CVE-2021-38508

NameCVE-2021-38508
DescriptionBy displaying a form validity message in the correct location at the same time as a permission prompt (such as for geolocation), the validity message could have obscured the prompt, resulting in the user potentially being tricked into granting the permission. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2863-1, DLA-2874-1, DSA-5026-1, DSA-5034-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid131.0.2-2fixed
firefox-esr (PTS)bullseye115.14.0esr-1~deb11u1fixed
bullseye (security)128.3.1esr-1~deb11u1fixed
bookworm115.14.0esr-1~deb12u1fixed
bookworm (security)128.3.1esr-1~deb12u1fixed
trixie128.3.0esr-2fixed
sid128.3.1esr-2fixed
thunderbird (PTS)bullseye1:115.12.0-1~deb11u1fixed
bullseye (security)1:115.16.0esr-1~deb11u1fixed
bookworm1:115.12.0-1~deb12u1fixed
bookworm (security)1:115.16.0esr-1~deb12u1fixed
trixie1:128.2.0esr-1fixed
sid1:128.3.0esr-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)94.0-1
firefox-esrsourcestretch91.4.1esr-1~deb9u1DLA-2863-1
firefox-esrsourcebullseye91.4.1esr-1~deb11u1DSA-5026-1
firefox-esrsource(unstable)91.3.0esr-1
thunderbirdsourcestretch1:91.4.1-1~deb9u1DLA-2874-1
thunderbirdsourcebuster1:91.4.1-1~deb10u1DSA-5034-1
thunderbirdsourcebullseye1:91.4.1-1~deb11u1DSA-5034-1
thunderbirdsource(unstable)1:91.3.0-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2021-48/#CVE-2021-38508
https://www.mozilla.org/en-US/security/advisories/mfsa2021-49/#CVE-2021-38508
https://www.mozilla.org/en-US/security/advisories/mfsa2021-50/#CVE-2021-38508

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