Google Chrome before 11.0.696.57 does not properly handle PDF documents with multipart encoding, which allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted document.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14136
https://exchange.xforce.ibmcloud.com/vulnerabilities/67161
http://googlechromereleases.blogspot.com/2011/04/chrome-stable-update.html