Out-of-bounds write in QEMU - CVE-2020-24352
Published: October 13, 2020
Vulnerability identifier: #VU47531
CSH Severity: Low
CVSS v4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-24352
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
QEMU
Opensuse
Opensuse
How to mitigate CVE-2020-24352
Install updates from vendor's website.
QEMU - update to 5.0.0