#VU88538 Integer underflow in QEMU - CVE-2024-24474

Vulnerability identifier: #VU88538

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-24474

CWE-ID: CWE-191

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 integer underflow within the esp_do_nodma() function in hw/scsi/esp.c. A local user can pass specially crafted data to the application, trigger an integer underflow and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

QEMU: before 8.2.0

---

External links
https://gitlab.com/qemu-project/qemu/-/issues/1810
https://github.com/qemu/qemu/commit/77668e4b9bca03a856c27ba899a2513ddf52bb52
https://gist.github.com/1047524396/5ce07b9d387095c276b1cd234ae5615e

---

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.