Use After Free in Torproject Tor
CVE-2018-0491
A use-after-free issue was discovered in Tor 0.3.2.x before 0.3.2.10. It allows remote attackers to cause a denial of service (relay crash) because the KIST implementation allows a channel to be added more than once in the pending list.
Vulnerability class: Use-After-Free
EPSS: 0.151 (96.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Torproject Tor
- N/a Tor — versions Tor
Weakness classification (CWE)
References
- security@debian.org (x_refsource_CONFIRM, Mitigation, Issue Tracking, Vendor Advisory)
- security@debian.org (x_refsource_CONFIRM, Patch, Issue Tracking, Vendor Advisory)
- security@debian.org (x_refsource_CONFIRM, Vendor Advisory)
- security@debian.org (Exploit, VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)
Frequently asked questions
- What is CVE-2018-0491?
- CVE-2018-0491 is a high-severity vulnerability in Torproject Tor, classified under Use After Free. CVSS score: 7.5/10. Published 2018-03-05.
- How severe is CVE-2018-0491?
- High severity. CVSS v3 base score is 7.5 out of 10.