Vulnerability identifier: #VU85831

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: CVE-2023-1544

CWE-ID: CWE-125

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 a boundary condition within the pvrdma_ring_next_elem_read() function in the QEMU implementation of VMWare's paravirtual RDMA device. A local user can trigger an out-of-bounds read error and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

QEMU: All versions

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External links
http://lists.nongnu.org/archive/html/qemu-devel/2023-03/msg00206.html
http://bugzilla.redhat.com/show_bug.cgi?id=2180364
http://security.netapp.com/advisory/ntap-20230511-0005/

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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.