CVEvulnerability

CVE-2015-7835

7.2 HIGH Published 2015-10-30 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2015-10-30
Last modified
2026-06-17
Assigner
[email protected]
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-20, CWE-264

Description

The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping.

Affected configurations

• xen xen 3.4.0 • xen xen 3.4.1 • xen xen 3.4.2 • xen xen 3.4.3 • xen xen 3.4.4 • xen xen 4.0.0 • xen xen 4.0.1 • xen xen 4.0.2 • xen xen 4.0.3 • xen xen 4.0.4 • xen xen 4.1.0 • xen xen 4.1.1 • xen xen 4.1.2 • xen xen 4.1.3 • xen xen 4.1.4 • xen xen 4.1.5 • xen xen 4.1.6.1 • xen xen 4.2.0 • xen xen 4.2.1 • xen xen 4.2.2 • xen xen 4.2.3 • xen xen 4.3.0 • xen xen 4.3.1 • xen xen 4.3.2 • xen xen 4.3.4 • xen xen 4.4.0 • xen xen 4.4.1 • xen xen 4.5.0 • xen xen 4.5.1 • xen xen 4.6.0

Related

Weakness · not in database (1)

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References