SB2015021601 - Input validation error in Xen
Published: February 16, 2015 Updated: July 28, 2020
Security Bulletin ID
SB2015021601
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2015-0268)
The vulnerability allows a local non-authenticated attacker to perform a denial of service (DoS) attack.
The vgic_v2_to_sgi function in arch/arm/vgic-v2.c in Xen 4.5.x, when running on ARM hardware with general interrupt controller (GIC) version 2, allows local guest users to cause a denial of service (host crash) by writing an invalid value to the GICD.SGIR register.
Remediation
Install update from vendor's website.