CVE-2014-8594

Description

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).

Weakness classification

• nvd@nist.gov: CWE-20

Primary references

• cve@mitre.org — Third Party Advisory
• cve@mitre.org — Third Party Advisory
• cve@mitre.org — Permissions Required
• cve@mitre.org — Third Party Advisory
• cve@mitre.org
• cve@mitre.org — Patch, Vendor Advisory
• cve@mitre.org
• cve@mitre.org
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Permissions Required
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory