---------------------------------------------------------------------- Alerts when vulnerabilities pose a threat to your infrastructure The enhanced reporting module of the Secunia Vulnerability Intelligence Manager (VIM) enables you to combine advisory and ticket information, and generate policy compliance statistics. Using your asset list preferences, customised notifications are issued as soon as a new vulnerability is discovered - a valuable tool for documenting mitigation strategies. Watch our quick solution overview: http://www.youtube.com/user/Secunia#p/a/u/0/M1Y9sJqR2SY ---------------------------------------------------------------------- TITLE: ISC BIND Negative Caching RRSIG RRsets Denial of Service Vulnerability SECUNIA ADVISORY ID: SA44719 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/44719/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=44719 RELEASE DATE: 2011-05-27 DISCUSS ADVISORY: http://secunia.com/advisories/44719/#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/44719/ 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=44719 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 BIND, which can be exploited by malicious people to cause a DoS (Denial of Service). The vulnerability is caused due to an assertion error within the processing of negative responses containing large RRSIG RRsets, which can be exploited to crash named. Successful exploitation requires that the attacker can e.g. directly query or trick an authorised client into querying the targeted caching resolvers. The vulnerability is reported in versions 9.4-ESV-R3 and later, 9.6-ESV-R2 and later, 9.6.3, 9.7.1 and later, and 9.8.0 and later. SOLUTION: Update to version 9.4-ESV-R4-P1 as soon as available or versions 9.6-ESV-R4-P1, 9.7.3-P1, and 9.8.0-P2. PROVIDED AND/OR DISCOVERED BY: The vendor credits Frank Kloeker and Michael Sinatra. ORIGINAL ADVISORY: https://www.isc.org/software/bind/advisories/cve-2011-1910 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/ ---------------------------------------------------------------------- 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 ----------------------------------------------------------------------