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>> Apache mod_proxy "ap_proxy_date_canon()" Remote Denial of Service Issue

Title : Apache mod_proxy "ap_proxy_date_canon()" Remote Denial of Service Issue
VUPEN ID : VUPEN/ADV-2007-3020
CVE ID : CVE-2007-3847
Rated as : Low Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2007-08-31


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format 

A vulnerability has been identified in Apache, which could be exploited by remote attackers to cause a denial of service. This issue is caused by an error in the "ap_proxy_date_canon()" [modules/proxy/proxy_util.c] function when processing specially crafted date headers, which could be exploited by remote attackers to cause a vulnerable process to crash when a reverse or forward proxy is configured.

Affected Products

Apache versions prior to 2.0.61-dev
Apache versions prior to 2.2.6-dev

Solution

Upgrade to Apache version 2.0.61-dev or 2.2.6-dev :
http://httpd.apache.org/download.cgi

References

http://www.vupen.com/english/advisories/2007/3020
http://httpd.apache.org/security/vulnerabilities_22.html
http://httpd.apache.org/security/vulnerabilities_20.html
http://svn.apache.org/viewvc?view=rev&revision=561616

Credits

Vulnerability reported by the vendor.

ChangeLog

2007-08-31 : Initial release

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