Integer overflow in Mozilla Firefox
CVE-2018-12361
An integer overflow can occur in the SwizzleData code while calculating buffer sizes. The overflowed value is used for subsequent graphics computations when their inputs are not sanitized which results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Firefox ESR < 60.1, and Firefox < 61.
Vulnerability class: Integer 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: 0.028 (86.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Firefox Esr
- Mozilla Thunderbird — versions unspecified
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
References
- security.gentoo.org/glsa/201810-01 (vendor-advisory, Third Party Advisory, Mitigation)
- www.mozilla.org/security/advisories/mfsa2018-15/ (Vendor Advisory)
- lists.debian.org/debian-lts-announce/2018/11/msg00011.html (mailing-list, Third Party Advisory)
- security.gentoo.org/glsa/201811-13 (vendor-advisory, Third Party Advisory, Mitigation)
- www.debian.org/security/2018/dsa-4295 (vendor-advisory, Third Party Advisory)
- www.mozilla.org/security/advisories/mfsa2018-16/ (Vendor Advisory)
- www.securitytracker.com/id/1041193 (VDB Entry, Third Party Advisory, vdb-entry)
- www.mozilla.org/security/advisories/mfsa2018-19/ (Vendor Advisory)
- bugzilla.mozilla.org/show_bug.cgi (Permissions Required, Issue Tracking)
- www.securityfocus.com/bid/104558 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-12361?
- CVE-2018-12361 is a high-severity vulnerability in Mozilla Firefox, classified under Integer Overflow or Wraparound. CVSS score: 8.8/10. Published 2018-10-18.
- How severe is CVE-2018-12361?
- High severity. CVSS v3 base score is 8.8 out of 10.