CVE-2018-12366

Name: CVE-2018-12366
Creator: NVD / NIST
Published: 2018-10-18T13:29:02.727+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.16%

Last modified Jun 17, 2026

CVE-2018-12366 is a vulnerability of currently unknown severity. An invalid grid size during QCMS (color profile) transformations can result in the out-of-bounds read interpreted as a float value. This could leak private data into the output. EPSS estimates a 3.16% chance of exploitation in the next 30 days.

Description

An invalid grid size during QCMS (color profile) transformations can result in the out-of-bounds read interpreted as a float value. This could leak private data into the output. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

Metrics

EPSS Probability

3.16%

86.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Redhat	Enterprise Linux Desktop	6.0
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	6.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server Aus	7.6
Redhat	Enterprise Linux Server Eus	7.5
Redhat	Enterprise Linux Server Eus	7.6
Redhat	Enterprise Linux Server Tus	7.6
Redhat	Enterprise Linux Workstation	6.0
Redhat	Enterprise Linux Workstation	7.0
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	17.10
Canonical	Ubuntu Linux	18.04
Mozilla	Firefox	< 61.0
Mozilla	Firefox	>= 53.0, < 60.1.0
Mozilla	Firefox Esr	< 52.9
Mozilla	Thunderbird	< 52.9
Mozilla	Thunderbird	>= 52.9.1, < 60.0

References

http://www.securityfocus.com/bid/104560Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041193Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:2112Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2113Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2251Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2252Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1464039Issue Tracking, Permissions Required, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/06/msg00014.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00013.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201810-01Third Party Advisory
https://security.gentoo.org/glsa/201811-13Third Party Advisory
https://usn.ubuntu.com/3705-1/Third Party Advisory
https://usn.ubuntu.com/3714-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4235Third Party Advisory
https://www.debian.org/security/2018/dsa-4244Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-15/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-16/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-17/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-18/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-19/Vendor Advisory
http://www.securityfocus.com/bid/104560Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041193Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:2112Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2113Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2251Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2252Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1464039Issue Tracking, Permissions Required, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/06/msg00014.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00013.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201810-01Third Party Advisory
https://security.gentoo.org/glsa/201811-13Third Party Advisory
https://usn.ubuntu.com/3705-1/Third Party Advisory
https://usn.ubuntu.com/3714-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4235Third Party Advisory
https://www.debian.org/security/2018/dsa-4244Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-15/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-16/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-17/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-18/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-19/Vendor Advisory

Timeline

Published: Oct 18, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-12366?

How severe is CVE-2018-12366?

Severity scoring for CVE-2018-12366 is pending analysis. The EPSS model estimates a 3.16% probability of exploitation in the next 30 days.

How do I fix CVE-2018-12366?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-12366?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST