CVE-2012-3495 | BDVDB-2026-53590 Detail
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.
Impact#
No impact statement in the source data.
Weaknesses#
No weakness recorded in the source data.
References#
- http://secunia.com/advisories/55082
- http://xenbits.xen.org/hg/xen-4.1-testing.hg/rev/6779ddca8593
- http://lists.xen.org/archives/html/xen-announce/2012-09/msg00001.html
- http://secunia.com/advisories/51413
- http://security.gentoo.org/glsa/glsa-201309-24.xml
- http://wiki.xen.org/wiki/Security_Announcements#XSA-13_hypercall_physdev_get_free_pirq_vulnerability
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html
- http://www.securityfocus.com/bid/55406
- http://www.securitytracker.com/id?1027480
- https://security.gentoo.org/glsa/201604-03
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00003.html
- http://support.citrix.com/article/CTX134708
- http://www.openwall.com/lists/oss-security/2012/09/05/6
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.