---------------------------------------------------------------------- Secure your corporate defenses and reduce complexity in handling vulnerability threats with the new Secunia Vulnerability Intelligence Manager (VIM) Beta. Join the beta: http://secunia.com/products/corporate/vim/ ---------------------------------------------------------------------- TITLE: FreeBSD "pfs_getextattr()" Privilege Escalation Vulnerability SECUNIA ADVISORY ID: SA42200 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/42200/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=42200 RELEASE DATE: 2010-11-12 DISCUSS ADVISORY: http://secunia.com/advisories/42200/#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/42200/ 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=42200 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 FreeBSD, which can be exploited by malicious, local users to cause a DoS (Denial of Service) or potentially gain escalated privileges. The vulnerability is caused due to a mutex unlock error in the "pfs_getextattr()" function within the "pseudofs" module when handling extended attributes. This can be exploited to cause a kernel panic and crash the system. Successful exploitation may allow execution of arbitrary code in the kernel, but requires the system to allow NULL page mapping. The vulnerability is reported in version 7.x prior to 7.3-RELEASE and version 8.x prior to 8.0-RC1. SOLUTION: Update FreeBSD or apply patch. Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ PROVIDED AND/OR DISCOVERED BY: The vendor credits Przemyslaw Frasunek. ORIGINAL ADVISORY: http://security.freebsd.org/advisories/FreeBSD-SA-10:09.pseudofs.asc 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 ----------------------------------------------------------------------