Buffer overflow in Mozilla Firefox
CVE-2016-1974
The nsScannerString::AppendUnicodeTo function in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7 does not verify that memory allocation succeeds, which allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds read) via crafted Unicode data in an HTML, XML, or SVG document.
Vulnerability class: Buffer Overflow
EPSS: 0.030 (85.8th 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 38.0, 38.0.1, 38.0.5
- Mozilla Thunderbird
- Oracle Linux — versions 5.0, 6, 7
- Opensuse Leap — versions 42.1
- Opensuse — versions 13.1, 13.2
- Suse Linux_enterprise — versions 12.0
- N/a — versions n/a
Weakness classification (CWE)
References
- security@mozilla.org (vendor-advisory, Third Party Advisory, x_refsource_SUSE)
- security@mozilla.org (x_refsource_CONFIRM, Vendor Advisory)
- security@mozilla.org (vendor-advisory, x_refsource_SUSE)
- security@mozilla.org (vendor-advisory, Third Party Advisory, x_refsource_SUSE)
- security@mozilla.org (x_refsource_CONFIRM, Third Party Advisory)
- security@mozilla.org (vendor-advisory, x_refsource_SUSE)
- security@mozilla.org (vendor-advisory, x_refsource_SUSE)
- security@mozilla.org (vendor-advisory, Third Party Advisory, x_refsource_SUSE)
- security@mozilla.org (vendor-advisory, x_refsource_SUSE)
- security@mozilla.org (x_refsource_UBUNTU, vendor-advisory)
Frequently asked questions
- What is CVE-2016-1974?
- CVE-2016-1974 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 2016-03-13.
- How severe is CVE-2016-1974?
- High severity. CVSS v3 base score is 8.8 out of 10.