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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.030 (86.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000
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
Weakness classification (CWE)
References
- lists.opensuse.org/opensuse-security-announce/2016-03/msg00091.html (vendor-advisory, Third Party Advisory)
- www.mozilla.org/security/announce/2016/mfsa2016-34.html (Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2016-03/msg00068.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2016-07/msg00006.html (vendor-advisory, Third Party Advisory)
- www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html (Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2016-03/msg00029.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2016-03/msg00027.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2016-07/msg00008.html (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2016-03/msg00089.html (vendor-advisory)
- www.ubuntu.com/usn/USN-2917-1 (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.