SB2017012309 - Input validation error in Xen
Published: January 23, 2017 Updated: July 28, 2020
Security Bulletin ID
SB2017012309
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2016-9379)
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.
Remediation
Install update from vendor's website.