Buffer overflow in Mozilla Firefox
CVE-2018-12389
Mozilla developers and community members reported memory safety bugs present in Firefox ESR 60.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox ESR < 60.3 and Thunderbird < 60.3.
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: 0.023 (83.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
- Mozilla Firefox
- Mozilla Firefox Esr — versions unspecified
- Mozilla Thunderbird — versions unspecified
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- 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
- Red Hat Enterprise Linux Server Tus — versions 7.6
Weakness classification (CWE)
References
- www.securityfocus.com/bid/105769 (VDB Entry, Third Party Advisory, vdb-entry)
- www.debian.org/security/2018/dsa-4324 (vendor-advisory, Third Party Advisory)
- www.mozilla.org/security/advisories/mfsa2018-28/ (Vendor Advisory)
- lists.debian.org/debian-lts-announce/2018/11/msg00011.html (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/201811-04 (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/201811-13 (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2018/dsa-4337 (vendor-advisory, Third Party Advisory)
- www.mozilla.org/security/advisories/mfsa2018-27/ (Vendor Advisory)
- access.redhat.com/errata/RHSA-2018:3005 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3006 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-12389?
- CVE-2018-12389 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 2019-02-28.
- How severe is CVE-2018-12389?
- High severity. CVSS v3 base score is 8.8 out of 10.