Test ID:	1.3.6.1.4.1.25623.1.0.881717
Category:	CentOS Local Security Checks
Title:	CentOS Update for kernel CESA-2013:0747 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. This update fixes the following security issues: * A flaw was found in the Xen netback driver implementation in the Linux kernel. A privileged guest user with access to a para-virtualized network device could use this flaw to cause a long loop in netback, leading to a denial of service that could potentially affect the entire system. (CVE-2013-0216, Moderate) * A flaw was found in the Xen PCI device back-end driver implementation in the Linux kernel. A privileged guest user in a guest that has a PCI passthrough device could use this flaw to cause a denial of service that could potentially affect the entire system. (CVE-2013-0231, Moderate) * A NULL pointer dereference flaw was found in the IP packet transformation framework (XFRM) implementation in the Linux kernel. A local user who has the CAP_NET_ADMIN capability could use this flaw to cause a denial of service. (CVE-2013-1826, Moderate) * Information leak flaws were found in the XFRM implementation in the Linux kernel. A local user who has the CAP_NET_ADMIN capability could use these flaws to leak kernel stack memory to user-space. (CVE-2012-6537, Low) * An information leak flaw was found in the logical link control (LLC) implementation in the Linux kernel. A local, unprivileged user could use this flaw to leak kernel stack memory to user-space. (CVE-2012-6542, Low) * Two information leak flaws were found in the Linux kernel's Asynchronous Transfer Mode (ATM) subsystem. A local, unprivileged user could use these flaws to leak kernel stack memory to user-space. (CVE-2012-6546, Low) * An information leak flaw was found in the TUN/TAP device driver in the Linux kernel's networking implementation. A local user with access to a TUN/TAP virtual interface could use this flaw to leak kernel stack memory to user-space. (CVE-2012-6547, Low) Red Hat would like to thank the Xen project for reporting the CVE-2013-0216 and CVE-2013-0231 issues. This update also fixes the following bugs: * The IPv4 code did not correctly update the Maximum Transfer Unit (MTU) of the designed interface when receiving ICMP Fragmentation Needed packets. Consequently, a remote host did not respond correctly to ping attempts. With this update, the IPv4 code has been modified so the MTU of the designed interface is adjusted as expected in this situation. The ping command now provides the expected output. (BZ#923353) * Previously, the be2net code expected the last word of an MCC complete ... 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: 6.2 CVSS Vector: AV:L/AC:H/Au:N/C:C/I:C/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2012-6537 http://www.openwall.com/lists/oss-security/2013/03/05/13 RedHat Security Advisories: RHSA-2013:0744 http://rhn.redhat.com/errata/RHSA-2013-0744.html http://www.ubuntu.com/usn/USN-1792-1 http://www.ubuntu.com/usn/USN-1798-1 Common Vulnerability Exposure (CVE) ID: CVE-2012-6542 RedHat Security Advisories: RHSA-2013:1645 http://rhn.redhat.com/errata/RHSA-2013-1645.html http://www.ubuntu.com/usn/USN-1805-1 http://www.ubuntu.com/usn/USN-1808-1 Common Vulnerability Exposure (CVE) ID: CVE-2012-6546 Common Vulnerability Exposure (CVE) ID: CVE-2012-6547 http://www.mandriva.com/security/advisories?name=MDVSA-2013:176 Common Vulnerability Exposure (CVE) ID: CVE-2013-0216 MDVSA-2013:176 SUSE-SU-2013:0674 http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00018.html [oss-security] 20130205 Xen Security Advisory 39 (CVE-2013-0216,CVE-2013-0217) - Linux netback DoS via malicious guest ring. http://www.openwall.com/lists/oss-security/2013/02/05/12 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=48856286b64e4b66ec62b94e504d0b29c1ade664 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.8 https://bugzilla.redhat.com/show_bug.cgi?id=910883 https://github.com/torvalds/linux/commit/48856286b64e4b66ec62b94e504d0b29c1ade664 openSUSE-SU-2013:0395 http://lists.opensuse.org/opensuse-security-announce/2013-03/msg00004.html openSUSE-SU-2013:0925 http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html Common Vulnerability Exposure (CVE) ID: CVE-2013-0231 52059 http://secunia.com/advisories/52059 57740 http://www.securityfocus.com/bid/57740 89903 http://osvdb.org/89903 DSA-2632 http://www.debian.org/security/2013/dsa-2632 [oss-security] 20130205 Xen Security Advisory 43 (CVE-2013-0231) - Linux pciback DoS via not rate limited log messages. http://www.openwall.com/lists/oss-security/2013/02/05/9 xen-pcibackenablemsi-dos(81923) https://exchange.xforce.ibmcloud.com/vulnerabilities/81923 Common Vulnerability Exposure (CVE) ID: CVE-2013-1826 RHSA-2013:0744 USN-1829-1 http://www.ubuntu.com/usn/USN-1829-1 [oss-security] 20130307 Re: CVE Requests (maybe): Linux kernel: various info leaks, some NULL ptr derefs http://www.openwall.com/lists/oss-security/2013/03/07/2 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=864745d291b5ba80ea0bd0edcbe67273de368836 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.7 https://bugzilla.redhat.com/show_bug.cgi?id=919384 https://github.com/torvalds/linux/commit/864745d291b5ba80ea0bd0edcbe67273de368836 Common Vulnerability Exposure (CVE) ID: CVE-2013-0217 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7d5145d8eb2b9791533ffe4dc003b129b9696c48 https://github.com/torvalds/linux/commit/7d5145d8eb2b9791533ffe4dc003b129b9696c48
Copyright	Copyright (C) 2013 Greenbone AG

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