Information disclosure in Tor - CVE-2023-23589

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Main Vulnerability Database Vulnerabilities #VU71194

Information disclosure in Tor - CVE-2023-23589

Published: January 17, 2023


Vulnerability identifier: #VU71194
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-23589
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Tor
Software vendor:
tor.eff.org

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a logical error within the process_socks4_request() function in src/core/proto/proto_socks.c, which leaks DNS queries in case the "SafeSocks=1". A remote attacker can gain unauthorized access to sensitive information.


Remediation

Install updates from vendor's website.

External links