CVE-2018-12393

NameCVE-2018-12393
DescriptionA potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 representation could result in allocating a buffer too small for the conversion. This leads to a possible out-of-bounds write. *Note: 64-bit builds are not vulnerable to this issue.*. This vulnerability affects Firefox < 63, Firefox ESR < 60.3, and Thunderbird < 60.3.
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-1571-1, DLA-1575-1, DSA-4324-1, DSA-4337-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid70.0.1-1fixed
firefox-esr (PTS)jessie52.8.1esr-1~deb8u1vulnerable
jessie (security)68.2.0esr-1~deb8u1fixed
stretch60.7.1esr-1~deb9u1fixed
stretch (security)68.2.0esr-1~deb9u2fixed
buster, buster (security)68.2.0esr-1~deb10u1fixed
bullseye, sid68.2.0esr-1fixed
thunderbird (PTS)jessie1:52.8.0-1~deb8u1vulnerable
jessie (security)1:68.2.2-1~deb8u1fixed
stretch1:60.8.0-1~deb9u1fixed
stretch (security)1:68.2.2-1~deb9u1fixed
buster1:60.9.0-1~deb10u1fixed
buster (security)1:68.2.2-1~deb10u1fixed
bullseye1:60.9.0-1fixed
sid1:68.2.2-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)63.0-1
firefox-esrsource(unstable)60.3.0esr-1
firefox-esrsourcejessie60.3.0esr-1~deb8u1DLA-1571-1
firefox-esrsourcestretch60.3.0esr-1~deb9u1DSA-4324-1
thunderbirdsource(unstable)1:60.3.0-1
thunderbirdsourcejessie1:60.3.0-1~deb8u1DLA-1575-1
thunderbirdsourcestretch1:60.3.0-1~deb9u1DSA-4337-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2018-27/#CVE-2018-12393
https://www.mozilla.org/en-US/security/advisories/mfsa2018-26/#CVE-2018-12393
https://www.mozilla.org/en-US/security/advisories/mfsa2018-28/#CVE-2018-12393

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