ID de Prueba:	1.3.6.1.4.1.25623.1.0.71901
Categoría:	Red Hat Local Security Checks
Título:	RedHat Security Advisory RHSA-2012:0517
Resumen:	NOSUMMARY
Descripción:	Description: The remote host is missing updates announced in advisory RHSA-2012:0517. The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issue: * A flaw was found in the Linux kernel in the way splitting two extents in ext4_ext_convert_to_initialized() worked. A local, unprivileged user with the ability to mount and unmount ext4 file systems could use this flaw to cause a denial of service. (CVE-2011-3638, Moderate) Red Hat would like to thank Zheng Liu for reporting this issue. This update also fixes the following bug: * Starting with Red Hat Enterprise Linux 5.6, all devices that used the ixgbe driver would stop stripping VLAN tags when the device entered promiscuous mode. Placing a device in a bridge group causes the device to enter promiscuous mode. This caused various issues under certain configurations of bridging and VLANs. A patch has been provided to address this issue and the devices now properly strip VLAN tags in the driver whether in promiscuous mode or not. (BZ#809790) Users should upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect. Solution: Please note that this update is available via Red Hat Network. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date http://rhn.redhat.com/errata/RHSA-2012-0517.html Risk factor : Medium
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2011-3638 [oss-security] 20111024 Re: CVE Request -- kernel: ext4: ext4_ext_insert_extent() kernel oops http://www.openwall.com/lists/oss-security/2011/10/24/2 http://ftp.osuosl.org/pub/linux/kernel/v3.0/ChangeLog-3.0 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3 https://bugzilla.redhat.com/show_bug.cgi?id=747942 https://github.com/torvalds/linux/commit/667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3
Copyright	Copyright (c) 2012 E-Soft Inc. http://www.securityspace.com

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