| Name | CVE-2022-40956 |
| Description | When injecting an HTML base element, some requests would ignore the CSP's base-uri settings and accept the injected element's base instead. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105. |
| 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-3121-1, DLA-3123-1, DSA-5237-1, DSA-5238-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| firefox (PTS) | sid | 132.0-1 | fixed |
| firefox-esr (PTS) | bullseye | 115.14.0esr-1~deb11u1 | fixed |
| bullseye (security) | 128.4.0esr-1~deb11u1 | fixed | |
| bookworm | 115.14.0esr-1~deb12u1 | fixed | |
| bookworm (security) | 128.4.0esr-1~deb12u1 | fixed | |
| trixie | 128.3.1esr-2 | fixed | |
| sid | 128.4.0esr-1 | fixed | |
| thunderbird (PTS) | bullseye | 1:115.12.0-1~deb11u1 | fixed |
| bullseye (security) | 1:128.4.0esr-1~deb11u1 | fixed | |
| bookworm | 1:115.12.0-1~deb12u1 | fixed | |
| bookworm (security) | 1:115.16.0esr-1~deb12u1 | fixed | |
| sid, trixie | 1:128.4.0esr-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) | 105.0-1 | |||
| firefox-esr | source | buster | 102.3.0esr-1~deb10u2 | DLA-3121-1 | ||
| firefox-esr | source | bullseye | 102.3.0esr-1~deb11u1 | DSA-5237-1 | ||
| firefox-esr | source | (unstable) | 102.3.0esr-1 | |||
| thunderbird | source | buster | 1:102.3.0-1~deb10u1 | DLA-3123-1 | ||
| thunderbird | source | bullseye | 1:102.3.0-1~deb11u1 | DSA-5238-1 | ||
| thunderbird | source | (unstable) | 1:102.3.0-1 |
https://www.mozilla.org/en-US/security/advisories/mfsa2022-40/#CVE-2022-40956
https://www.mozilla.org/en-US/security/advisories/mfsa2022-41/#CVE-2022-40956
https://www.mozilla.org/en-US/security/advisories/mfsa2022-42/#CVE-2022-40956