Use After Free in Tor_project Tor
CVE-2017-8823
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, there is a use-after-free in onion service v2 during intro-point expiration because the expiring list is m…
Vulnerability class: Use-After-Free
EPSS: 0.004 (60.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Tor_project Tor
- Debian Debian_linux — versions 8.0, 9.0
- N/a 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
- security@debian.org (x_refsource_CONFIRM, Issue Tracking, Vendor Advisory)
- security@debian.org (x_refsource_CONFIRM, Vendor Advisory)
- security@debian.org (x_refsource_CONFIRM, Vendor Advisory)
- security@debian.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
Frequently asked questions
- What is CVE-2017-8823?
- CVE-2017-8823 is a high-severity vulnerability in Tor_project Tor, classified under Use After Free. CVSS score: 8.1/10. Published 2017-12-03.
- How severe is CVE-2017-8823?
- High severity. CVSS v3 base score is 8.1 out of 10.