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Family: Red Hat Local Security Checks --> Category: infos

RHSA-2004-635: irb Vulnerability Scan

Vulnerability Scan Summary
Check for the version of the irb packages

Detailed Explanation for this Vulnerability Test

An updated ruby package that fixes a denial of service issue for the CGI
instance is now available.

Ruby is an interpreted scripting language for object-oriented programming.

A flaw was dicovered in the CGI module of Ruby. If empty data is sent by
the POST method to the CGI script which requires MIME type
multipart/form-data, it can get stuck in a loop. A remote attacker could
trigger this flaw and cause a denial of service. The Common
Vulnerabilities and Exposures project ( has assigned the name
CVE-2004-0983 to this issue.

Users are advised to upgrade to this erratum package, which contains a
backported patch to cgi.rb.

Solution :
Threat Level: High

Click HERE for more information and discussions on this network vulnerability scan.


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