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).

Score

CVSS 2.0 5.4 Medium

Status

Modified - cve@mitre.org

Published

2014-11-19

Last modified

2024-08-06

Weaknesses

CWE-20

Affected products

• Debian Linux (Debian)
• Opensuse (Opensuse)
• Xen (Xen)

References

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