Buffer overflow in Mozilla Firefox
CVE-2018-12359
A buffer overflow can occur when rendering canvas content while adjusting the height and width of the canvas element dynamically, causing data to be written outside of the currently computed boundaries. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.
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: 0.046 (91.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.046 · newest: 0.046 · change: 0.000
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Firefox Esr
- Mozilla Thunderbird — versions unspecified, 52.9.1
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
- Debian Linux — versions 8.0, 9.0
- Red Hat Enterprise Linux Desktop — versions 6.0, 7.0
- Red Hat Enterprise Linux Server — versions 6.0, 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.6
- Red Hat Enterprise Linux Server Eus — versions 7.5, 7.6
Weakness classification (CWE)
References
- bugzilla.mozilla.org/show_bug.cgi (Vendor Advisory, Permissions Required, Issue Tracking)
- security.gentoo.org/glsa/201810-01 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/104555 (VDB Entry, Third Party Advisory, vdb-entry)
- www.mozilla.org/security/advisories/mfsa2018-15/ (Vendor Advisory)
- access.redhat.com/errata/RHSA-2018:2112 (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/201811-13 (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2018/dsa-4235 (vendor-advisory, Third Party Advisory)
- www.mozilla.org/security/advisories/mfsa2018-18/ (Vendor Advisory)
- access.redhat.com/errata/RHSA-2018:2113 (vendor-advisory, Third Party Advisory)
- www.mozilla.org/security/advisories/mfsa2018-16/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-12359?
- CVE-2018-12359 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 2018-10-18.
- How severe is CVE-2018-12359?
- High severity. CVSS v3 base score is 8.8 out of 10.