#VU85832 Input validation error in QEMU - CVE-2020-24165

Vulnerability identifier: #VU85832

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-24165

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
QEMU
Client/Desktop applications / Virtualization software

Vendor: QEMU

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of user-supplied input in TCG Accelerator. A local user can escalate privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

QEMU: before 4.2.1

---

External links
https://bugs.launchpad.net/qemu/+bug/1863025
https://pastebin.com/iqCbjdT8
https://lists.debian.org/debian-lts-announce/2023/10/msg00006.html
https://security.netapp.com/advisory/ntap-20231006-0012/

---

Q & A

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.