CVE-2020-13800
QEMU: ati-vga: infinite recursion in ati_mm_read/write calls may lead to DoS
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 3, 2020
Updated · November 2, 2026
Description
An infinite recursion flaw was found in the ati-vga emulator of the QEMU. The issue occurs in ati_mm_read/write routines while accessing VGA registers, for certain values of the 'mm_index' variable. This flaw allows a guest user or process to crash the QEMU process, resulting in a denial of service.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 2.5CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:L
CWE-835 · Loop with Unreachable Exit Condition