Mesa, as used in Google Chrome before 21.0.1183.0 on the Acer AC700, Cr-48, and Samsung Series 5 and 5 550 Chromebook platforms, and the Samsung Chromebox Series 3, allows remote attackers to execute arbitrary code via unspecified vectors that trigger an "array overflow."
http://code.google.com/p/chromium/issues/detail?id=141901
http://googlechromereleases.blogspot.com/2012/08/stable-channel-update-for-chrome-os.html
http://secunia.com/advisories/51215
https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0264
http://www.mandriva.com/security/advisories?name=MDVSA-2013:103