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Tor: Information disclosure


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200506-18 / tor
Release Date June 21, 2005
Latest Revision May 22, 2006: 02
Impact low
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
net-misc/tor < >= All supported architectures

Related bugreports: #96320


A flaw in Tor may allow the disclosure of arbitrary memory portions.

2.  Impact Information


Tor is an implementation of second generation Onion Routing, a connection-oriented anonymizing communication service.


A bug in Tor allows attackers to view arbitrary memory contents from an exit server's process space.


A remote attacker could exploit the memory disclosure to gain sensitive information and possibly even private keys.

3.  Resolution Information


There is no known workaround at this time.


All Tor users should upgrade to the latest available version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/tor-"

4.  References


Page updated June 21, 2005

Summary: This is a Gentoo Linux Security Advisory

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