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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200508-16] Tor: Information disclosure


Vulnerability Assessment Details

[GLSA-200508-16] Tor: Information disclosure

Vulnerability Assessment Summary
Tor: Information disclosure

Detailed Explanation for this Vulnerability Assessment
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.

References:
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2643
http://archives.seul.org/or/announce/Aug-2005/msg00002.html


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


Network Security Threat Level: Low


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2005 Michel Arboi

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