What’s Vulnerable › Vulnerabilities

CVE-2023-23589

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-01-14 · updated 2026-06-17
• Weakness: CWE-693

Description

The SafeSocks option in Tor before 0.4.7.13 has a logic error in which the unsafe SOCKS4 protocol can be used but not the safe SOCKS4a protocol, aka TROVE-2022-002.

Affected products

• Debian Linux: 10.0, 11.0
• Fedoraproject Fedora: 36, 37
• torproject Tor: before 0.4.7.13 — fixed in 0.4.7.13

How to fix

Upgrade to a fixed version: torproject Tor 0.4.7.13. Check the vendor advisory for mitigations.

References

• https://gitlab.torproject.org/tpo/core/tor/-/commit/a282145b3634547ab84ccd959d0537c021ff7ffc
• https://gitlab.torproject.org/tpo/core/tor/-/issues/40730
• https://gitlab.torproject.org/tpo/core/tor/-/raw/release-0.4.7/ReleaseNotes
• https://lists.debian.org/debian-lts-announce/2023/01/msg00026.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IYOLTP6HQO2HPXUYKOR7P5YYYN7CINQQ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZMY4FWXYKP3MDXTZ3EJ7XJVGBCKBK2XL/
• https://security.gentoo.org/glsa/202305-11
• https://www.debian.org/security/2023/dsa-5320
• https://gitlab.torproject.org/tpo/core/tor/-/commit/a282145b3634547ab84ccd959d0537c021ff7ffc
• https://gitlab.torproject.org/tpo/core/tor/-/issues/40730
• https://gitlab.torproject.org/tpo/core/tor/-/raw/release-0.4.7/ReleaseNotes
• https://lists.debian.org/debian-lts-announce/2023/01/msg00026.html

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