Guido Günther uploaded new packages for libvirt which fixed the
following security problems:
CVE-2011-2511
Integer overflow in VirDomainGetVcpus
CVE-2011-1486
Non thread safe error reporting
For the squeeze-backports distribution the problems have been fixed in
version 0.9.2-7~bpo60+1.
For the lenny-backports distribution the problems have been fixed in
version 0.8.3-5+squeeze2~bpo50+2.
For lenny-backports only:
If you don't use pinning (see [1]) you have to update the package
manually via "apt-get -t lenny-backports install <packagelist>" with
the packagelist of your installed packages affected by this update.
[1] <https://backports.debian.org/Instructions>
We recommend to pin (in /etc/apt/preferences) the backports repository
to 200 so that new versions of installed backports will be installed
automatically.
Package: *
Pin: release a=lenny-backports
Pin-Priority: 200