Integer overflow in Mozilla Firefox
CVE-2018-5144
An integer overflow can occur during conversion of text to some Unicode character sets due to an unchecked length parameter. This vulnerability affects Firefox ESR < 52.7 and Thunderbird < 52.7.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.033 (88.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.033 · newest: 0.033 · change: 0.000
Affected products
- Mozilla Firefox
- Mozilla Firefox Esr — versions unspecified
- Mozilla Thunderbird — versions unspecified
- 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 7.4
- Red Hat Enterprise Linux Server Eus — versions 7.2, 7.4, 7.5
- Red Hat Enterprise Linux Workstation — versions 6.0, 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.debian.org/security/2018/dsa-4139 (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/201810-01 (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/201811-13 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:0527 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3545-1/ (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/03/msg00010.html (mailing-list, Mailing List, Third Party Advisory)
- www.mozilla.org/security/advisories/mfsa2018-09/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2018-07/ (Vendor Advisory)
- access.redhat.com/errata/RHSA-2018:0526 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/03/msg00029.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-5144?
- CVE-2018-5144 is a high-severity vulnerability in Mozilla Firefox, classified under Integer Overflow or Wraparound. CVSS score: 7.3/10. Published 2018-06-11.
- How severe is CVE-2018-5144?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2018-5144 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.