CVE-2012-3495

CVSS V2 Medium 6.1 CVSS V3 None
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.
Overview
  • CVE ID
  • CVE-2012-3495
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2012-11-23T20:55:03
  • Last Modified Date
  • 2017-07-01T01:29:02
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:* 1 OR 6.0.2
cpe:2.3:a:citrix:xenserver:5.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:citrix:xenserver:5.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:citrix:xenserver:5.6:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:citrix:xenserver:5.6:fp1:*:*:*:*:*:* 1 OR
cpe:2.3:a:citrix:xenserver:5.6:sp2:*:*:*:*:*:* 1 OR
cpe:2.3:a:citrix:xenserver:6.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:xen:xen:4.1.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:xen:xen:4.1.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:xen:xen:4.1.3:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:P/I:P/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • COMPLETE
  • Base Score
  • 6.1
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 8.5
References
Reference URL Reference Tags
http://www.securityfocus.com/bid/55406
http://www.openwall.com/lists/oss-security/2012/09/05/6
http://www.securitytracker.com/id?1027480
http://support.citrix.com/article/CTX134708
http://lists.xen.org/archives/html/xen-announce/2012-09/msg00001.html
http://wiki.xen.org/wiki/Security_Announcements#XSA-13_hypercall_physdev_get_free_pirq_vulnerability
http://xenbits.xen.org/hg/xen-4.1-testing.hg/rev/6779ddca8593
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html
http://secunia.com/advisories/51413
http://secunia.com/advisories/55082
http://security.gentoo.org/glsa/glsa-201309-24.xml
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html
https://security.gentoo.org/glsa/201604-03
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2012-3495
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3495
History
Created Old Value New Value Data Type Notes
2022-05-10 09:41:08 Added to TrackCVE