Information disclosure in Torproject Tor
CVE-2017-0380
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.015 (73.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Torproject Tor — versions 0.2.9.0, 0.2.9.1, 0.2.9.2
- Tor Before 0.3.1.7 — versions Tor before 0.3.1.7
Weakness classification (CWE)
References
- trac.torproject.org/projects/tor/ticket/23490 (Patch, Mitigation, Vendor Advisory)
- github.com/torproject/tor/commit/09ea89764a4d3a907808ed7d4fe42abfe64bd486 (Patch, Third Party Advisory)
- www.securitytracker.com/id/1039519 (vdb-entry)
- www.debian.org/security/2017/dsa-3993 (vendor-advisory)
Frequently asked questions
- What is CVE-2017-0380?
- CVE-2017-0380 is a medium-severity vulnerability in Torproject Tor, classified under Insertion of Sensitive Information into Log File. CVSS score: 5.9/10. Published 2017-09-18.
- How severe is CVE-2017-0380?
- Medium severity. CVSS v3 base score is 5.9 out of 10.