Use-after-free in Developer Console date with OpenType Sanitiser

Use-after-free in Developer Console date with OpenType Sanitiser

Announced

February 24, 2015

Reporter

Atte Kettunen

Impact

Low

Products

Firefox

Fixed in

• Firefox 36

Description

Using the Address Sanitizer tool, security researcher Atte Kettunen found a problem with OpenType Sanitiser (OTS) that resulted in a use-after-free while expanding macros in some circumstances. This use-after-free was only used for information displayed in the developer console and was not exploitable.

References

• Heap-use-after-free in ots::ots_gasp_parse (CVE-2015-0823)