Related Vulnerabilities: CVE-2018-18504  

A memory corruption and out-of-bounds read have been found in Firefox < 65.0, that can occur when the buffer of a texture client is freed while it is still in use during graphic operations. This results in a potentially exploitable crash and the possibility of reading from the memory of the freed buffers.

Severity High

Remote Yes

Type Arbitrary code execution

Description

A memory corruption and out-of-bounds read have been found in Firefox < 65.0, that can occur when the buffer of a texture client is freed while it is still in use during graphic operations. This results in a potentially exploitable crash and the possibility of reading from the memory of the freed buffers.

AVG-862 firefox 64.0.2-1 65.0-1 Critical Fixed

06 Feb 2019 ASA-201902-2 AVG-862 firefox Critical multiple issues

https://www.mozilla.org/en-US/security/advisories/mfsa2019-01/#CVE-2018-18504
https://bugzilla.mozilla.org/show_bug.cgi?id=1496413