Privilege escalation in Xen - CVE-2017-12137
Published: August 16, 2017
Vulnerability identifier: #VU7950
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Green
CVE-ID: CVE-2017-12137
CWE-ID: CWE-264
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Xen Project
Affected software:
Xen
Xen
Detailed vulnerability description
The vulnerability allows a local attacker on a PV guest system to gain elevated privileges on the host system.
The weakness exists due to a flaw in the processing of guest-nominated L1 pagetable entries when mapping a grant reference. A local attacker on a PV guest system supply specially crafted data and execute arbitrary code on the host system.
The weakness exists due to a flaw in the processing of guest-nominated L1 pagetable entries when mapping a grant reference. A local attacker on a PV guest system supply specially crafted data and execute arbitrary code on the host system.
How to mitigate CVE-2017-12137
Install update from vendor's website.