Use After Free in Mozilla Firefox
CVE-2018-5155
A use-after-free vulnerability can occur while adjusting layout during SVG animations with text paths. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR < 52.8.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.034 (88.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.034 · newest: 0.034 · change: 0.000
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Thunderbird — versions unspecified
- Mozilla Thunderbird Esr — versions unspecified
- Mozilla Thunderbird Esr
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
- Debian Linux — versions 7.0, 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
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2018:1415 (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/201810-01 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:1726 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:1414 (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/201811-13 (vendor-advisory, Third Party Advisory)
- www.mozilla.org/security/advisories/mfsa2018-13/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2018-11/ (Vendor Advisory)
- usn.ubuntu.com/3660-1/ (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1040896 (VDB Entry, Third Party Advisory, vdb-entry)
- www.debian.org/security/2018/dsa-4199 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-5155?
- CVE-2018-5155 is a critical-severity vulnerability in Mozilla Firefox, classified under Use After Free. CVSS score: 9.8/10. Published 2018-06-11.
- How severe is CVE-2018-5155?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-5155 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.