Test ID:	1.3.6.1.4.1.25623.1.0.881076
Category:	CentOS Local Security Checks
Title:	CentOS Update for kernel CESA-2012:1061 centos5
Summary:	The remote host is missing an update for the 'kernel'; package(s) announced via the referenced advisory.
Description:	Summary: The remote host is missing an update for the 'kernel' package(s) announced via the referenced advisory. Vulnerability Insight: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security fix: * The fix for CVE-2011-1083 (RHSA-2012:0150) introduced a flaw in the way the Linux kernel's Event Poll (epoll) subsystem handled resource clean up when an ELOOP error code was returned. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2012-3375, Moderate) Bug fixes: * The qla2xxx driver handled interrupts for QLogic Fibre Channel adapters incorrectly due to a bug in a test condition for MSI-X support. This update corrects the bug and qla2xxx now handles interrupts as expected. (BZ#816373) * A process scheduler did not handle RPC priority wait queues correctly. Consequently, the process scheduler failed to wake up all scheduled tasks as expected after RPC timeout, which caused the system to become unresponsive and could significantly decrease system performance. This update modifies the process scheduler to handle RPC priority wait queues as expected. All scheduled tasks are now properly woken up after RPC timeout and the system behaves as expected. (BZ#817571) * The kernel version 2.6.18-308.4.1.el5 contained several bugs which led to an overrun of the NFS server page array. Consequently, any attempt to connect an NFS client running on Red Hat Enterprise Linux 5.8 to the NFS server running on the system with this kernel caused the NFS server to terminate unexpectedly and the kernel to panic. This update corrects the bugs causing NFS page array overruns and the kernel no longer crashes in this scenario. (BZ#820358) * An insufficiently designed calculation in the CPU accelerator in the previous kernel caused an arithmetic overflow in the sched_clock() function when system uptime exceeded 208.5 days. This overflow led to a kernel panic on the systems using the Time Stamp Counter (TSC) or Virtual Machine Interface (VMI) clock source. This update corrects the calculation so that this arithmetic overflow and kernel panic can no longer occur under these circumstances. Note: This advisory does not include a fix for this bug for the 32-bit architecture. (BZ#824654) * Under memory pressure, memory pages that are still a part of a checkpointing transaction can be invalidated. However, when the pages were invalidated, the journal head was re-filed onto the transactions' 'forget' list, which caused the current running transaction's block to be modified. As a result, block accounting was not properly performed on that modified block because it appeared to have al ... Description truncated, please see the referenced URL(s) for more information. Affected Software/OS: kernel on CentOS 5 Solution: Please install the updated packages. CVSS Score: 4.9 CVSS Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2012-3375 1027237 http://www.securitytracker.com/id?1027237 51164 http://secunia.com/advisories/51164 USN-1529-1 http://ubuntu.com/usn/usn-1529-1 [oss-security] 20120704 Re: CVE Request -- kernel: epoll: can leak file descriptors when returning -ELOOP http://www.openwall.com/lists/oss-security/2012/07/04/2 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=13d518074a952d33d47c428419693f63389547e9 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.24 https://bugzilla.redhat.com/show_bug.cgi?id=837502 https://downloads.avaya.com/css/P8/documents/100165733 https://github.com/torvalds/linux/commit/13d518074a952d33d47c428419693f63389547e9 Common Vulnerability Exposure (CVE) ID: CVE-2011-1083 43522 http://secunia.com/advisories/43522 48115 http://secunia.com/advisories/48115 48410 http://secunia.com/advisories/48410 48898 http://secunia.com/advisories/48898 48964 http://secunia.com/advisories/48964 71265 http://www.osvdb.org/71265 RHSA-2012:0862 http://rhn.redhat.com/errata/RHSA-2012-0862.html SUSE-SU-2012:0554 http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html SUSE-SU-2012:0616 http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html [linux-kernel] 20110225 [PATCH] optimize epoll loop detection http://article.gmane.org/gmane.linux.kernel/1105744 [linux-kernel] 20110226 Re: [PATCH] optimize epoll loop detection http://article.gmane.org/gmane.linux.kernel/1105888 [linux-kernel] 20110228 Re: [PATCH] optimize epoll loop detection http://article.gmane.org/gmane.linux.kernel/1106686 [oss-security] 20110301 CVE request: kernel: Multiple DoS issues in epoll http://openwall.com/lists/oss-security/2011/03/02/1 [oss-security] 20110302 Re: CVE request: kernel: Multiple DoS issues in epoll http://openwall.com/lists/oss-security/2011/03/02/2 https://bugzilla.redhat.com/show_bug.cgi?id=681578
Copyright	Copyright (C) 2012 Greenbone AG

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