National Cyber Awareness System

Vulnerability Summary for CVE-2011-4461

Overview

Jetty 8.1.0.RC2 and earlier computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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US-CERT Vulnerability Note: VU#903934

Name: VU#903934

Hyperlink:http://www.kb.cert.org/vuls/id/903934

External Source: XF

Name: jetty-hash-dos(72017)

Hyperlink:http://xforce.iss.net/xforce/xfdb/72017

External Source: UBUNTU

Name: USN-1429-1

Hyperlink:http://www.ubuntu.com/usn/USN-1429-1

External Source: SECTRACK

Name: 1026475

Hyperlink:http://www.securitytracker.com/id?1026475

External Source: MISC

Name: http://www.ocert.org/advisories/ocert-2011-003.html

Hyperlink:http://www.ocert.org/advisories/ocert-2011-003.html

External Source: MISC

Name: http://www.nruns.com/_downloads/advisory28122011.pdf

Hyperlink:http://www.nruns.com/_downloads/advisory28122011.pdf

External Source: SECUNIA

Name: 48981

Hyperlink:http://secunia.com/advisories/48981

External Source: SECUNIA

Name: 47408

Hyperlink:http://secunia.com/advisories/47408

External Source: BUGTRAQ

Name: 20111228 n.runs-SA-2011.004 - web programming languages and platforms - DoS through hash table

Hyperlink:http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html