SB2017100241 - Fedora 27 update for xen
Published: October 2, 2017 Updated: April 24, 2025
Security Bulletin ID
SB2017100241
Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Adjecent network
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Improper input validation (CVE-ID: CVE-2017-13673)
The vulnerability allows an adjacent authenticated attacker to cause DoS condition on the target system.
The vulnerability exists in the vga display update in mis-calculated the region for the dirty bitmap snapshot in case split screen mode in the cpu_physical_memory_snapshot_get_dirty function due to assertion failure. An adjacent attacker can cause the service to crash.
2) Out-of-bounds read (CVE-ID: CVE-2017-13672)
The vulnerability allows an adjacent unauthenticated attacker to cause DoS condition on the target system.The weakness exists due to out-of-bounds read. An adjacent attacker can trigger memory corruption and cause the service to crash.
Remediation
Install update from vendor's website.