Test Kennung:	1.3.6.1.4.1.25623.1.0.881222
Kategorie:	CentOS Local Security Checks
Titel:	CentOS Update for kernel CESA-2012:0007 centos5
Zusammenfassung:	The remote host is missing an update for the 'kernel'; package(s) announced via the referenced advisory.
Beschreibung:	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 buffer overflow flaw was found in the way the Linux kernel's XFS file system implementation handled links with overly long path names. A local, unprivileged user could use this flaw to cause a denial of service or escalate their privileges by mounting a specially-crafted disk. (CVE-2011-4077, Important) * The fix for CVE-2011-2482 provided by RHSA-2011:1212 introduced a regression: on systems that do not have Security-Enhanced Linux (SELinux) in Enforcing mode, a socket lock race could occur between sctp_rcv() and sctp_accept(). A remote attacker could use this flaw to cause a denial of service. By default, SELinux runs in Enforcing mode on Red Hat Enterprise Linux 5. (CVE-2011-4348, Important) * The proc file system could allow a local, unprivileged user to obtain sensitive information or possibly cause integrity issues. (CVE-2011-1020, Moderate) * A missing validation flaw was found in the Linux kernel's m_stop() implementation. A local, unprivileged user could use this flaw to trigger a denial of service. (CVE-2011-3637, Moderate) * A flaw was found in the Linux kernel's Journaling Block Device (JBD). A local attacker could use this flaw to crash the system by mounting a specially-crafted ext3 or ext4 disk. (CVE-2011-4132, Moderate) * A flaw was found in the Linux kernel's encode_share_access() implementation. A local, unprivileged user could use this flaw to trigger a denial of service by creating a regular file on an NFSv4 (Network File System version 4) file system via mknod(). (CVE-2011-4324, Moderate) * A flaw was found in the Linux kernel's NFS implementation. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2011-4325, Moderate) * A missing boundary check was found in the Linux kernel's HFS file system implementation. A local attacker could use this flaw to cause a denial of service or escalate their privileges by mounting a specially-crafted disk. (CVE-2011-4330, Moderate) Red Hat would like to thank Kees Cook for reporting CVE-2011-1020, and Clement Lecigne for reporting CVE-2011-4330. This update also fixes several bugs and adds one enhancement. 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 and add the enhancement noted in the Technical Notes. The system must be rebooted for this update to take effect. Affected Software/OS: kernel on CentOS 5 Solution: Please install the updated packages. CVSS Score: 7.8 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
Querverweis:	Common Vulnerability Exposure (CVE) ID: CVE-2011-1020 BugTraq ID: 46567 http://www.securityfocus.com/bid/46567 http://seclists.org/fulldisclosure/2011/Jan/421 http://www.halfdog.net/Security/2011/SuidBinariesAndProcInterface/ https://lkml.org/lkml/2011/2/7/414 https://lkml.org/lkml/2011/2/7/474 https://lkml.org/lkml/2011/2/7/368 https://lkml.org/lkml/2011/2/7/404 https://lkml.org/lkml/2011/2/7/466 https://lkml.org/lkml/2011/2/10/21 https://lkml.org/lkml/2011/2/9/417 http://openwall.com/lists/oss-security/2011/02/24/18 http://openwall.com/lists/oss-security/2011/02/25/2 http://secunia.com/advisories/43496 http://securityreason.com/securityalert/8107 XForce ISS Database: kernel-procpid-security-bypass(65693) https://exchange.xforce.ibmcloud.com/vulnerabilities/65693 Common Vulnerability Exposure (CVE) ID: CVE-2011-3637 http://www.openwall.com/lists/oss-security/2012/02/06/1 Common Vulnerability Exposure (CVE) ID: CVE-2011-4077 HPdes Security Advisory: HPSBGN02970 http://marc.info/?l=bugtraq&m=139447903326211&w=2 http://xorl.wordpress.com/2011/12/07/cve-2011-4077-linux-kernel-xfs-readlink-memory-corruption/ http://www.openwall.com/lists/oss-security/2011/10/26/1 http://www.openwall.com/lists/oss-security/2011/10/26/3 http://oss.sgi.com/archives/xfs/2011-10/msg00345.html http://secunia.com/advisories/48964 Common Vulnerability Exposure (CVE) ID: CVE-2011-4132 BugTraq ID: 50663 http://www.securityfocus.com/bid/50663 http://xorl.wordpress.com/2011/12/08/cve-2011-4132-linux-kernel-jbdjbd2-local-dos/ http://www.openwall.com/lists/oss-security/2011/11/11/6 http://www.openwall.com/lists/oss-security/2011/11/13/4 http://securitytracker.com/id?1026325 http://secunia.com/advisories/48898 SuSE Security Announcement: SUSE-SU-2012:0554 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html SuSE Security Announcement: SUSE-SU-2015:0812 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html Common Vulnerability Exposure (CVE) ID: CVE-2011-4324 http://www.openwall.com/lists/oss-security/2012/02/06/3 Common Vulnerability Exposure (CVE) ID: CVE-2011-4325 BugTraq ID: 51366 http://www.securityfocus.com/bid/51366 XForce ISS Database: linux-kernel-nfs-dos(72297) https://exchange.xforce.ibmcloud.com/vulnerabilities/72297 Common Vulnerability Exposure (CVE) ID: CVE-2011-4330 BugTraq ID: 50750 http://www.securityfocus.com/bid/50750 https://lkml.org/lkml/2011/11/9/303 http://www.openwall.com/lists/oss-security/2011/11/21/14 http://www.openwall.com/lists/oss-security/2011/11/21/5 Common Vulnerability Exposure (CVE) ID: CVE-2011-4348 http://www.openwall.com/lists/oss-security/2012/03/05/2 Common Vulnerability Exposure (CVE) ID: CVE-2011-2482 http://www.openwall.com/lists/oss-security/2011/08/30/1 RedHat Security Advisories: RHSA-2011:1212 http://rhn.redhat.com/errata/RHSA-2011-1212.html
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