CVE-2018-12361
An integer overflow can occur in the SwizzleData code while calculating buffer sizes.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.82%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 2.82% probability · 86th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- mozilla/firefox · mozilla/firefox esr · mozilla/thunderbird · debian/debian linux · canonical/ubuntu linux
- Source
- security@mozilla.org
EPSS 2.8% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/104558Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041193Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1463244Issue Tracking, Permissions Required
- https://lists.debian.org/debian-lts-announce/2018/11/msg00011.htmlThird Party Advisory
- https://security.gentoo.org/glsa/201810-01Mitigation, Third Party Advisory
- https://security.gentoo.org/glsa/201811-13Mitigation, Third Party Advisory
- https://usn.ubuntu.com/3705-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4295Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-15/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-16/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-19/Vendor Advisory
- http://www.securityfocus.com/bid/104558Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041193Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1463244Issue Tracking, Permissions Required
- https://lists.debian.org/debian-lts-announce/2018/11/msg00011.htmlThird Party Advisory
- https://security.gentoo.org/glsa/201810-01Mitigation, Third Party Advisory
- https://security.gentoo.org/glsa/201811-13Mitigation, Third Party Advisory
- https://usn.ubuntu.com/3705-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4295Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-15/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-16/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-19/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.