CVE-2019-9791

NameCVE-2019-9791
DescriptionThe type inference system allows the compilation of functions that can cause type confusions between arbitrary objects when compiled through the IonMonkey just-in-time (JIT) compiler and when the constructor function is entered through on-stack replacement (OSR). This allows for possible arbitrary reading and writing of objects during an exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.
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-1722-1, DLA-1743-1, DSA-4411-1, DSA-4420-1
NVD severityhigh

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid81.0-2fixed
firefox-esr (PTS)stretch68.10.0esr-1~deb9u1fixed
stretch (security)78.3.0esr-1~deb9u2fixed
buster68.12.0esr-1~deb10u1fixed
buster (security)78.3.0esr-1~deb10u1fixed
bullseye, sid78.3.0esr-2fixed
thunderbird (PTS)stretch1:68.10.0-1~deb9u1fixed
stretch (security)1:68.12.0-1~deb9u2fixed
buster, buster (security)1:68.12.0-1~deb10u1fixed
bullseye1:68.12.0-1fixed
sid1:78.3.1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)66.0-1
firefox-esrsourcejessie60.6.0esr-1~deb8u1DLA-1722-1
firefox-esrsourcestretch60.6.0esr-1~deb9u1DSA-4411-1
firefox-esrsource(unstable)60.6.0esr-1
thunderbirdsourcejessie1:60.6.1-1~deb8u1DLA-1743-1
thunderbirdsourcestretch1:60.6.1-1~deb9u1DSA-4420-1
thunderbirdsource(unstable)1:60.6.1-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2019-08/#CVE-2019-9791
https://www.mozilla.org/en-US/security/advisories/mfsa2019-07/#CVE-2019-9791
https://www.mozilla.org/en-US/security/advisories/mfsa2019-11/#CVE-2019-9791

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