CVE-2018-12379
First published: Wed Sep 05 2018(Updated: )
When the Mozilla Updater opens a MAR format file which contains a very long item filename, an out-of-bounds write can be triggered, leading to a potentially exploitable crash. This requires running the Mozilla Updater manually on the local system with the malicious MAR file in order to occur.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/firefox | 121.0-2 | |
| debian/firefox-esr | 91.12.0esr-1~deb10u1 115.6.0esr-1~deb10u1 102.15.0esr-1~deb11u1 115.6.0esr-1~deb11u1 115.5.0esr-1~deb12u1 115.6.0esr-1~deb12u1 115.6.0esr-1 | |
| debian/thunderbird | 1:91.12.0-1~deb10u1 1:115.6.0-1~deb10u1 1:102.13.1-1~deb11u1 1:115.6.0-1~deb11u1 1:115.5.0-1~deb12u1 1:115.6.0-1~deb12u1 1:115.6.0-1 | |
| Thunderbird | <60.2.1 | 60.2.1 |
| Red Hat Enterprise Linux Desktop | =6.0 | |
| Red Hat Enterprise Linux Desktop | =7.0 | |
| Red Hat Enterprise Linux Server | =6.0 | |
| Red Hat Enterprise Linux Server | =7.0 | |
| Red Hat Enterprise Linux Server | =7.6 | |
| Red Hat Enterprise Linux Server | =7.5 | |
| Red Hat Enterprise Linux Server | =7.6 | |
| Red Hat Enterprise Linux Server | =7.6 | |
| Red Hat Enterprise Linux Workstation | =6.0 | |
| Red Hat Enterprise Linux Workstation | =7.0 | |
| Debian | =8.0 | |
| Debian | =9.0 | |
| Firefox | <62.0 | |
| Firefox ESR | <60.2.0 | |
| Thunderbird | <60.2.1 | |
| Firefox | <62 | 62 |
| Firefox ESR | <60.2 | 60.2 |
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Reference Links
- http://www.securityfocus.com/bid/105280
- http://www.securitytracker.com/id/1041610
- https://access.redhat.com/errata/RHSA-2018:2692
- https://access.redhat.com/errata/RHSA-2018:2693
- https://access.redhat.com/errata/RHSA-2018:3403
- https://access.redhat.com/errata/RHSA-2018:3458
- https://bugzilla.mozilla.org/show_bug.cgi?id=1473113
- https://lists.debian.org/debian-lts-announce/2018/11/msg00011.html
- https://security.gentoo.org/glsa/201810-01
- https://security.gentoo.org/glsa/201811-13
- https://www.debian.org/security/2018/dsa-4327
- https://www.mozilla.org/security/advisories/mfsa2018-20/
- https://www.mozilla.org/security/advisories/mfsa2018-21/
- https://www.mozilla.org/security/advisories/mfsa2018-25/
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-20/#CVE-2018-12379
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-21/#CVE-2018-12379
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-25/#CVE-2018-12379
- https://security-tracker.debian.org/tracker/CVE-2018-12379
- https://bugzilla.redhat.com/show_bug.cgi?id=1625528
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-21/
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-20/
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-25/
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2018-12379?
CVE-2018-12379 has a moderate severity rating due to its potential for causing a crash.
How do I fix CVE-2018-12379?
To fix CVE-2018-12379, update your Mozilla Firefox or Thunderbird to the specified remedied versions.
Which software is affected by CVE-2018-12379?
CVE-2018-12379 affects Mozilla Firefox, Firefox ESR, and Thunderbird versions prior to their respective fixed releases.
What is the nature of the vulnerability in CVE-2018-12379?
CVE-2018-12379 is an out-of-bounds write vulnerability that can occur when processing a MAR file with a long filename.
Can CVE-2018-12379 be exploited remotely?
No, exploiting CVE-2018-12379 requires local execution of the Mozilla Updater with the malicious MAR file.
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