Vulnerability in Tor Project
CVE-2017-8822
In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, relays (that have incompletely downloaded descriptors) can pick themselves in a circuit path, leading to a degradation of anonymity, aka TROVE-2017-012.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.009 (59.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Tor Project
- Debian Linux — versions 8.0, 9.0
- Tor Before 0.2.5.16, 0.2.6 Through 0.2.8 0.2.8.17, 0.2.9 0.2.9.14, 0.3.0 0.3.0.13, And 0.3.1 0.3.1.9 — versions Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9
Weakness classification (CWE)
References
- bugs.torproject.org/21534 (Issue Tracking, Vendor Advisory)
- blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-02914-028… (Vendor Advisory)
- bugs.torproject.org/24333 (Vendor Advisory)
- www.debian.org/security/2017/dsa-4054 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-8822?
- CVE-2017-8822 is a low-severity vulnerability in Tor Project, classified under CWE-417. CVSS score: 3.7/10. Published 2017-12-03.
- How severe is CVE-2017-8822?
- Low severity. CVSS v3 base score is 3.7 out of 10.