| Name | CVE-2021-4076 |
| Description | A flaw exists in tang, a network-based cryptographic binding server, which could result in leak of private keys. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-5025-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| tang (PTS) | buster | 7-1+deb10u1 | fixed |
| buster (security) | 7-1+deb10u2 | fixed |
| bullseye | 8-3+deb11u2 | fixed |
| bullseye (security) | 8-3+deb11u1 | fixed |
| bookworm | 11-2+deb12u1 | fixed |
| sid, trixie | 14-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| tang | source | buster | (not affected) | | | |
| tang | source | bullseye | 8-3+deb11u1 | | DSA-5025-1 | |
| tang | source | (unstable) | 11-1 | | | |
Notes
[buster] - tang <not-affected> (Vulnerable code introduced later)
https://github.com/latchset/tang/pull/81
Introduced by: https://github.com/latchset/tang/commit/609050586e4863329d2db9b7cb73da5c09eeea2b (v8)
Fixed by: https://github.com/latchset/tang/commit/e82459fda10f0630c3414ed2afbc6320bb9ea7c9 (v11)