kvm - several vulnerabilities

Several vulnerabilities have been discovered in kvm, a full virtualization system.
The Common Vulnerabilities and Exposures project identifies the
following problems:

• CVE-2008-5714
  Chris Webb discovered an off-by-one bug limiting KVM’s VNC passwords to 7
  characters. This flaw might make it easier for remote attackers to guess the VNC
  password, which is limited to seven characters where eight was intended.
• CVE-2009-3290
  It was discovered that the kvm_emulate_hypercall function in KVM does not
  prevent access to MMU hypercalls from ring 0, which allows local guest OS users
  to cause a denial of service (guest kernel crash) and read or write guest kernel
  memory.

The oldstable distribution (etch) does not contain kvm.

For the stable distribution (lenny), these problems have been fixed in version
72+dfsg-5~lenny3.

For the testing distribution (squeeze) these problems will be fixed soon.

For the unstable distribution (sid) these problems have been fixed in version
85+dfsg-4.1

We recommend that you upgrade your kvm packages.