---------------------------------------------------------------------- We are millions! Join us to protect all Pc's Worldwide. Download the new Secunia PSI 3.0 available in 5 languages and share it with your friends: http://secunia.com/psi ---------------------------------------------------------------------- TITLE: NSD "query_add_optional()" NULL-Pointer Dereference Vulnerability SECUNIA ADVISORY ID: SA49795 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/49795/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=49795 RELEASE DATE: 2012-07-20 DISCUSS ADVISORY: http://secunia.com/advisories/49795/#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/49795/ 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=49795 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 NSD, which can be exploited by malicious people to cause a DoS (Denial of Service). The vulnerability is caused due a NULL-pointer dereference error when handling DNS packets in the "query_add_optional()" function (query.c) and can be exploited to cause a child server process to crash and subsequently stop the server from responding by sending specially crafted DNS packets. The vulnerability is reported in versions 3.0.0 through 3.0.8, 3.1.0 through 3.1.1, and 3.2.0 through 3.2.11. SOLUTION: Update to version 3.2.12 or apply patch (please see the vendor's advisory for details). PROVIDED AND/OR DISCOVERED BY: The vendor credits Marek Vavrusa and Lubos Slovak, CZ.NIC Labs. ORIGINAL ADVISORY: NSD: http://www.nlnetlabs.nl/downloads/CVE-2012-2978.txt 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. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org ----------------------------------------------------------------------