SB2020092340 - Resource management error in xen (Alpine package)
Published: September 23, 2020
Security Bulletin ID
SB2020092340
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource management error (CVE-ID: CVE-2020-25602)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources within the application when processing guest requests to the "MISC_ENABLE MSR" register in Xen. A remote privileged PV guest can run a specially crafted program and crash Xen.
Only non-non-Intel x86 systems are affected.
Remediation
Install update from vendor's website.