CVE-2021-23982

NameCVE-2021-23982
DescriptionUsing techniques that built on the slipstream research, a malicious webpage could have scanned both an internal network's hosts as well as services running on the user's local machine utilizing WebRTC connections. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2607-1, DLA-2609-1, DSA-4874-1, DSA-4876-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid131.0-1fixed
firefox-esr (PTS)bullseye115.14.0esr-1~deb11u1fixed
bullseye (security)115.15.0esr-1~deb11u1fixed
bookworm115.14.0esr-1~deb12u1fixed
bookworm (security)128.3.0esr-1~deb12u1fixed
trixie115.15.0esr-1fixed
sid128.3.0esr-2fixed
thunderbird (PTS)bullseye1:115.12.0-1~deb11u1fixed
bullseye (security)1:115.15.0-1~deb11u1fixed
bookworm1:115.12.0-1~deb12u1fixed
bookworm (security)1:115.15.0-1~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)87.0-1
firefox-esrsourcestretch78.9.0esr-1~deb9u1DLA-2607-1
firefox-esrsourcebuster78.9.0esr-1~deb10u1DSA-4874-1
firefox-esrsource(unstable)78.9.0esr-1
thunderbirdsourcestretch1:78.9.0-1~deb9u1DLA-2609-1
thunderbirdsourcebuster1:78.9.0-1~deb10u1DSA-4876-1
thunderbirdsource(unstable)1:78.9.0-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2021-10/#CVE-2021-23982
https://www.mozilla.org/en-US/security/advisories/mfsa2021-11/#CVE-2021-23982
https://www.mozilla.org/en-US/security/advisories/mfsa2021-12/#CVE-2021-23982

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