Description
Tor before 0.1.1.20 creates "internal circuits" primarily consisting of nodes with "useful exit nodes," which allows remote attackers to conduct unspecified statistical attacks.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | tor | 0.1.1.20-1 | — |
| Debian 13 | tor | 0.1.1.20-1 | — |
| Debian 12 | tor | 0.1.1.20-1 | — |
References
- 25882 vdb-entry
- 20277 third-party-advisory
- tor-circuits-information-disclosure(26798) vdb-entry
- 18323 vdb-entry
- 20514 third-party-advisory
- GLSA-200606-04 vendor-advisory
- http://tor.eff.org/cvs/tor/ChangeLog