CVE-2014-8594

The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP).

• CWE-20

• http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.htmlThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.htmlThird Party Advisory
• http://secunia.com/advisories/62672Permissions Required
• http://www.debian.org/security/2015/dsa-3140Third Party Advisory
• http://www.securityfocus.com/bid/71149
• http://xenbits.xen.org/xsa/advisory-109.htmlPatch, Vendor Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/98767
• https://security.gentoo.org/glsa/201504-04
• http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.htmlThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.htmlThird Party Advisory
• http://secunia.com/advisories/62672Permissions Required
• http://www.debian.org/security/2015/dsa-3140Third Party Advisory
• http://www.securityfocus.com/bid/71149
• http://xenbits.xen.org/xsa/advisory-109.htmlPatch, Vendor Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/98767
• https://security.gentoo.org/glsa/201504-04

Published

Nov 19, 2014

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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