A segmentation fault can occur in the Skia graphics library during some canvas operations due to issues with mask/clip intersection and empty masks. This vulnerability affects Firefox < 52 and Thunderbird < 52.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1306890 | issue tracking exploit patch |
| https://www.mozilla.org/security/advisories/mfsa2017-09/ | vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2017-05/ | vendor advisory |
| http://www.securitytracker.com/id/1037966 | vdb entry third party advisory |
| http://www.securityfocus.com/bid/96692 | vdb entry third party advisory |