CVE - CVE-2012-3495

CVE-ID
CVE-2012-3495	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
The physdev_get_free_pirq hypercall in arch/x86/physdev.c in Xen 4.1.x and Citrix XenServer 6.0.2 and earlier uses the return value of the get_free_pirq function as an array index without checking that the return value indicates an error, which allows guest OS users to cause a denial of service (invalid memory write and host crash) and possibly gain privileges via unspecified vectors.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:1027480 URL:http://www.securitytracker.com/id?1027480 MISC:51413 URL:http://secunia.com/advisories/51413 MISC:55082 URL:http://secunia.com/advisories/55082 MISC:55406 URL:http://www.securityfocus.com/bid/55406 MISC:GLSA-201309-24 URL:http://security.gentoo.org/glsa/glsa-201309-24.xml MISC:GLSA-201604-03 URL:https://security.gentoo.org/glsa/201604-03 MISC:SUSE-SU-2012:1132 URL:http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00003.html MISC:SUSE-SU-2012:1133 URL:http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html MISC:[Xen-announce] 20120905 Xen Security Advisory 13 (CVE-2012-3495) - hypercall physdev_get_free_pirq vulnerability URL:http://lists.xen.org/archives/html/xen-announce/2012-09/msg00001.html MISC:[oss-security] 20120905 Xen Security Advisory 13 (CVE-2012-3495) - hypercall physdev_get_free_pirq vulnerability URL:http://www.openwall.com/lists/oss-security/2012/09/05/6 MISC:http://support.citrix.com/article/CTX134708 URL:http://support.citrix.com/article/CTX134708 MISC:http://wiki.xen.org/wiki/Security_Announcements#XSA-13_hypercall_physdev_get_free_pirq_vulnerability URL:http://wiki.xen.org/wiki/Security_Announcements#XSA-13_hypercall_physdev_get_free_pirq_vulnerability MISC:http://xenbits.xen.org/hg/xen-4.1-testing.hg/rev/6779ddca8593 URL:http://xenbits.xen.org/hg/xen-4.1-testing.hg/rev/6779ddca8593 MISC:openSUSE-SU-2012:1172 URL:http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html MISC:openSUSE-SU-2012:1572 URL:http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html MISC:openSUSE-SU-2012:1573 URL:http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html
Assigning CNA
Red Hat, Inc.
Date Record Created
20120614	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20120614)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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