SB2021112208 - Privilege escalation in Xen
Published: November 22, 2021
Security Bulletin ID
SB2021112208
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-28710)
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions in certain VT-d IOMMUs, which leads to security restrictions bypass and privilege escalation.
Remediation
Install update from vendor's website.