Debian Security Advisory

DSA-2012-1 linux-2.6 -- privilege escalation/denial of service

Date Reported:
11 Mar 2010
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 568561, Bug 570554.
In Mitre's CVE dictionary: CVE-2009-3725, CVE-2010-0622.
More information:

Two vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or privilege escalation. The Common Vulnerabilities and Exposures project identifies the following problems:

  • CVE-2009-3725

    Philipp Reisner reported an issue in the connector subsystem which allows unprivileged users to send netlink packets. This allows local users to manipulate settings for uvesafb devices which are normally reserved for privileged users.

  • CVE-2010-0622

    Jerome Marchand reported an issue in the futex subsystem that allows a local user to force an invalid futex state which results in a denial of service (oops).

This update also includes fixes for regressions introduced by previous updates. See the referenced Debian bug pages for details.

For the stable distribution (lenny), this problem has been fixed in version 2.6.26-21lenny4.

We recommend that you upgrade your linux-2.6 and user-mode-linux packages.

The following matrix lists additional source packages that were rebuilt for compatibility with or to take advantage of this update:

  Debian 5.0 (lenny)
user-mode-linux 2.6.26-1um-2+21lenny4
Fixed in:

Debian GNU/Linux 5.0 (lenny)

Architecture-independent component:
HP Precision:
Intel IA-32:
Intel IA-64:
Big-endian MIPS:
Little-endian MIPS:
IBM S/390:
Sun Sparc:

MD5 checksums of the listed files are available in the original advisory.