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Vulnerability · Published Feb 2, 2020 · Assigned by mitre

CVE-2020-8516

Medium 5.3

In plain English

A medium-severity security flaw in the tor package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.5% (higher than 85% of all known vulnerabilities).

Severity (CVSS NVD)5.3Medium
Exploit odds (30 days)2.5%top 15.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

The daemon in Tor through 0.4.1.8 and 0.4.2.x through 0.4.2.6 does not verify that a rendezvous node is known before attempting to connect to it, which might make it easier for remote attackers to discover circuit information. NOTE: The network team of Tor claims this is an intended behavior and not a vulnerability

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12torno fix listedDEBIAN-CVE-2020-8516
Debian:13torno fix listedDEBIAN-CVE-2020-8516
Debian:14torno fix listedDEBIAN-CVE-2020-8516

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References