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, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-1648-1, DLA-1678-1, DSA-4376-1, DSA-4392-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid124.0.1-1fixed
firefox-esr (PTS)buster91.12.0esr-1~deb10u1fixed
buster (security)115.9.1esr-1~deb10u1fixed
bullseye115.7.0esr-1~deb11u1fixed
bullseye (security)115.9.1esr-1~deb11u1fixed
bookworm115.7.0esr-1~deb12u1fixed
bookworm (security)115.9.1esr-1~deb12u1fixed
trixie115.8.0esr-1fixed
sid115.9.1esr-1fixed
thunderbird (PTS)buster1:91.12.0-1~deb10u1fixed
buster (security)1:115.9.0-1~deb10u1fixed
bullseye1:115.7.0-1~deb11u1fixed
bullseye (security)1:115.9.0-1~deb11u1fixed
bookworm1:115.7.0-1~deb12u1fixed
bookworm (security)1:115.9.0-1~deb12u1fixed
trixie1:115.7.0-1fixed
sid1:115.9.0-1fixed

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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