CVE-2018-18500

NameCVE-2018-18500
DescriptionA use-after-free vulnerability can occur while parsing an HTML5 stream in concert with custom HTML elements. This results in the stream parser object being freed while still in use, leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65.
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-1648-1, DLA-1678-1, DSA-4376-1, DSA-4392-1
NVD severityhigh

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid82.0-1fixed
firefox-esr (PTS)stretch68.10.0esr-1~deb9u1fixed
stretch (security)78.4.0esr-1~deb9u1fixed
buster68.12.0esr-1~deb10u1fixed
buster (security)78.4.0esr-1~deb10u2fixed
bullseye78.3.0esr-2fixed
sid78.4.0esr-2fixed
thunderbird (PTS)stretch1:68.10.0-1~deb9u1fixed
stretch (security)1:78.3.1-2~deb9u1fixed
buster1:68.12.0-1~deb10u1fixed
buster (security)1:78.4.0-1~deb10u1fixed
bullseye1:68.12.0-1fixed
sid1:78.4.0-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)65.0-1
firefox-esrsourcejessie60.5.0esr-1~deb8u1DLA-1648-1
firefox-esrsourcestretch60.5.0esr-1~deb9u1DSA-4376-1
firefox-esrsource(unstable)60.5.0esr-1
thunderbirdsourcejessie1:60.5.1-1~deb8u1DLA-1678-1
thunderbirdsourcestretch1:60.5.1-1~deb9u1DSA-4392-1
thunderbirdsource(unstable)1:60.5.0-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2019-01/#CVE-2018-18500
https://www.mozilla.org/en-US/security/advisories/mfsa2019-02/#CVE-2018-18500
https://www.mozilla.org/en-US/security/advisories/mfsa2019-03/#CVE-2018-18500

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