CVE-2010-4078

Published: 29 November 2010

The sisfb_ioctl function in drivers/video/sis/sis_main.c in the Linux kernel before 2.6.36-rc6 does not properly initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel stack memory via an FBIOGET_VBLANK ioctl call.

From the Ubuntu security team

Dan Rosenberg discovered that the SiS video driver did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.

Priority

Low

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.36~rc6)
Patches:
Upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fd02db9de73faebc51240619c7c7f99bee9f65c7
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.36~rc6)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.36~rc6)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.36~rc6)
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.36~rc6)
linux-source-2.6.15
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.36~rc6)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.36~rc6)