A use after free in PDFium in Google Chrome prior to 57.0.2987.98 for Mac, Windows, and Linux and 57.0.2987.108 for Android allowed a remote attacker to potentially exploit heap corruption via a crafted PDF file.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
| Link | Tags |
|---|---|
| https://chromereleases.googleblog.com/2017/03/stable-channel-update-for-desktop.html | |
| https://security.gentoo.org/glsa/201704-02 | vendor advisory |
| http://www.debian.org/security/2017/dsa-3810 | vendor advisory |
| http://www.securityfocus.com/bid/96767 | vdb entry |
| http://rhn.redhat.com/errata/RHSA-2017-0499.html | vendor advisory |
| https://crbug.com/679649 |