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TITLE:
MaraDNS "compress_add_dlabel_points()" Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA43027

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43027/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43027

RELEASE DATE:
2011-01-24

DISCUSS ADVISORY:
http://secunia.com/advisories/43027/#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/43027/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
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https://ca.secunia.com/?page=viewadvisory&vuln_id=43027

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:
A vulnerability has been discovered in MaraDNS, which can be
exploited by malicious people to cause a DoS (Denial of Service) and
potentially compromise a vulnerable system.

The vulnerability is caused due to an error within the
"compress_add_dlabel_points()" function in dns/Compress.c, which can
be exploited to cause a heap-based buffer overflow by sending a
specially crafted request.

The vulnerability is confirmed in version 1.4.05. Other versions may
also be affected.

SOLUTION:
Restrict access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
Reported in a Debian bug by Witold Baryluk.

ORIGINAL ADVISORY:
Debian Bug #610834:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=610834

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
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