[SECURITY] [DSA 1846-1] New kvm packages fix denial of service

ID DEBIAN:DSA-1846-1:56107
Type debian
Reporter Debian
Modified 2009-07-29T05:32:44


Debian Security Advisory DSA-1846-1 security@debian.org http://www.debian.org/security/ Dann Frazier July 28, 2009 http://www.debian.org/security/faq

Package : kvm Vulnerability : denial of service Problem type : local Debian-specific: no CVE Id(s) : CVE-2009-2287

Matt T. Yourst discovered an issue in the kvm subsystem. Local users with permission to manipulate /dev/kvm can cause a denial of service (hang) by providing an invalid cr3 value to the KVM_SET_SREGS call.

For the stable distribution (lenny), these problems have been fixed in version 72+dfsg-5~lenny2.

For the unstable distribution (sid), these problems will be fixed soon.

We recommend that you upgrade your kvm packages, and rebuild any kernel modules you have built from a kvm-source package version.

Upgrade instructions

wget url will fetch the file for you dpkg -i file.deb will install the referenced file.

If you are using the apt-get package manager, use the line for sources.list as given below:

apt-get update will update the internal database apt-get upgrade will install corrected packages

You may use an automated update by adding the resources from the footer to the proper configuration.

Debian GNU/Linux 5.0 alias lenny

Stable updates are available for amd64 and i386.

Source archives:

http://security.debian.org/pool/updates/main/k/kvm/kvm_72+dfsg.orig.tar.gz Size/MD5 checksum: 3250251 899a66ae2ea94e994e06f637e1afef4a http://security.debian.org/pool/updates/main/k/kvm/kvm_72+dfsg-5~lenny2.dsc Size/MD5 checksum: 1340 e95d1e3129dd6eb2d7b139504a8682d5 http://security.debian.org/pool/updates/main/k/kvm/kvm_72+dfsg-5~lenny2.diff.gz Size/MD5 checksum: 40508 22d3f4b490752c1db13affc506896f59

Architecture independent packages:

http://security.debian.org/pool/updates/main/k/kvm/kvm-source_72+dfsg-5~lenny2_all.deb Size/MD5 checksum: 157856 593b7d018dc15553d1c690c941ff0dd7

amd64 architecture (AMD x86_64 (AMD64))

http://security.debian.org/pool/updates/main/k/kvm/kvm_72+dfsg-5~lenny2_amd64.deb Size/MD5 checksum: 1105650 e29a433d9d83be7bf22dfb8297e3b63f

i386 architecture (Intel ia32)

http://security.debian.org/pool/updates/main/k/kvm/kvm_72+dfsg-5~lenny2_i386.deb Size/MD5 checksum: 1034054 39113a71cf5fdbafcaed9f3f58ae2369

These files will probably be moved into the stable distribution on its next update.

For apt-get: deb http://security.debian.org/ stable/updates main For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main Mailing list: debian-security-announce@lists.debian.org Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>