| Name | CVE-2021-43529 |
| Description | Thunderbird versions prior to 91.3.0 are vulnerable to the heap overflow described in CVE-2021-43527 when processing S/MIME messages. Thunderbird versions 91.3.0 and later will not call the vulnerable code when processing S/MIME messages that contain certificates with DER-encoded DSA or RSA-PSS signatures. |
| 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-2874-1, DSA-5034-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| 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) | 1:128.4.3esr-1~deb11u1 | fixed |
| bookworm | 1:115.16.0esr-1~deb12u1 | fixed |
| bookworm (security) | 1:128.4.3esr-1~deb12u1 | fixed |
| sid, trixie | 1:128.4.3esr-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://www.openwall.com/lists/oss-security/2021/12/01/6
https://bugzilla.mozilla.org/show_bug.cgi?id=1738501