Debian: DSA-2636-1: xen security update
Summary
Multiple vulnerabilities have been discovered in the Xen hypervisor. The
Common Vulnerabilities and Exposures project identifies the following
problems:
CVE-2012-4544
Insufficient validation of kernel or ramdisk sizes in the Xen PV
domain builder could result in denial of service.
CVE-2012-5511
Several HVM control operations performed insufficient validation of
input, which could result in denial of service through resource
exhaustion.
CVE-2012-5634
Incorrect interrupt handling when using VT-d hardware could result
in denial of service.
CVE-2013-0153
Insufficient restriction of interrupt access could result in denial
of service.
For the stable distribution (squeeze), these problems have been fixed in
version 4.0.1-5.7.
For the testing distribution (wheezy), these problems have been fixed in
version 4.1.4-2.
For the unstable distribution (sid), these problems have been fixed in
version 4.1.4-2.
We recommend that you upgrade your xen packages.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org