ID de Prueba:	1.3.6.1.4.1.25623.1.0.105517
Categoría:	F5 Local Security Checks
Título:	F5 BIG-IP - Linux kernel vulnerabilities CVE-2015-2925, CVE-2015-5307, and CVE-2015-8104
Resumen:	The remote host is missing a security patch.
Descripción:	Summary: The remote host is missing a security patch. Vulnerability Insight: CVE-2015-2925 The prepend_path function in fs/dcache.c in the Linux kernel before 4.2.4 does not properly handle rename actions inside a bind mount, which allows local users to bypass an intended container protection mechanism by renaming a directory, related to a 'double-chroot attack'. CVE-2015-5307 The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #AC (aka Alignment Check) exceptions, related to svm.c and vmx.c. CVE-2015-8104 The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #DB (aka Debug) exceptions, related to svm.c. Vulnerability Impact: A local user may be able to bypass a container protection mechanism by renaming a directory, or cause a denial-of-service (DoS) to the system by triggering certain exceptions. Solution: See the referenced vendor advisory for a solution. CVSS Score: 6.9 CVSS Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2015-2925 BugTraq ID: 73926 http://www.securityfocus.com/bid/73926 Debian Security Information: DSA-3364 (Google Search) http://www.debian.org/security/2015/dsa-3364 Debian Security Information: DSA-3372 (Google Search) http://www.debian.org/security/2015/dsa-3372 http://permalink.gmane.org/gmane.linux.kernel.containers/29173 http://permalink.gmane.org/gmane.linux.kernel.containers/29177 http://www.openwall.com/lists/oss-security/2015/04/04/4 RedHat Security Advisories: RHSA-2015:2636 http://rhn.redhat.com/errata/RHSA-2015-2636.html RedHat Security Advisories: RHSA-2016:0068 http://rhn.redhat.com/errata/RHSA-2016-0068.html SuSE Security Announcement: SUSE-SU-2015:2194 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00005.html SuSE Security Announcement: SUSE-SU-2015:2292 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00018.html SuSE Security Announcement: SUSE-SU-2016:0335 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00007.html SuSE Security Announcement: SUSE-SU-2016:0337 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00009.html SuSE Security Announcement: SUSE-SU-2016:0380 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00017.html SuSE Security Announcement: SUSE-SU-2016:0381 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00018.html SuSE Security Announcement: SUSE-SU-2016:0383 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00019.html SuSE Security Announcement: SUSE-SU-2016:0384 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00020.html SuSE Security Announcement: SUSE-SU-2016:0386 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00021.html SuSE Security Announcement: SUSE-SU-2016:0387 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00022.html SuSE Security Announcement: SUSE-SU-2016:0434 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00034.html http://www.ubuntu.com/usn/USN-2792-1 http://www.ubuntu.com/usn/USN-2794-1 http://www.ubuntu.com/usn/USN-2795-1 http://www.ubuntu.com/usn/USN-2798-1 http://www.ubuntu.com/usn/USN-2799-1 Common Vulnerability Exposure (CVE) ID: CVE-2015-5307 BugTraq ID: 77528 http://www.securityfocus.com/bid/77528 Debian Security Information: DSA-3396 (Google Search) http://www.debian.org/security/2015/dsa-3396 Debian Security Information: DSA-3414 (Google Search) http://www.debian.org/security/2015/dsa-3414 Debian Security Information: DSA-3454 (Google Search) http://www.debian.org/security/2016/dsa-3454 http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172435.html http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172300.html http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172187.html http://www.openwall.com/lists/oss-security/2015/11/10/6 RedHat Security Advisories: RHSA-2015:2645 http://rhn.redhat.com/errata/RHSA-2015-2645.html RedHat Security Advisories: RHSA-2016:0046 http://rhn.redhat.com/errata/RHSA-2016-0046.html http://www.securitytracker.com/id/1034105 SuSE Security Announcement: SUSE-SU-2015:2108 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00035.html SuSE Security Announcement: SUSE-SU-2015:2339 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00026.html SuSE Security Announcement: SUSE-SU-2015:2350 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00031.html SuSE Security Announcement: SUSE-SU-2016:0354 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00013.html SuSE Security Announcement: SUSE-SU-2016:2074 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html SuSE Security Announcement: openSUSE-SU-2015:2232 (Google Search) http://lists.opensuse.org/opensuse-updates/2015-12/msg00039.html SuSE Security Announcement: openSUSE-SU-2015:2250 (Google Search) http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html http://www.ubuntu.com/usn/USN-2800-1 http://www.ubuntu.com/usn/USN-2801-1 http://www.ubuntu.com/usn/USN-2802-1 http://www.ubuntu.com/usn/USN-2803-1 http://www.ubuntu.com/usn/USN-2804-1 http://www.ubuntu.com/usn/USN-2805-1 http://www.ubuntu.com/usn/USN-2806-1 http://www.ubuntu.com/usn/USN-2807-1 Common Vulnerability Exposure (CVE) ID: CVE-2015-8104 BugTraq ID: 77524 http://www.securityfocus.com/bid/77524 BugTraq ID: 91787 http://www.securityfocus.com/bid/91787 Debian Security Information: DSA-3426 (Google Search) http://www.debian.org/security/2015/dsa-3426 http://www.openwall.com/lists/oss-security/2015/11/10/5 SuSE Security Announcement: openSUSE-SU-2016:1008 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html http://www.ubuntu.com/usn/USN-2840-1 http://www.ubuntu.com/usn/USN-2841-1 http://www.ubuntu.com/usn/USN-2841-2 http://www.ubuntu.com/usn/USN-2842-1 http://www.ubuntu.com/usn/USN-2842-2 http://www.ubuntu.com/usn/USN-2843-1 http://www.ubuntu.com/usn/USN-2843-2 http://www.ubuntu.com/usn/USN-2844-1
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