CVE-2011-2178 Information

Description

The virSecurityManagerGetPrivateData function in security/security_manager.c in libvirt 0.8.8 through 0.9.1 uses the wrong argument for a sizeof call which causes incorrect processing of \security manager private data\ that \reopens disk probing\ and might allow guest OS users to read arbitrary files on the host OS. NOTE: this vulnerability exists because of a CVE-2010-2238 regression.

Reference

http://libvirt.org/news.html http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062515.html http://lists.opensuse.org/opensuse-updates/2011-06/msg00030.html http://people.canonical.com/~ubuntu-security/cve/2011/CVE-2011-2178.html http://www.ubuntu.com/usn/USN-1152-1 https://bugzilla.redhat.com/show_bug.cgi?id=709769 https://bugzilla.redhat.com/show_bug.cgi?id=709775 https://www.redhat.com/archives/libvir-list/2011-May/msg01935.html