GLSA Advocate
Joined: 12 May 2004 Posts: 2663
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Posted: Tue Mar 06, 2012 5:26 am Post subject: [ GLSA 201203-05 ] Rack: Denial of Service |
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Gentoo Linux Security Advisory
Title: Rack: Denial of Service (GLSA 201203-05)
Severity: normal
Exploitable: remote
Date: March 06, 2012
Bug(s): #396455
ID: 201203-05
Synopsis
A hash collision vulnerability in Rack allows remote attackers to
cause a Denial of Service condition.
Background
Rack is a modular Ruby web server interface.
Affected Packages
Package: dev-ruby/rack
Vulnerable: < 1.1.3
Unaffected: >= 1.1.3
Architectures: All supported architectures
Description
Rack does not properly randomize hash functions to protect against hash
collision attacks.
Impact
A remote attacker could send a specially crafted form post, possibly
resulting in a Denial of Service condition.
Workaround
There is no known workaround at this time.
Resolution
All Rack users should upgrade to the latest version: Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=dev-ruby/rack-1.1.3"
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References
CVE-2011-5036 |
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