CVE-2019-9820

NameCVE-2019-9820
DescriptionA use-after-free vulnerability can occur in the chrome event handler when it is freed while still in use. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-1800-1, DLA-1806-1, DSA-4448-1, DSA-4451-1

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
firefoxsourceexperimental67.0-1
firefoxsource(unstable)67.0-2
firefox-esrsourcejessie60.7.0esr-1~deb8u1DLA-1800-1
firefox-esrsourcestretch60.7.0esr-1~deb9u1DSA-4448-1
firefox-esrsource(unstable)60.7.0esr-1
thunderbirdsourcejessie1:60.7.0-1~deb8u1DLA-1806-1
thunderbirdsourcestretch1:60.7.0-1~deb9u1DSA-4451-1
thunderbirdsource(unstable)1:60.7.0-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2019-13/#CVE-2019-9820
https://www.mozilla.org/en-US/security/advisories/mfsa2019-14/#CVE-2019-9820
https://www.mozilla.org/en-US/security/advisories/mfsa2019-15/#CVE-2019-9820

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