USN-1915-1: Linux kernel (Quantal HWE) vulnerability

Releases

• Ubuntu 12.04

Packages

• linux-lts-quantal - Linux hardware enablement kernel from Quantal

Details

Kees Cook discovered a format string vulnerability in the Broadcom B43
wireless driver for the Linux kernel. A local user could exploit this flaw
to gain administrative privileges.

Update instructions

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

Ubuntu 12.04

• linux-image-3.5.0-37-generic - 3.5.0-37.58~precise1

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.

References

• CVE-2013-2852

Related notices

• USN-1930-1
• USN-1936-1
• USN-1900-1
• USN-1918-1
• USN-1914-1
• USN-1919-1
• USN-1917-1
• USN-1899-1
• USN-1920-1