CVE-2020-12421

NameCVE-2020-12421
DescriptionWhen performing add-on updates, certificate chains terminating in non-built-in-roots were rejected (even if they were legitimately added by an administrator.) This could have caused add-ons to become out-of-date silently without notification to the user. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
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)
ReferencesDSA-4713-1, DSA-4718-1
NVD severitymedium

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)78.3.0esr-1~deb9u2fixed
buster68.12.0esr-1~deb10u1fixed
buster (security)78.3.0esr-1~deb10u1fixed
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)1:78.3.1-2~deb10u2fixed
bullseye1:68.12.0-1fixed
sid1:78.3.3-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)78.0-1
firefox-esrsourcestretch68.10.0esr-1~deb9u1DSA-4713-1
firefox-esrsourcebuster68.10.0esr-1~deb10u1DSA-4713-1
firefox-esrsource(unstable)68.10.0esr-1
thunderbirdsourcestretch1:68.10.0-1~deb9u1DSA-4718-1
thunderbirdsourcebuster1:68.10.0-1~deb10u1DSA-4718-1
thunderbirdsource(unstable)1:68.10.0-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2020-24/#CVE-2020-12421
https://www.mozilla.org/en-US/security/advisories/mfsa2020-25/#CVE-2020-12421
https://www.mozilla.org/en-US/security/advisories/mfsa2020-26/#CVE-2020-12421

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