CVE-2017-5448

Source
Severity High
Remote Yes
Type Arbitrary code execution
Description
A security issue has been found in Firefox < 53, an out-of-bounds write in ClearKeyDecryptor while decrypting some Clearkey-encrypted media content. The ClearKeyDecryptor code runs within the Gecko Media Plugin (GMP) sandbox. If a second mechanism is found to escape the sandbox, this vulnerability allows for the writing of arbitrary data within memory, resulting in a potentially exploitable crash.
Group Package Affected Fixed Severity Status Ticket
AVG-249 firefox 52.0.2-1 53.0-1 Critical Fixed
Date Advisory Group Package Severity Description
21 Apr 2017 ASA-201704-6 AVG-249 firefox Critical multiple issues
References
https://www.mozilla.org/en-US/security/advisories/mfsa2017-10/#CVE-2017-5448
https://bugzilla.mozilla.org/show_bug.cgi?id=1346648