Test ID:	1.3.6.1.4.1.25623.1.0.881690
Category:	CentOS Local Security Checks
Title:	CentOS Update for kernel CESA-2013:0630 centos6
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. This update fixes the following security issues: * A flaw was found in the way the xen_iret() function in the Linux kernel used the DS (the CPU's Data Segment) register. A local, unprivileged user in a 32-bit, para-virtualized Xen hypervisor guest could use this flaw to crash the guest or, potentially, escalate their privileges. (CVE-2013-0228, Important) * A flaw was found in the way file permission checks for the '/dev/cpu/[x]/msr' files were performed in restricted root environments (for example, when using a capability-based security model). A local user with the ability to write to these files could use this flaw to escalate their privileges to kernel level, for example, by writing to the SYSENTER_EIP_MSR register. (CVE-2013-0268, Important) The CVE-2013-0228 issue was discovered by Andrew Jones of Red Hat. This update also fixes several bugs. Documentation for these changes will be available shortly from the Technical Notes document linked to in the References section. Users should upgrade to these updated packages, which contain backported patches to correct these issues, and fix the bugs noted in the Technical Notes. The system must be rebooted for this update to take effect. Affected Software/OS: kernel on CentOS 6 Solution: Please install the updated packages. CVSS Score: 6.2 CVSS Vector: AV:L/AC:H/Au:N/C:C/I:C/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2013-0228 MDVSA-2013:176 http://www.mandriva.com/security/advisories?name=MDVSA-2013:176 USN-1795-1 http://www.ubuntu.com/usn/USN-1795-1 USN-1796-1 http://www.ubuntu.com/usn/USN-1796-1 USN-1797-1 http://www.ubuntu.com/usn/USN-1797-1 USN-1805-1 http://www.ubuntu.com/usn/USN-1805-1 USN-1808-1 http://www.ubuntu.com/usn/USN-1808-1 [oss-security] 20130213 Xen Security Advisory 42 (CVE-2013-0228) - Linux kernel hits general protection if %ds is corrupt for 32-bit PVOPS. http://www.openwall.com/lists/oss-security/2013/02/13/10 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=13d2b4d11d69a92574a55bfd985cfb0ca77aebdc http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.9 https://bugzilla.redhat.com/show_bug.cgi?id=906309 https://github.com/torvalds/linux/commit/13d2b4d11d69a92574a55bfd985cfb0ca77aebdc Common Vulnerability Exposure (CVE) ID: CVE-2013-0268 SUSE-SU-2013:0674 http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00018.html [oss-security] 20130207 Re: CVE request -- Linux kernel: x86/msr: /dev/cpu/*/msr local privilege escalation http://www.openwall.com/lists/oss-security/2013/02/07/12 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c903f0456bc69176912dee6dd25c6a66ee1aed00 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.6 https://bugzilla.redhat.com/show_bug.cgi?id=908693 https://github.com/torvalds/linux/commit/c903f0456bc69176912dee6dd25c6a66ee1aed00 openSUSE-SU-2013:1187 http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
Copyright	Copyright (C) 2013 Greenbone AG

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