Buffer overflow in Mozilla Firefox
CVE-2016-1526
The TtfUtil:LocaLookup function in TtfUtil.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.6.1, incorrectly validates a size value, which allows remote attackers to obtain sensitive information or cause a denial of service (out-of-bounds read and application crash) via a crafted Graphite smart font.
Vulnerability class: Buffer Overflow
EPSS: 0.023 (81.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H.
Affected products
- Mozilla Firefox — versions 38.0, 38.0.1, 38.0.5
- Mozilla Thunderbird
- Sil Graphite2 — versions 1.2.4
- Debian Debian_linux — versions 7.0, 8.0
- Fedoraproject Fedora — versions 22, 23
- N/a — versions n/a
Weakness classification (CWE)
References
- cret@cert.org (vendor-advisory, x_refsource_SUSE)
- cret@cert.org (vendor-advisory, x_refsource_GENTOO)
- cret@cert.org (vdb-entry, x_refsource_BID)
- cret@cert.org (x_refsource_UBUNTU, vendor-advisory)
- cret@cert.org (x_refsource_CONFIRM)
- cret@cert.org (x_refsource_REDHAT, vendor-advisory)
- cret@cert.org (x_refsource_REDHAT, vendor-advisory)
- cret@cert.org (vendor-advisory, x_refsource_SUSE)
- cret@cert.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- cret@cert.org (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2016-1526?
- CVE-2016-1526 is a high-severity vulnerability in Mozilla Firefox, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.1/10. Published 2016-02-13.
- How severe is CVE-2016-1526?
- High severity. CVSS v3 base score is 8.1 out of 10.