| 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 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| thunderbird (PTS) | 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.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| thunderbird | source | stretch | 1:91.4.1-1~deb9u1 | DLA-2874-1 | ||
| thunderbird | source | buster | 1:91.4.1-1~deb10u1 | DSA-5034-1 | ||
| thunderbird | source | bullseye | 1:91.4.1-1~deb11u1 | DSA-5034-1 | ||
| thunderbird | source | (unstable) | 1:91.3.0-1 |
https://www.openwall.com/lists/oss-security/2021/12/01/6
https://bugzilla.mozilla.org/show_bug.cgi?id=1738501