| Name | CVE-2020-15676 |
| Description | Firefox sometimes ran the onload handler for SVG elements that the DOM sanitizer decided to remove, resulting in JavaScript being executed after pasting attacker-controlled data into a contenteditable element. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3. |
| 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-2387-1, DLA-2408-1, DSA-4768-1, DSA-4770-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| firefox (PTS) | sid | 133.0.3-1 | fixed |
| firefox-esr (PTS) | jessie, jessie (lts) | 68.9.0esr-1~deb8u2 | vulnerable |
| stretch (security), stretch (lts), stretch | 91.11.0esr-1~deb9u1 | fixed | |
| buster (security), buster, buster (lts) | 115.12.0esr-1~deb10u1 | fixed | |
| bullseye | 115.14.0esr-1~deb11u1 | fixed | |
| bullseye (security) | 128.5.0esr-1~deb11u1 | fixed | |
| bookworm | 128.3.1esr-1~deb12u1 | fixed | |
| bookworm (security) | 128.5.0esr-1~deb12u1 | fixed | |
| trixie | 128.5.0esr-1 | fixed | |
| sid | 128.5.1esr-1 | fixed | |
| thunderbird (PTS) | jessie, jessie (lts) | 1:68.9.0-1~deb8u2 | vulnerable |
| stretch (security), stretch (lts), stretch | 1:91.10.0-1~deb9u1 | fixed | |
| buster (security), buster, buster (lts) | 1:115.12.0-1~deb10u1 | fixed | |
| bullseye | 1:115.12.0-1~deb11u1 | fixed | |
| bullseye (security) | 1:128.5.0esr-1~deb11u1 | fixed | |
| bookworm | 1:115.16.0esr-1~deb12u1 | fixed | |
| bookworm (security) | 1:128.5.0esr-1~deb12u1 | fixed | |
| sid, trixie | 1:128.5.2esr-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) | 81.0-1 | |||
| firefox-esr | source | jessie | (unfixed) | end-of-life | ||
| firefox-esr | source | stretch | 78.3.0esr-1~deb9u1 | DLA-2387-1 | ||
| firefox-esr | source | buster | 78.3.0esr-1~deb10u1 | DSA-4768-1 | ||
| firefox-esr | source | (unstable) | 78.3.0esr-1 | |||
| thunderbird | source | jessie | (unfixed) | end-of-life | ||
| thunderbird | source | stretch | 1:78.3.1-2~deb9u1 | DLA-2408-1 | ||
| thunderbird | source | buster | 1:78.3.1-2~deb10u2 | DSA-4770-1 | ||
| thunderbird | source | (unstable) | 1:78.3.1-1 |
https://www.mozilla.org/en-US/security/advisories/mfsa2020-42/#CVE-2020-15676
https://www.mozilla.org/en-US/security/advisories/mfsa2020-43/#CVE-2020-15676
https://www.mozilla.org/en-US/security/advisories/mfsa2020-44/#CVE-2020-15676