---------------------------------------------------------------------- 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: KVM XSAVE Handling Denial of Service Vulnerability SECUNIA ADVISORY ID: SA51160 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/51160/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=51160 RELEASE DATE: 2012-11-07 DISCUSS ADVISORY: http://secunia.com/advisories/51160/#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/51160/ 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=51160 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 KVM, which can be exploited by malicious, local users to cause a DoS (Denial of Service). The vulnerability is caused due to an error when handling the X86_CR4_OSXSAVE bit upon guest enter and can be exploited to cause a crash via KVM_SET_SREGS IOCTL. Successful exploitation requires a host without the XSAVE feature support. SOLUTION: No official solution is currently available. PROVIDED AND/OR DISCOVERED BY: Jon Howell ORIGINAL ADVISORY: https://bugzilla.redhat.com/show_bug.cgi?id=862900 http://article.gmane.org/gmane.comp.emulators.kvm.devel/100742 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 ----------------------------------------------------------------------