---------------------------------------------------------------------- Meet Secunia @ Microsoft Management Summit (MMS) in Las Vegas, USA (21-25 March). http://secunia.com/company/events/mms_2011/ ---------------------------------------------------------------------- TITLE: Linux Kernel Multiple Vulnerabilities SECUNIA ADVISORY ID: SA43537 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/43537/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=43537 RELEASE DATE: 2011-03-20 DISCUSS ADVISORY: http://secunia.com/advisories/43537/#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/43537/ 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=43537 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: Vasiliy Kulikov has reported a weakness and some vulnerabilities in the Linux Kernel, which can be exploited by malicious, local users to disclose system information or cause a DoS (Denial of Service). 1) The "sco_sock_getsockopt_old()" function in net/bluetooth/sco.c is not properly initialising a member of a certain structure before copying it to userspace, which can be exploited to disclose kernel stack memory. 2) The "bnep_sock_ioctl()" function in net/bluetooth/bnep/sock.c does not properly terminate the device name, which can be exploited to cause a "BUG()" or disclose system information. 3) The "do_replace()" function in net/bridge/netfilter/ebtables.c does not properly terminate a string, which can be exploited to disclose system information. Successful exploitation of vulnerabilities #2 and #3 requires CAP_NET_ADMIN capabilities. SOLUTION: Restrict access to trusted users only. PROVIDED AND/OR DISCOVERED BY: Vasiliy Kulikov ORIGINAL ADVISORY: 1) https://lkml.org/lkml/2011/2/14/49 2) https://lkml.org/lkml/2011/2/14/50 3) https://lkml.org/lkml/2011/2/14/51 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 ----------------------------------------------------------------------