The MITRE CVE dictionary describes this issue as:
Multiple integer overflows in libxml2, as used in Google Chrome before 20.0.1132.43 and other products, on 64-bit Linux platforms allow remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.
Find out more about CVE-2012-2807 from the
MITRE CVE dictionary dictionary and
This issue affected the version of libxml2 as shipped with Red Hat Enterprise Linux 5 and 6 has been addressed via RHSA-2012:1288. This issue does not affect the version of mingw32-libxml2 as shipped with Red Hat Enterprise Linux 6.