Use After Free in Mozilla Firefox
CVE-2020-12416
A VideoStreamEncoder may have been freed in a race condition with VideoBroadcaster::AddOrUpdateSink, resulting in a use-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 78.
Vulnerability class: Race Condition
EPSS: 0.013 (68.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Mozilla Firefox — versions unspecified
- Opensuse Leap — versions 15.1, 15.2
Weakness classification (CWE)
References
- security@mozilla.org (x_refsource_MISC, Vendor Advisory)
- security@mozilla.org (Exploit, x_refsource_MISC, Issue Tracking, Vendor Advisory)
- security@mozilla.org (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- security@mozilla.org (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- security@mozilla.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2020-12416?
- CVE-2020-12416 is a high-severity vulnerability in Mozilla Firefox, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 8.8/10. Published 2020-07-09.
- How severe is CVE-2020-12416?
- High severity. CVSS v3 base score is 8.8 out of 10.