CVE-2012-3495
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2012-3495
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2012-3495.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2012-3495
- Downstream
- Published
- 2012-11-23T20:55:03Z
- Modified
- 2025-08-09T19:01:28Z
- Summary
- [none]
- Details
-
The physdevgetfreepirq 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 getfree_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
-
- http://secunia.com/advisories/51413
- http://secunia.com/advisories/55082
- http://security.gentoo.org/glsa/glsa-201309-24.xml
- https://security.gentoo.org/glsa/201604-03
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00003.html
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html
- http://lists.xen.org/archives/html/xen-announce/2012-09/msg00001.html
- http://support.citrix.com/article/CTX134708
- http://wiki.xen.org/wiki/Security_Announcements#XSA-13_hypercall_physdev_get_free_pirq_vulnerability
- http://www.openwall.com/lists/oss-security/2012/09/05/6
- http://www.securityfocus.com/bid/55406
- http://www.securitytracker.com/id?1027480
- http://xenbits.xen.org/hg/xen-4.1-testing.hg/rev/6779ddca8593