---------------------------------------------------------------------- The final version of the CSI 6.0 has been released. Find out why this is not just another Patch Management solution: http://secunia.com/blog/325/ ---------------------------------------------------------------------- TITLE: Xen netback Two Denial of Service Vulnerabilities SECUNIA ADVISORY ID: SA52056 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/52056/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=52056 RELEASE DATE: 2013-02-06 DISCUSS ADVISORY: http://secunia.com/advisories/52056/#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/52056/ 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=52056 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: Two vulnerabilities have been reported in Xen, which can be exploited by malicious, local users in a guest virtual machine to cause a DoS (Denial of Service). 1) An input sanitization error within the netback implementation when handling the ring producer/consumer pointers can be exploited to trigger an infinite loop and render the system unusable. 2) A memory leak error within the netback implementation can be exploited to render the system unusable. The vulnerabilities are reported in versions 3.x including Linux 2.6.18. SOLUTION: Fixed in the Mercurial repository. PROVIDED AND/OR DISCOVERED BY: Reported by the vendor. ORIGINAL ADVISORY: http://www.openwall.com/lists/oss-security/2013/02/05/8 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 ----------------------------------------------------------------------