| Name | CVE-2023-4052 |
| Description | The Firefox updater created a directory writable by non-privileged users. When uninstalling Firefox, any files in that directory would be recursively deleted with the permissions of the uninstalling user account. This could be combined with creation of a junction (a form of symbolic link) to allow arbitrary file deletion controlled by the non-privileged user.
*This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 116, Firefox ESR < 115.1, and Thunderbird < 115.1. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
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 | fixed |
| 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 | fixed |
| 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) | (not affected) | | | |
| firefox-esr | source | (unstable) | (not affected) | | | |
| thunderbird | source | (unstable) | (not affected) | | | |
Notes
- firefox <not-affected> (Affects only Firefox on Windows)
- firefox-esr <not-affected> (Affects only Firefox ESR 115.0.1 on Windows)
- thunderbird <not-affected> (Affects only Thunderbird on Windows)
https://www.mozilla.org/en-US/security/advisories/mfsa2023-29/#CVE-2023-4052
https://www.mozilla.org/en-US/security/advisories/mfsa2023-31/#CVE-2023-4052
https://www.mozilla.org/en-US/security/advisories/mfsa2023-33/#CVE-2023-4052