Vulnerability identifier: #VU46318
Vulnerability risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-190
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
QEMU
Client/Desktop applications /
Virtualization software
Vendor: QEMU
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to integer overflow in the SM501 display driver implementation. This flaw occurs in the COPY_AREA macro while handling MMIO write operations through the sm501_2d_engine_write() callback. A remote user could abuse this flaw to crash the QEMU process in
sm501_2d_operation() in hw/display/sm501.c on the host, resulting in a
denial of service.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
QEMU: 4.0.0 - 5.0.0
External links
http://bugzilla.redhat.com/show_bug.cgi?id=1808510
http://usn.ubuntu.com/4467-1/
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.