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Apache Byte-Range Filter and MPM Worker Denial of Service Vulnerabilities
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Secunia Advisory:
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SA16559
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Release Date:
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2005-08-25
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Last Update:
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2005-10-25
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Popularity:
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22,545 views
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Critical:
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Moderately critical
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Impact:
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DoS
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Apache 2.0.x
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| CVE reference: | CVE-2005-2728
CVE-2005-2970
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Description:
Two vulnerabilities have been reported in Apache, which can be exploited by malicious people to cause a DoS (Denial of Service).
1) A vulnerability exists due to an error in the byte-range filter when handling a request containing the HTTP "Range" header. This can be exploited to cause Apache to consume large amounts of memory.
The vulnerability has been reported in version 2.0.49. Other versions may also be affected.
2) A memory leak in MPM "worker.c" when handling certain aborted connections may be exploited to cause a DoS.
Solution:
Update to version 2.0.55.
http://httpd.apache.org/download.cgi
Provided and/or discovered by:
1) Filip Sneppe
Changelog:
2005-09-05: Added CVE reference.
2005-10-14: Version 2.0.55 released. Updated "Solution" and "Original Advisory" sections.
2005-10-25: Added information of additional vulnerability.
Original Advisory:
Apache.org:
http://issues.apache.org/bugzilla/show_bug.cgi?id=29962
http://www.apache.org/dist/httpd/Announcement2.0.html
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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