Mozilla Foundation Security Advisory 2012-106
Title: Use-after-free, buffer overflow, and memory corruption issues found using Address Sanitizer
Announced: November 20, 2012
Products: Firefox, Thunderbird, SeaMonkey
Fixed in: Firefox 17.0
Firefox ESR 10.0.11
Thunderbird ESR 10.0.11
Security researcher miaubiz used the Address Sanitizer tool to discover a series critically rated of use-after-free, buffer overflow, and memory corruption issues in shipped software. These issues are potentially exploitable, allowing for remote code execution. We would also like to thank miaubiz for reporting two additional use-after-free and memory corruption issues introduced during Firefox development that were fixed before general release.
In general these flaws cannot be exploited through email in the Thunderbird and SeaMonkey products because scripting is disabled, but are potentially a risk in browser or browser-like contexts in those products.
The following issues were fixed in Firefox 17 and ESR 10.0.11:
- use-after-free when loading html file on osx (CVE-2012-5830)
- Mesa crashes on certain texImage2D calls involving level>0 (CVE-2012-5833)
- integer overflow, invalid write w/webgl bufferdata (CVE-2012-5835)
The following issues were fixed in Firefox 17: