National Cyber Awareness System

Vulnerability Summary for CVE-2012-4557

Overview

The mod_proxy_ajp module in the Apache HTTP Server 2.2.12 through 2.2.21 places a worker node into an error state upon detection of a long request-processing time, which allows remote attackers to cause a denial of service (worker consumption) via an expensive request.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: CONFIRM

Name: http://httpd.apache.org/security/vulnerabilities_22.html#2.2.22

Type: Advisory; Patch Information

Hyperlink:http://httpd.apache.org/security/vulnerabilities_22.html#2.2.22

External Source: CONFIRM

Name: https://bugzilla.redhat.com/show_bug.cgi?id=871685

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=871685

External Source: DEBIAN

Name: DSA-2579

Hyperlink:http://www.debian.org/security/2012/dsa-2579

External Source: CONFIRM

Name: http://svn.apache.org/viewvc?view=revision&revision=1227298

Hyperlink:http://svn.apache.org/viewvc?view=revision&revision=1227298

External Source: SUSE

Name: openSUSE-SU-2013:0248

Hyperlink:http://lists.opensuse.org/opensuse-updates/2013-02/msg00012.html

External Source: SUSE

Name: openSUSE-SU-2013:0243

Hyperlink:http://lists.opensuse.org/opensuse-updates/2013-02/msg00009.html