PT-2005-3533 · Tor · Tor

Roger Dingledine · Published 2005-08-21 · Updated 2016-10-18 · CVE-2005-2643

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions Tor versions 0.1.0.13 and earlier Tor experimental versions 0.1.1.4-alpha and earlier

Description The issue allows malicious Tor servers to obtain the keys that a client uses for other systems in the circuit when using ephemeral Diffie-Hellman (DH) handshakes, due to the failure to reject certain weak keys.

Recommendations For Tor versions 0.1.0.13 and earlier, update to a version that rejects weak keys in ephemeral Diffie-Hellman handshakes. For Tor experimental versions 0.1.1.4-alpha and earlier, update to a version that rejects weak keys in ephemeral Diffie-Hellman handshakes.

Fix

Related Identifiers

CVE-2005-2643

Affected Products

Tor

References · 8

• https://osv.dev/vulnerability/DEBIAN-CVE-2005-2643 · Vendor Advisory
• http://secunia.com/advisories/16424 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2005-2643 · Security Note
• https://osv.dev/vulnerability/CVE-2005-2643 · Vendor Advisory
• http://archives.seul.org/or/announce/Aug-2005/msg00002.html · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2005-2643 · Vendor Advisory
• http://marc.info/?l=bugtraq&m=112448002732443&w=2 · Note
• http://securitytracker.com/id?1014739 · Note