medium
5
CWE
399
Advisory Published
CVE Published
Updated

CVE-2012-4557

First published: Wed Oct 31 2012(Updated: )

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.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/httpd<2.2.22
2.2.22
Apache Http Server=2.2.12
Apache Http Server=2.2.13
Apache Http Server=2.2.14
Apache Http Server=2.2.15
Apache Http Server=2.2.16
Apache Http Server=2.2.17
Apache Http Server=2.2.18
Apache Http Server=2.2.19
Apache Http Server=2.2.20
Apache Http Server=2.2.21

Remedy

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

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2012-4557?

    CVE-2012-4557 is rated as a medium severity vulnerability that can lead to a denial of service.

  • How do I fix CVE-2012-4557?

    To fix CVE-2012-4557, upgrade the Apache HTTP Server to version 2.2.22 or later.

  • What versions are affected by CVE-2012-4557?

    CVE-2012-4557 affects Apache HTTP Server versions 2.2.12 through 2.2.21.

  • What type of attack does CVE-2012-4557 facilitate?

    CVE-2012-4557 allows remote attackers to cause a denial of service via expensive requests.

  • Is CVE-2012-4557 limited to specific platforms?

    CVE-2012-4557 is specific to the Apache HTTP Server and can occur on any platform running the affected versions.

Company

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