Buffer overflow in Mozilla Firefox
CVE-2018-5089
Memory safety bugs were reported in Firefox 57 and Firefox ESR 52.5. 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 Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58.
Vulnerability class: Buffer Overflow
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: 0.033 (88.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.1% 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 — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Thunderbird — versions unspecified
- 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 Workstation — versions 6.0, 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.mozilla.org/security/advisories/mfsa2018-03/ (Vendor Advisory)
- www.securitytracker.com/id/1040270 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.debian.org/debian-lts-announce/2018/01/msg00036.html (mailing-list, Mailing List, Third Party Advisory)
- www.securityfocus.com/bid/102783 (VDB Entry, Third Party Advisory, vdb-entry)
- www.debian.org/security/2018/dsa-4096 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:0262 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3544-1/ (vendor-advisory, Third Party Advisory)
- www.mozilla.org/security/advisories/mfsa2018-04/ (Vendor Advisory)
- access.redhat.com/errata/RHSA-2018:0122 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3688-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-5089?
- CVE-2018-5089 is a critical-severity vulnerability in Mozilla Firefox, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2018-06-11.
- How severe is CVE-2018-5089?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-5089 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.