A xen-qemu-dm-4.0 security update has been released for Debian GNU/Linux

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Debian Security Advisory DSA-2404-1 security@debian.org
http://www.debian.org/security/ Florian Weimer
February 05, 2012 http://www.debian.org/security/faq
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Package : xen-qemu-dm-4.0
Vulnerability : buffer overflow
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 QEMU, which is used in the xen-qemu-dm-4.0
packages. This vulnerability might enable to malicious guest systems
to crash the host system or escalate their privileges.

The old stable distribution (lenny) does not contain the
xen-qemu-dm-4.0 package.

For the stable distribution (squeeze), this problem has been fixed in
version 4.0.1-2+squeeze1.

The testing distribution (wheezy) and the unstable distribution (sid)
will be fixed soon.

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/