CWE
17 20
Advisory Published
CVE Published
Updated

CVE-2015-3183: Input Validation

First published: Thu Jul 16 2015(Updated: )

Apache HTTP Server 2.4.16 release fixes the following issue: *) SECURITY: <a href="https://access.redhat.com/security/cve/CVE-2015-3183">CVE-2015-3183</a> (cve.mitre.org) core: Fix chunk header parsing defect. Remove apr_brigade_flatten(), buffering and duplicated code from the HTTP_IN filter, parse chunks in a single pass with zero copy. Limit accepted chunk-size to 2^63-1 and be strict about chunk-ext authorized characters. [Graham Leggett, Yann Ylavic] External References: <a href="http://www.apache.org/dist/httpd/CHANGES_2.4.16">http://www.apache.org/dist/httpd/CHANGES_2.4.16</a>

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/httpd<2.2.31
2.2.31
redhat/httpd<2.4.16
2.4.16
Apache Http Server>=2.2.0<2.2.31
Apache Http Server>=2.4.0<2.4.16
Apache Http Server<=2.4.13

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2015-3183?

    CVE-2015-3183 is classified as a medium severity vulnerability that affects chunk header parsing in Apache HTTP Server.

  • How do I fix CVE-2015-3183?

    To fix CVE-2015-3183, update your Apache HTTP Server to version 2.4.16 or later, or version 2.2.31 or later.

  • Which versions of Apache HTTP Server are affected by CVE-2015-3183?

    CVE-2015-3183 affects Apache HTTP Server versions prior to 2.4.16 and versions prior to 2.2.31.

  • What type of security issue is represented by CVE-2015-3183?

    CVE-2015-3183 represents a core security issue related to defect in chunk header parsing.

  • Is there a known workaround for CVE-2015-3183?

    There are no known workarounds for CVE-2015-3183, and the recommended action is to update to a secure version.

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