---------------------------------------------------------------------- Secunia integrated with Microsoft WSUS http://secunia.com/blog/71/ ---------------------------------------------------------------------- TITLE: Linux Kernel USB Information Disclosure and Denial of Service SECUNIA ADVISORY ID: SA38601 VERIFY ADVISORY: http://secunia.com/advisories/38601/ DESCRIPTION: A weakness and a vulnerability have been reported in the Linux Kernel, which can be exploited by malicious, local users to cause a DoS (Denial of Service) and disclose potentially sensitive information. 1) The vulnerability is caused due to the "processcompl()" and "processcompl_compat()" functions in drivers/usb/core/devio.c potentially returning kernel memory content to userspace processes, which can be exploited to e.g. disclose potentially sensitive information. 2) The weakness is caused due to a memory leak when handling certain error cases in drivers/usb/core/devio.c, which can be exploited to e.g. cause a DoS due to memory exhaustion. Note: Successful exploitation requires access to USB userspace devices. SOLUTION: Fixed in the GIT repository. PROVIDED AND/OR DISCOVERED BY: 1) Marcus Meissner, SUSE 2) Reported by the vendor. ORIGINAL ADVISORY: 1) http://www.openwall.com/lists/oss-security/2010/02/17/1 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=d4a4683ca054ed9917dfc9e3ff0f7ecf74ad90d6 2) http://www.openwall.com/lists/oss-security/2010/02/17/2 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=ddeee0b2eec2a51b0712b04de4b39e7bec892a53 ---------------------------------------------------------------------- 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 ----------------------------------------------------------------------