#VU11235 Integer overflow in QEMU - CVE-2017-18043

Vulnerability identifier: #VU11235

Vulnerability risk: Medium

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:Green]

CVE-ID: CVE-2017-18043

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 attacker to cause DoS condition on the target system.

The weakness exists due to integer overflow when incorrect handling of certain rounding operations. A local attacker can cause the service to crash.

Mitigation
Update to version 2.11.1 or later.

Vulnerable software versions

QEMU: 2.8.0 - 2.11.0

---

External links
https://www.qemu.org/2018/02/14/qemu-2-11-1-and-spectre-update/

---

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.