| Name | CVE-2021-23982 |
| Description | Using 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2607-1, DLA-2609-1, DSA-4874-1, DSA-4876-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| firefox (PTS) | sid | 135.0-1 | fixed |
| firefox-esr (PTS) | bullseye | 115.14.0esr-1~deb11u1 | fixed |
| bullseye (security) | 128.7.0esr-1~deb11u1 | fixed | |
| bookworm | 128.5.0esr-1~deb12u1 | fixed | |
| bookworm (security) | 128.7.0esr-1~deb12u1 | fixed | |
| trixie | 128.6.0esr-4 | fixed | |
| sid | 128.7.0esr-1 | fixed | |
| thunderbird (PTS) | bullseye | 1:115.12.0-1~deb11u1 | fixed |
| bullseye (security) | 1:128.7.0esr-1~deb11u1 | fixed | |
| bookworm | 1:128.5.0esr-1~deb12u1 | fixed | |
| bookworm (security) | 1:128.7.0esr-1~deb12u1 | fixed | |
| sid, trixie | 1:128.6.0esr-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| firefox | source | (unstable) | 87.0-1 | |||
| firefox-esr | source | stretch | 78.9.0esr-1~deb9u1 | DLA-2607-1 | ||
| firefox-esr | source | buster | 78.9.0esr-1~deb10u1 | DSA-4874-1 | ||
| firefox-esr | source | (unstable) | 78.9.0esr-1 | |||
| thunderbird | source | stretch | 1:78.9.0-1~deb9u1 | DLA-2609-1 | ||
| thunderbird | source | buster | 1:78.9.0-1~deb10u1 | DSA-4876-1 | ||
| thunderbird | source | (unstable) | 1:78.9.0-1 |
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