Vulnerability identifier: #VU84979

Vulnerability risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4135

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
QEMU
Client/Desktop applications / Virtualization software

Vendor: QEMU

Description

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the NVMe virtual device. A remote administrator can trigger an out-of-bounds read error and read contents of memory on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

QEMU: 8.0.0 - 8.0.5

---

External links
http://access.redhat.com/security/cve/CVE-2023-4135
http://bugzilla.redhat.com/show_bug.cgi?id=2229101
http://www.zerodayinitiative.com/advisories/ZDI-CAN-21521
http://security.netapp.com/advisory/ntap-20230915-0012/

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.