Use After Free in Mozilla Firefox
CVE-2016-5254
Use-after-free vulnerability in the nsXULPopupManager::KeyDown function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows attackers to execute arbitrary code or cause a denial of service (heap memory corruption and app…
Vulnerability class: Use-After-Free
EPSS: 0.015 (81.7th 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
- Oracle Linux — versions 5.0, 6, 7
- N/a — versions n/a
Weakness classification (CWE)
References
- DSA-3640 (vendor-advisory, x_refsource_DEBIAN)
- 1036508 (vdb-entry, x_refsource_SECTRACK)
- security@mozilla.org (Permissions Required, x_refsource_CONFIRM, Issue Tracking)
- security@mozilla.org (x_refsource_CONFIRM, Third Party Advisory)
- security@mozilla.org (x_refsource_CONFIRM, Vendor Advisory)
- USN-3044-1 (x_refsource_UBUNTU, vendor-advisory)
- RHSA-2016:1551 (x_refsource_REDHAT, vendor-advisory)
- GLSA-201701-15 (vendor-advisory, x_refsource_GENTOO)
- openSUSE-SU-2016:1964 (vendor-advisory, x_refsource_SUSE)
- 92261 (vdb-entry, x_refsource_BID)
Frequently asked questions
- What is CVE-2016-5254?
- CVE-2016-5254 is a critical-severity vulnerability in Mozilla Firefox, classified under Use After Free. CVSS score: 9.8/10. Published 2016-08-05.
- How severe is CVE-2016-5254?
- Critical severity. CVSS v3 base score is 9.8 out of 10.