Description
The rend_service_intro_established function in or/rendservice.c in Tor before 0.2.8.15, 0.2.9.x before 0.2.9.12, 0.3.0.x before 0.3.0.11, 0.3.1.x before 0.3.1.7, and 0.3.2.x before 0.3.2.1-alpha, when SafeLogging is disabled, allows attackers to obtain sensitive information by leveraging access to the log files of a hidden service, because uninitialized stack data is included in an error message about construction of an introduction point circuit.
Metrics
CVSS 3.0 5.9/10
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | Tor before 0.3.1.7 | Tor before 0.3.1.7 |
References
- http://www.debian.org/security/2017/dsa-3993
- http://www.securitytracker.com/id/1039519
- https://github.com/torproject/tor/commit/09ea89764a4d3a907808ed7d4fe42abfe64bd486Patch, Third Party Advisory
- https://trac.torproject.org/projects/tor/ticket/23490Mitigation, Patch, Vendor Advisory
- http://www.debian.org/security/2017/dsa-3993
- http://www.securitytracker.com/id/1039519
- https://github.com/torproject/tor/commit/09ea89764a4d3a907808ed7d4fe42abfe64bd486Patch, Third Party Advisory
- https://trac.torproject.org/projects/tor/ticket/23490Mitigation, Patch, Vendor Advisory
Timeline
- Published
- Sep 18, 2017
- Last modified
- Jun 17, 2026
- NVD status
- Modified