Test Kennung:	1.3.6.1.4.1.25623.1.0.72173
Kategorie:	Debian Local Security Checks
Titel:	Debian Security Advisory DSA 2544-1 (xen)
Zusammenfassung:	The remote host is missing an update to xen;announced via advisory DSA 2544-1.
Beschreibung:	Summary: The remote host is missing an update to xen announced via advisory DSA 2544-1. Vulnerability Insight: Multiple denial of service vulnerabilities have been discovered in xen, an hypervisor. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2012-3494: It was discovered that set_debugreg allows writes to reserved bits of the DR7 debug control register on amd64 (x86-64) paravirtualised guests, allowing a guest to crash the host. CVE-2012-3496: Matthew Daley discovered that XENMEM_populate_physmap, when called with the MEMF_populate_on_demand flag set, a BUG (detection routine) can be triggered if a translating paging mode is not being used, allowing a guest to crash the host. For the stable distribution (squeeze), these problems have been fixed in version 4.0.1-5.4. For the testing distribution (wheezy), these problems will be fixed soon. For the unstable distribution (sid), these problems have been fixed in version 4.1.3-2. Solution: We recommend that you upgrade your xen packages. CVSS Score: 4.7 CVSS Vector: AV:L/AC:M/Au:N/C:N/I:N/A:C
Querverweis:	Common Vulnerability Exposure (CVE) ID: CVE-2012-3494 BugTraq ID: 55400 http://www.securityfocus.com/bid/55400 Debian Security Information: DSA-2544 (Google Search) http://www.debian.org/security/2012/dsa-2544 http://security.gentoo.org/glsa/glsa-201309-24.xml https://security.gentoo.org/glsa/201604-03 http://wiki.xen.org/wiki/Security_Announcements#XSA-12_hypercall_set_debugreg_vulnerability https://bugzilla.redhat.com/show_bug.cgi?id=851139 http://lists.xen.org/archives/html/xen-announce/2012-09/msg00000.html http://www.openwall.com/lists/oss-security/2012/09/05/5 http://osvdb.org/85197 http://www.securitytracker.com/id?1027479 http://secunia.com/advisories/50472 http://secunia.com/advisories/50530 http://secunia.com/advisories/51413 http://secunia.com/advisories/55082 SuSE Security Announcement: SUSE-SU-2012:1129 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00001.html SuSE Security Announcement: SUSE-SU-2012:1132 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00003.html SuSE Security Announcement: SUSE-SU-2012:1133 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html SuSE Security Announcement: SUSE-SU-2012:1135 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00005.html SuSE Security Announcement: SUSE-SU-2012:1162 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00012.html SuSE Security Announcement: openSUSE-SU-2012:1172 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html SuSE Security Announcement: openSUSE-SU-2012:1174 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00018.html SuSE Security Announcement: openSUSE-SU-2012:1572 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html SuSE Security Announcement: openSUSE-SU-2012:1573 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html XForce ISS Database: xen-setdebugreg-dos(78265) https://exchange.xforce.ibmcloud.com/vulnerabilities/78265 Common Vulnerability Exposure (CVE) ID: CVE-2012-3496 BugTraq ID: 55412 http://www.securityfocus.com/bid/55412 https://bugzilla.redhat.com/show_bug.cgi?id=854590 http://lists.xen.org/archives/html/xen-announce/2012-09/msg00002.html http://www.openwall.com/lists/oss-security/2012/09/05/7 http://www.osvdb.org/85200 http://securitytracker.com/id?1027481 XForce ISS Database: xen-xenmempopulatephysmap-dos(78267) https://exchange.xforce.ibmcloud.com/vulnerabilities/78267
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