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.
MLIST:[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 MLIST:[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 CONFIRM:http://support.citrix.com/article/CTX134708 CONFIRM:http://wiki.xen.org/wiki/Security_Announcements#XSA-13_hypercall_physdev_get_free_pirq_vulnerability CONFIRM:http://xenbits.xen.org/hg/xen-4.1-testing.hg/rev/6779ddca8593 GENTOO:GLSA-201309-24 URL:http://security.gentoo.org/glsa/glsa-201309-24.xml GENTOO:GLSA-201604-03 URL:https://security.gentoo.org/glsa/201604-03 SUSE:openSUSE-SU-2012:1172 URL:http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html SUSE:SUSE-SU-2012:1132 URL:http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00003.html SUSE:SUSE-SU-2012:1133 URL:http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html SUSE:openSUSE-SU-2012:1572 URL:http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html SUSE:openSUSE-SU-2012:1573 URL:http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html BID:55406 URL:http://www.securityfocus.com/bid/55406 SECTRACK:1027480 URL:http://www.securitytracker.com/id?1027480 SECUNIA:51413 URL:http://secunia.com/advisories/51413 SECUNIA:55082 URL:http://secunia.com/advisories/55082
Assigning CNA
N/A
Date Entry Created
20120614	Disclaimer: The entry 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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