USN-1813-1: linux, linux-image-3.5.0-28-powerpc64-smp, linux-image-3.5.0-28-powerpc-smp, linux-image-3.5.0-28-highbank, linux-image-3.5.0-28-generic, linux-image-3.5.0-28-omap
  • USN-1814-1: linux-image-3.5.0-223-omap4, linux-ti-omap4
  • USN-1811-1: linux-image-3.2.0-1430-omap4, linux-ti-omap4
  • USN-1767-1: linux, linux-image-3.2.0-39-virtual, linux-image-3.2.0-39-generic, linux-image-3.2.0-39-powerpc-smp, linux-image-3.2.0-39-powerpc64-smp, linux-image-3.2.0-39-highbank, linux-image-3.2.0-39-generic-pae, linux-image-3.2.0-39-omap
  • USN-1781-1: linux-ti-omap4, linux-image-3.2.0-1427-omap4
  • USN-1796-1: linux, linux-image-3.5.0-27-highbank, linux-image-3.5.0-27-omap, linux-image-3.5.0-27-generic, linux-image-3.5.0-27-powerpc-smp, linux-image-3.5.0-27-powerpc64-smp
  • USN-1756-1: linux, linux-image-3.0.0-32-server, linux-image-3.0.0-32-powerpc-smp, linux-image-3.0.0-32-powerpc, linux-image-3.0.0-32-omap, linux-image-3.0.0-32-generic, linux-image-3.0.0-32-powerpc64-smp, linux-image-3.0.0-32-virtual, linux-image-3.0.0-32-generic-pae
  • USN-1795-1: linux-image-3.5.0-27-generic, linux-lts-quantal
  • USN-1797-1: linux-image-3.5.0-222-omap4, linux-ti-omap4
  • USN-1760-1: linux-lts-backport-oneiric, linux-image-3.0.0-32-server, linux-image-3.0.0-32-generic, linux-image-3.0.0-32-virtual, linux-image-3.0.0-32-generic-pae
  • USN-1778-1: linux-image-3.0.0-1222-omap4, linux-ti-omap4
  • USN-1769-1: linux, linux-image-3.5.0-26-powerpc64-smp, linux-image-3.5.0-26-generic, linux-image-3.5.0-26-omap, linux-image-3.5.0-26-highbank, linux-image-3.5.0-26-powerpc-smp
  • USN-1774-1: linux-ti-omap4, linux-image-3.5.0-221-omap4
  • USN-1768-1: linux-image-3.5.0-26-generic, linux-lts-quantal
  • USN-1743-1: linux-image-3.5.0-25-generic, linux-lts-quantal
  • USN-1745-1: linux-image-3.5.0-220-omap4, linux-ti-omap4
  • USN-1744-1: linux, linux-image-3.5.0-25-powerpc64-smp, linux-image-3.5.0-25-highbank, linux-image-3.5.0-25-generic, linux-image-3.5.0-25-omap, linux-image-3.5.0-25-powerpc-smp

Join the discussion

Need help with your security needs?

Ubuntu Pro provides up to ten-year security coverage for over 23,000 open-source packages within the Ubuntu Main and Universe repositories.

Talk to an expert to find out what would work best for you

Further reading