CVE-2019-17026

NameCVE-2019-17026
DescriptionIncorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 68.4.1, Thunderbird < 68.4.1, and Firefox < 72.0.1.
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-2071-1, DLA-2093-1, DSA-4600-1, DSA-4603-1
NVD severitymedium
Debian Bugs948452

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid83.0-1fixed
firefox-esr (PTS)stretch68.10.0esr-1~deb9u1fixed
stretch (security)78.5.0esr-1~deb9u1fixed
buster68.12.0esr-1~deb10u1fixed
buster (security)78.5.0esr-1~deb10u1fixed
bullseye, sid78.5.0esr-1fixed
thunderbird (PTS)stretch1:68.10.0-1~deb9u1fixed
stretch (security)1:78.5.0-1~deb9u1fixed
buster1:68.12.0-1~deb10u1fixed
buster (security)1:78.5.0-1~deb10u1fixed
bullseye, sid1:78.5.0-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)72.0.1-1948452
firefox-esrsourcejessie68.4.1esr-1~deb8u1DLA-2093-1
firefox-esrsourcestretch68.4.1esr-1~deb9u1DSA-4600-1
firefox-esrsourcebuster68.4.1esr-1~deb10u1DSA-4600-1
firefox-esrsource(unstable)68.4.1esr-1
thunderbirdsourcejessie1:68.4.1-1~deb8u1DLA-2071-1
thunderbirdsourcestretch1:68.4.1-1~deb9u1DSA-4603-1
thunderbirdsourcebuster1:68.4.1-1~deb10u1DSA-4603-1
thunderbirdsource(unstable)1:68.4.1-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2020-03/#CVE-2019-17026
https://www.mozilla.org/en-US/security/advisories/mfsa2020-04/#CVE-2019-17026

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