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The final version of the CSI 6.0 has been released. 
Find out why this is not just another Patch Management solution: http://secunia.com/blog/325/

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TITLE:
Rack Multiple Denial of Service Vulnerabilities

SECUNIA ADVISORY ID:
SA51815

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/51815/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=51815

RELEASE DATE:
2013-01-16

DISCUSS ADVISORY:
http://secunia.com/advisories/51815/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/51815/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=51815

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Multiple vulnerabilities have been reported in Rack, which can be
exploited by malicious people to cause a DoS (Denial of Service).

1) The vulnerability is caused due to an error in regular expressions
engine used by Ruby while parsing content with a certain
content-disposition header and can be exploited to trigger an
infinite loop.

2) The vulnerability is caused due to an unspecified error in
Rack::Auth::AbstractRequest class and can be exploited to render the
application unusable.

3) The vulnerability is caused due to an unspecified error when
processing long strings and can be exploited to trigger an
out-of-memory condition.

The vulnerabilities are reported in versions prior to 1.1.5, 1.2.7,
1.3.9, and 1.4.4.

SOLUTION:
Update to version 1.1.5, 1.2.7, 1.3.9, or 1.4.4.

PROVIDED AND/OR DISCOVERED BY:
1) Paul Rogers
2, 3) Reported by the vendor

ORIGINAL ADVISORY:
Rack:
https://groups.google.com/forum/#!msg/rack-devel/1w4_fWEgTdI/XAkSNHjtdTsJ
https://groups.google.com/forum/#!topic/rack-devel/ImYOqcGiksw/discussion
https://groups.google.com/forum/#!topic/rack-devel/-MWPHDeGWtI/discussion

RedHat Bugzilla:
https://bugzilla.redhat.com/show_bug.cgi?id=895277
https://bugzilla.redhat.com/show_bug.cgi?id=895282
https://bugzilla.redhat.com/show_bug.cgi?id=895384

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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