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TITLE:
ISC DHCPv6 Message Processing Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA43006

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43006/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43006

RELEASE DATE:
2011-01-28

DISCUSS ADVISORY:
http://secunia.com/advisories/43006/#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/43006/

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=43006

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 reported in ISC DHCP, which can be exploited
by malicious people to cause a DoS (Denial of Service).

The vulnerability is cause due to an error when processing DHCPv6
messages for a previously declined address. This can be exploited to
cause an assertion failure and crash the service.

NOTE: This affects DHCP version 6 servers only; DHCPv4 is not
affected.

SOLUTION:
Update to version 4.1.2-P1, 4.1-ESV-R1, and 4.2.1b1.

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
http://www.isc.org/software/dhcp/advisories/cve-2011-0413

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

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