Ubuntu Security Notice 1180-1 - Eric Blake discovered an integer overflow flaw in libvirt. A remote authenticated attacker could exploit this by sending a crafted VCPU RPC call and cause a denial of service via application crash.
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Ubuntu Security Notice USN-1180-1
July 28, 2011
libvirt vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS
Summary:
An authenticated attacker could send crafted input to libvirt and cause it
to crash.
Software Description:
- libvirt: Libvirt virtualization toolkit
Details:
Eric Blake discovered an integer overflow flaw in libvirt. A remote
authenticated attacker could exploit this by sending a crafted VCPU RPC
call and cause a denial of service via application crash.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 11.04:
libvirt-bin 0.8.8-1ubuntu6.5
Ubuntu 10.10:
libvirt-bin 0.8.3-1ubuntu19.1
Ubuntu 10.04 LTS:
libvirt-bin 0.7.5-5ubuntu27.16
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1180-1
CVE-2011-2511
Package Information:
https://launchpad.net/ubuntu/+source/libvirt/0.8.8-1ubuntu6.5
https://launchpad.net/ubuntu/+source/libvirt/0.8.3-1ubuntu19.1
https://launchpad.net/ubuntu/+source/libvirt/0.7.5-5ubuntu27.16