CVE-2017-5433
Mozilla: Use-after-free in SMIL animation functions (MFSA 2017-11, MFSA 2017-12)
Severity
CriticalRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · April 19, 2017
Updated · November 21, 2025
Description
A use-after-free vulnerability in SMIL animation functions occurs when pointers to animation elements in an array are dropped from the animation controller while still in use. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE not specified