GLSA-200508-16 : Tor: Information disclosure

This script is Copyright (C) 2005-2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-200508-16
(Tor: Information disclosure)

The Diffie-Hellman implementation of Tor fails to verify the
cryptographic strength of keys which are used during handshakes.

Impact :

By setting up a malicious Tor server and enticing users to use
this server as first hop, a remote attacker could read and modify all
traffic of the user.

Workaround :

There is no known workaround at this time.

See also :

http://archives.seul.org/or/announce/Aug-2005/msg00002.html
http://www.gentoo.org/security/en/glsa/glsa-200508-16.xml

Solution :

All Tor users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-misc/tor-0.1.0.14'

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 19536 (gentoo_GLSA-200508-16.nasl)

Bugtraq ID:

CVE ID: CVE-2005-2643