CVE-2018-12379

NameCVE-2018-12379
DescriptionWhen 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. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-1575-1, DSA-4327-1
NVD severitymedium (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid64.0-1fixed
firefox-esr (PTS)jessie52.8.1esr-1~deb8u1vulnerable
jessie (security)60.4.0esr-1~deb8u1fixed
stretch60.3.0esr-1~deb9u1fixed
stretch (security)60.4.0esr-1~deb9u1fixed
buster60.3.0esr-1fixed
sid60.4.0esr-1fixed
thunderbird (PTS)jessie1:52.8.0-1~deb8u1vulnerable
jessie (security)1:60.3.0-1~deb8u1fixed
stretch1:60.2.1-2~deb9u1fixed
stretch (security)1:60.3.0-1~deb9u1fixed
buster, sid1:60.3.1-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)62.0-1unimportant
firefox-esrsource(unstable)60.2.0esr-1unimportant
firefox-esrsourcestretch60.2.0esr-1~deb9u2medium
thunderbirdsource(unstable)1:60.2.1-1medium
thunderbirdsourcejessie1:60.3.0-1~deb8u1mediumDLA-1575-1
thunderbirdsourcestretch1:60.2.1-2~deb9u1mediumDSA-4327-1

Notes

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

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