high
7.1
CWE
400
Advisory Published
Updated

CVE-2009-1890

First published: Sun Jul 05 2009(Updated: )

The stream_reqbody_cl function in mod_proxy_http.c in the mod_proxy module in the Apache HTTP Server before 2.3.3, when a reverse proxy is configured, does not properly handle an amount of streamed data that exceeds the Content-Length value, which allows remote attackers to cause a denial of service (CPU consumption) via crafted requests.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Apache Http Server>=2.2.0<2.2.12
Fedora=11
Debian=5.0
Debian=4.0
Debian=6.0
Ubuntu=9.04
Ubuntu=8.10
Ubuntu=8.04
Ubuntu=6.06
redhat enterprise Linux server=5.0
redhat enterprise Linux workstation=5.0
redhat enterprise Linux desktop=5.0
redhat enterprise Linux server aus=5.3
redhat enterprise Linux eus=5.3

Remedy

http://svn.apache.org/viewvc/httpd/httpd/trunk/CHANGES?r1=790587&r2=790586&pathrev=790587

Remedy

http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/mod_proxy_http.c?r1=790587&r2=790586&pathrev=790587

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2009-1890?

    CVE-2009-1890 has a medium severity rating as it can lead to denial of service when exploiting the vulnerability.

  • How do I fix CVE-2009-1890?

    To fix CVE-2009-1890, upgrade the Apache HTTP Server to version 2.3.3 or later.

  • What systems are affected by CVE-2009-1890?

    CVE-2009-1890 affects multiple versions of Apache HTTP Server prior to 2.3.3, as well as specific versions of Fedora, Debian, and Ubuntu Linux.

  • What type of vulnerability is CVE-2009-1890?

    CVE-2009-1890 is classified as a denial of service vulnerability in the Apache HTTP Server.

  • Can CVE-2009-1890 be exploited remotely?

    Yes, CVE-2009-1890 can be remotely exploited by attackers to disrupt service.

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