Permissions, Privileges, and Access Controls in Xen - CVE-2019-17343
Published: March 5, 2019 / Updated: July 28, 2020
Vulnerability identifier: #VU17904
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Clear
CVE-ID: CVE-2019-17343
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Xen Project
Affected software:
Xen
Xen
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to insecure processing of PV domains and related configuration. An untrusted PV domain with access to a physical device can DMA into its own pagetables, leading to privilege escalation.
How to mitigate CVE-2019-17343
Apply patches: