Input validation error in Xen - CVE-2016-9379
Published: January 23, 2017 / Updated: July 28, 2020
Vulnerability identifier: #VU32216
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:U/U:Clear
CVE-ID: CVE-2016-9379
CWE-ID: CWE-20
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 privileged user to read and manipulate data.
The pygrub boot loader emulator in Xen, when S-expression output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via string quotes and S-expressions in the bootloader configuration file.
How to mitigate CVE-2016-9379
Install update from vendor's website.