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GLSA
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Joined: 12 May 2004
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PostPosted: Mon Jul 06, 2015 7:26 pm    Post subject: [ GLSA 201507-02 ] Tor Reply with quote

Gentoo Linux Security Advisory

Title: Tor: Denial of Service (GLSA 201507-02)
Severity: normal
Exploitable: remote
Date: July 06, 2015
Bug(s): #545940
ID: 201507-02

Synopsis

Two vulnerabilities have been found in Tor, the worst of which can
allow remote attackers to cause a Denial of Service condition.


Background

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


Affected Packages

Package: net-misc/tor
Vulnerable: < 0.2.6.7
Unaffected: >= 0.2.6.7
Architectures: All supported architectures


Description

Tor does not handle data correctly when specifically crafted data is
sent, and also fails to properly verify a descriptor provided by a hidden
service directory.


Impact

A remote attacker could cause a Denial of Service condition in both a
Tor client or a Tor server.


Workaround

There is no known workaround at this time.

Resolution

All Tor users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=net-misc/tor-0.2.6.7"
   


References

CVE-2015-2928
CVE-2015-2929

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