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Secunia Security Advisory 45606

Secunia Security Advisory 45606
Posted Aug 24, 2011
Authored by Secunia | Site secunia.com

Secunia Security Advisory - Kingcope has discovered a vulnerability in Apache HTTP Server, which can be exploited by malicious people to cause a DoS (Denial of Service).

tags | advisory, web, denial of service
SHA-256 | 71b9eebcf61d04c5330a43520789ea82ee76415ec7c0e2a29eeb5b56eafee71b

Secunia Security Advisory 45606

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TITLE:
Apache HTTP Server ByteRange Filter Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA45606

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/45606/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=45606

RELEASE DATE:
2011-08-24

DISCUSS ADVISORY:
http://secunia.com/advisories/45606/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
* Last Update
* Popularity
* Comments
* Criticality Level
* Impact
* Where
* Solution Status
* Operating System / Software
* CVE Reference(s)

http://secunia.com/advisories/45606/

ONLY AVAILABLE IN CUSTOMER AREA:
* Authentication Level
* Report Reliability
* Secunia PoC
* Secunia Analysis
* Systems Affected
* Approve Distribution
* Remediation Status
* Secunia CVSS Score
* CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=45606

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
* AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Kingcope has discovered a vulnerability in Apache HTTP Server, which
can be exploited by malicious people to cause a DoS (Denial of
Service).

The vulnerability is caused due to an error within the ByteRange
filter when processing requests containing a large amount of ranges,
which can be exploited to exhaust memory via specially crafted HTTP
requests sent to the server.

The vulnerability is confirmed in version 2.2.19. Other versions may
also be affected.

SOLUTION:
Use a proxy to filter requests containing a large number of ranges.

PROVIDED AND/OR DISCOVERED BY:
Kingcope

ORIGINAL ADVISORY:
Kingcope:
http://archives.neohapsis.com/archives/fulldisclosure/2011-08/0203.html
https://issues.apache.org/bugzilla/show_bug.cgi?id=51714

http://mail-archives.apache.org/mod_mbox/httpd-dev/201108.mbox/%3Calpine.DEB.2.00.1108231306230.24177@eru.sfritsch.de%3E

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

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