A qemu-kvm security update has been released for Debian GNU/Linux

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Debian Security Advisory DSA-2396-1 security@debian.org
http://www.debian.org/security/ Moritz Muehlenhoff
January 27, 2012 http://www.debian.org/security/faq
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Package : qemu-kvm
Vulnerability : buffer underflow
Problem type : remote
Debian-specific: no
CVE ID : CVE-2012-0029

Nicolae Mogoraenu discovered a heap overflow in the emulated e1000e
network interface card of KVM, a solution for full virtualization on
x86 hardware, which could result in denial of service or privilege
escalation.

This update also fixes a guest-triggerable memory corruption in
VNC handling.

For the stable distribution (squeeze), this problem has been fixed in
version 0.12.5+dfsg-5+squeeze8.

For the unstable distribution (sid), this problem has been fixed in
version 1.0+dfsg-5.

We recommend that you upgrade your qemu-kvm 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/