Use After Free in Mozilla Firefox
CVE-2016-5277
Use-after-free vulnerability in the nsRefreshDriver::Tick function in Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4, and Thunderbird < 45.4 allows remote attackers to execute arbitrary code or cause a denial of service (heap me…
Vulnerability class: Use-After-Free
EPSS: 0.023 (84.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Mozilla Firefox — versions 45.1.0, 45.1.1, 45.2.0
- N/a — versions n/a
Weakness classification (CWE)
References
- security@mozilla.org (x_refsource_CONFIRM)
- security@mozilla.org (x_refsource_CONFIRM, Vendor Advisory)
- security@mozilla.org (x_refsource_CONFIRM)
- DSA-3674 (vendor-advisory, x_refsource_DEBIAN)
- security@mozilla.org (x_refsource_CONFIRM, Issue Tracking)
- GLSA-201701-15 (vendor-advisory, x_refsource_GENTOO)
- RHSA-2016:1912 (x_refsource_REDHAT, vendor-advisory)
- security@mozilla.org (x_refsource_CONFIRM)
- 93049 (vdb-entry, x_refsource_BID)
- 1036852 (vdb-entry, x_refsource_SECTRACK)
Frequently asked questions
- What is CVE-2016-5277?
- CVE-2016-5277 is a critical-severity vulnerability in Mozilla Firefox, classified under Use After Free. CVSS score: 9.8/10. Published 2016-09-22.
- How severe is CVE-2016-5277?
- Critical severity. CVSS v3 base score is 9.8 out of 10.