Buffer overflow in Mozilla Firefox
CVE-2016-5278
Heap-based buffer overflow in the nsBMPEncoder::AddImageFrame 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 via a crafted image data that is mishandled during the encoding of an image frame to an image.
Vulnerability class: Buffer Overflow
EPSS: 0.042 (89.8th 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 — versions 45.1.0, 45.1.1, 45.2.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@mozilla.org (x_refsource_CONFIRM, Issue Tracking)
- security@mozilla.org (x_refsource_CONFIRM)
- security@mozilla.org (x_refsource_CONFIRM, Vendor Advisory)
- security@mozilla.org (x_refsource_CONFIRM)
- security@mozilla.org (vendor-advisory, x_refsource_DEBIAN)
- security@mozilla.org (vendor-advisory, x_refsource_GENTOO)
- security@mozilla.org (x_refsource_REDHAT, vendor-advisory)
- security@mozilla.org (x_refsource_CONFIRM)
- security@mozilla.org (vdb-entry, x_refsource_BID)
- security@mozilla.org (vdb-entry, x_refsource_SECTRACK)
Frequently asked questions
- What is CVE-2016-5278?
- CVE-2016-5278 is a high-severity vulnerability in Mozilla Firefox, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2016-09-22.
- How severe is CVE-2016-5278?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2016-5278 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.