SB2020101310 - Denial of service in QEMU
Published: October 13, 2020
Security Bulletin ID
SB2020101310
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) Out-of-bounds write (CVE-ID: CVE-2020-24352)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within the ATI VGA device implementation of the QEMU emulator incide of the ati_2d_blt() routine while handling MMIO write operations through the ati_mm_write() callback. A local privileged user on a guest operating system can run a specially crafted program to trigger out-of-bounds write and crash the QEMU process.
Remediation
Install update from vendor's website.