Buffer overflow in Mozilla Firefox
CVE-2018-12390
Mozilla developers and community members reported memory safety bugs present in Firefox 62 and 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 exp…
Vulnerability class: Buffer Overflow
EPSS: 0.032 (86.8th percentile) — read the EPSS interpretation.
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.
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Thunderbird — versions unspecified
- Canonical Ubuntu_linux — versions 14.04, 16.04, 18.04
- Debian Debian_linux — versions 8.0, 9.0
- Redhat Enterprise_linux_desktop — versions 6.0, 7.0
- Redhat Enterprise_linux_server — versions 6.0, 7.0
- Redhat Enterprise_linux_server_aus — versions 7.6
- Redhat Enterprise_linux_server_eus — versions 7.5, 7.6
- Redhat Enterprise_linux_server_tus — versions 7.6
Weakness classification (CWE)
References
- security@mozilla.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- security@mozilla.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- security@mozilla.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
- security@mozilla.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
- security@mozilla.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security@mozilla.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- security@mozilla.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- security@mozilla.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- security@mozilla.org (x_refsource_CONFIRM, Patch, Issue Tracking, Vendor Advisory)
- security@mozilla.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-12390?
- CVE-2018-12390 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 2019-02-28.
- How severe is CVE-2018-12390?
- Critical severity. CVSS v3 base score is 9.8 out of 10.