CVE-2014-8867 Information

Description

The acceleration support for the \REP MOVS\ instruction in Xen 4.4.x 3.2.x and earlier lacks properly bounds checking for memory mapped I/O (MMIO) emulated in the hypervisor which allows local HVM guests to cause a denial of service (host crash) via unspecified vectors.

Reference

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705 http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html http://rhn.redhat.com/errata/RHSA-2015-0783.html http://secunia.com/advisories/59949 http://secunia.com/advisories/62672 http://support.citrix.com/article/CTX200288 http://support.citrix.com/article/CTX201794 http://www.debian.org/security/2015/dsa-3140 http://www.securityfocus.com/bid/71331 http://xenbits.xenproject.org/xsa/advisory-112.html https://security.gentoo.org/glsa/201504-04