Privilege escalation in Xen - CVE-2017-10912
Published: June 21, 2017 / Updated: July 28, 2020
Vulnerability identifier: #VU7145
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-10912
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists due to a flaw in the page transfer function (GNTTABOP_transfer). A local attacker on two guest systems (a PV and an HVM guest) can obtain potentially sensitive data or gain elevated privileges.
Successful exploitation of the vulnerability results in privilege escalation.
The weakness exists due to a flaw in the page transfer function (GNTTABOP_transfer). A local attacker on two guest systems (a PV and an HVM guest) can obtain potentially sensitive data or gain elevated privileges.
Successful exploitation of the vulnerability results in privilege escalation.
Affected software
Xen
Gentoo Linux
Fedora
xen
Gentoo Linux
Fedora
xen
How to mitigate CVE-2017-10912
Install update from vendor's website.
xen - addressed in versions 4.6.5-7.fc24, 4.7.2-7.fc25, 4.8.1-4.fc26