Use After Free in Mozilla Firefox
CVE-2016-5255
Use-after-free vulnerability in the js::PreliminaryObjectArray::sweep function in Mozilla Firefox before 48.0 allows remote attackers to execute arbitrary code via crafted JavaScript that is mishandled during incremental garbage collection.
Vulnerability class: Use-After-Free
EPSS: 0.024 (82.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Mozilla Firefox
- N/a — versions n/a
Weakness classification (CWE)
References
- security@mozilla.org (vdb-entry, x_refsource_SECTRACK)
- security@mozilla.org (x_refsource_UBUNTU, vendor-advisory)
- security@mozilla.org (Permissions Required, x_refsource_CONFIRM, Issue Tracking)
- security@mozilla.org (vdb-entry, x_refsource_BID)
- security@mozilla.org (vendor-advisory, x_refsource_GENTOO)
- security@mozilla.org (vendor-advisory, x_refsource_SUSE)
- security@mozilla.org (x_refsource_CONFIRM, Vendor Advisory)
- security@mozilla.org (vendor-advisory, x_refsource_SUSE)
Frequently asked questions
- What is CVE-2016-5255?
- CVE-2016-5255 is a high-severity vulnerability in Mozilla Firefox, classified under Use After Free. CVSS score: 8.8/10. Published 2016-08-05.
- How severe is CVE-2016-5255?
- High severity. CVSS v3 base score is 8.8 out of 10.