Rack Regular Expressions Engine Content-Disposition Header Parsing Infinite Loop Remote DoS

Metadata

medium
4.3
rack
CVE-2012-6109
osvdb.org
2012-05-04
2017-06-16 19:01
CVE-2012-6109 ruby-rack
CVE-2012-6109
2017-04-01 19:11
2017-01-05 20:15

Description

Rack contains a flaw in the Regular Expressions Engine that may allow a remote
denial of service. The issue is triggered when parsing context-disposition
headers. With a specially crafted header, a remote attacker can cause an
infinite loop, which will result in a loss of availability for the webserver.

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Affected package information

Package Patched in Unaffected in
rack ~> 1.1.4,~> 1.2.6,~> 1.3.7,>= 1.4.2 None