CVE catalog
CVE-2011-2768
tor: CVE-2011-2768
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.72% · Oct 25, 2026
Tor before 0.2.2.34, when configured as a client or bridge, sends a TLS certificate chain as part of an outgoing OR connection, which allows remote relays to bypass intended anonymity properties by reading this chain and then determining the set of entry guards that the client or bridge had selected.
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 | tor | sid | 0.4.9.14-1 | fixed |
| Debian | tor | forky | 0.4.9.14-1 | fixed |
| Debian | tor | trixie | 0.4.9.11-0+deb13u1 | fixed |
| Debian | tor | trixie-security | 0.4.9.14-0+deb13u1 | fixed |
| Debian | tor | bookworm | 0.4.9.11-0+deb12u1 | fixed |
| Debian | tor | bookworm-security | 0.4.9.11-0+deb12u1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | tor | source | sid | 0.2.2.34-1 | not yet assigned | Not reported | Not reported |
| Debian | tor | source | forky | 0.2.2.34-1 | not yet assigned | Not reported | Not reported |
| Debian | tor | source | trixie | 0.2.2.34-1 | not yet assigned | Not reported | Not reported |
| Debian | tor | source | bookworm | 0.2.2.34-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [tor]Unknown
Details (6)
0.4.9.11-0+deb12u1· amd64 · bookwormFixed · Fixed:
0.2.2.34-1dsa · tor · debian · bookworm; dsa · tor · debian · 12
0.4.9.11-0+deb12u1· arm64 · bookwormFixed · Fixed:
0.2.2.34-1dsa · tor · debian · bookworm; dsa · tor · debian · 12
0.4.8.14-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
0.2.2.34-1dsa · tor · debian · bookworm; dsa · tor · debian · 12
0.4.8.14-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
0.2.2.34-1dsa · tor · debian · bookworm; dsa · tor · debian · 12
0.4.9.11-0+deb12u1· amd64 · bookworm-securityFixed · Fixed:
0.2.2.34-1dsa · tor · debian · bookworm; dsa · tor · debian · 12
0.4.9.11-0+deb12u1· arm64 · bookworm-securityFixed · Fixed:
0.2.2.34-1dsa · tor · debian · bookworm; dsa · tor · debian · 12
- [tor-geoipdb]Unknown
Source package: [tor]
Details (6)
0.4.9.11-0+deb12u1· all · bookwormFixed · Fixed:
0.2.2.34-1dsa · tor · debian · bookworm; dsa · tor · debian · 12
0.4.9.11-0+deb12u1· all · bookwormFixed · Fixed:
0.2.2.34-1dsa · tor · debian · bookworm; dsa · tor · debian · 12
0.4.8.14-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
0.2.2.34-1dsa · tor · debian · bookworm; dsa · tor · debian · 12
0.4.8.14-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
0.2.2.34-1dsa · tor · debian · bookworm; dsa · tor · debian · 12
0.4.9.11-0+deb12u1· all · bookworm-securityFixed · Fixed:
0.2.2.34-1dsa · tor · debian · bookworm; dsa · tor · debian · 12
0.4.9.11-0+deb12u1· all · bookworm-securityFixed · Fixed:
0.2.2.34-1dsa · tor · debian · bookworm; dsa · tor · debian · 12
[Debian 13 (Trixie)]
- [tor]Unknown
Details (10)
0.4.9.11-0+deb13u1· amd64 · trixieFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.11-0+deb13u1· arm64 · trixieFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.11-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.11-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.11-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.11-0+deb13u1· arm64 · trixie-securityFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.12-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.12-0+deb13u2· amd64 · trixie-security · Historical versionFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.13-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.14-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
- [tor-geoipdb]Unknown
Source package: [tor]
Details (10)
0.4.9.11-0+deb13u1· all · trixieFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.11-0+deb13u1· all · trixieFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.11-1~bpo13+1· all · trixie-backportsFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.11-1~bpo13+1· all · trixie-backportsFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.11-0+deb13u1· all · trixie-securityFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.11-0+deb13u1· all · trixie-security · Historical versionFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.12-0+deb13u1· all · trixie-security · Historical versionFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.12-0+deb13u2· all · trixie-security · Historical versionFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.13-0+deb13u1· all · trixie-security · Historical versionFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
0.4.9.14-0+deb13u1· all · trixie-securityFixed · Fixed:
0.2.2.34-1dsa · tor · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2024_10423-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2011-2768]
- [https://osv.dev/vulnerability/DSA-2331-1]
- [https://security-tracker.debian.org/tracker/CVE-2011-2768]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]