Linux Kernel Information Disclosure and Denial of Service - Secunia Advisories - Vulnerability Intelligence

Linux Kernel Information Disclosure and Denial of Service
Secunia Advisory:	SA18487	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2006-01-17
Last Update:	2006-01-31
Popularity:	9,440 views

Critical:	Less critical
Impact:	Exposure of sensitive information DoS
Where:	Local system
Solution Status:	Vendor Patch

OS:	Linux Kernel 2.6.x

Subscribe:	Instant alerts on relevant vulnerabilities

CVE reference:	CVE-2006-0095 CVE-2005-3356

Description: Two vulnerabilities have been reported in the Linux Kernel, which can be exploited by malicious, local users to disclose potentially sensitive information, and to cause a DoS (Denial of Service). 1) The "dm-crypt" driver fails to clear memory before freeing it. This can be exploited by local users to obtain sensitive information (e.g. cryptographic keys). The vulnerability has been reported in version 2.6.15.1. Other versions may also be affected. 2) An error in the "mq_open" system call can cause the "mqueue_mnt->mnt_count" counter to be decremented twice when the "dentry_open" function call fails. This can potentially be exploited by malicious users to cause a kernel panic. Solution: Update to version 2.6.15.2. http://kernel.org/ Provided and/or discovered by: 1) Stefan Rompf 2) Doug Chapman Changelog: 2006-01-31: Updated "Description", "Solution" and credit sections. Added link to "Original Advisory". Original Advisory: Kernel.org: http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.15-git12.log http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.16-rc1 http://www.kernel.org/git/?p=linux/ke...520a339d62f942085e9888f66905eb8b350bd http://marc.theaimsgroup.com/?l=linux-kernel&m=113640535312572 http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.15.2 http://www.kernel.org/git/?p=linux/ke...dce9209161eb260cdf9e9172f72c3a02379e6 Red Hat Bugzilla: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=169130

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