CVE catalog
CVE-2021-4076
tang: CVE-2021-4076
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.56% · Oct 27, 2026
A flaw exists in tang, a network-based cryptographic binding server, which could result in leak of private keys.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | tang | sid | 15-3 | fixed |
| Debian | tang | forky | 15-3 | fixed |
| Debian | tang | trixie | 15-2 | fixed |
| Debian | tang | bookworm | 11-2+deb12u1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | tang | source | sid | 11-1 | not yet assigned | Not reported | Not reported |
| Debian | tang | source | forky | 11-1 | not yet assigned | Not reported | Not reported |
| Debian | tang | source | trixie | 11-1 | not yet assigned | Not reported | Not reported |
| Debian | tang | source | bookworm | 11-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [tang]Fixed
Details (2)
11-2+deb12u1· all · bookwormFixed · Fixed:
11-1dsa · tang · debian · bookworm; dsa · tang · debian · 12
11-2+deb12u1· all · bookwormFixed · Fixed:
11-1dsa · tang · debian · bookworm; dsa · tang · debian · 12
- [tang-common]Fixed
Source package: [tang]
Details (2)
11-2+deb12u1· amd64 · bookwormFixed · Fixed:
11-1dsa · tang · debian · bookworm; dsa · tang · debian · 12
11-2+deb12u1· arm64 · bookwormFixed · Fixed:
11-1dsa · tang · debian · bookworm; dsa · tang · debian · 12
- [tang-xinetd]Fixed
Source package: [tang]
Details (2)
11-2+deb12u1· all · bookwormFixed · Fixed:
11-1dsa · tang · debian · bookworm; dsa · tang · debian · 12
11-2+deb12u1· all · bookwormFixed · Fixed:
11-1dsa · tang · debian · bookworm; dsa · tang · debian · 12
[Debian 13 (Trixie)]
- [tang]Fixed
Details (2)
15-2· all · trixieFixed · Fixed:
11-1dsa · tang · debian · 13
15-2· all · trixieFixed · Fixed:
11-1dsa · tang · debian · 13
- [tang-common]Fixed
Source package: [tang]
Details (2)
15-2· amd64 · trixieFixed · Fixed:
11-1dsa · tang · debian · 13
15-2+b2· arm64 · trixieFixed · Fixed:
11-1dsa · tang · debian · 13
- [tang-xinetd]Fixed
Source package: [tang]
Details (2)
15-2· all · trixieFixed · Fixed:
11-1dsa · tang · debian · 13
15-2· all · trixieFixed · Fixed:
11-1dsa · tang · debian · 13
Observed:
References
- [https://osv.dev/vulnerability/DEBIAN-CVE-2021-4076]
- [https://osv.dev/vulnerability/DSA-5025-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2021-4076]
- [https://security-tracker.debian.org/tracker/CVE-2021-4076]
- [https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-4076.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]