openEuler 20.03 LTS SP1 update for qemu

1) Out-of-bounds read

EUVDB-ID: #VU85831

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 - Out-of-bounds read

Exploit availability: No

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 repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

qemu-seabios: before 4.1.0-77

qemu-help: before 4.1.0-77

qemu-guest-agent: before 4.1.0-77

qemu-debugsource: before 4.1.0-77

qemu-block-ssh: before 4.1.0-77

qemu-img: before 4.1.0-77

qemu-debuginfo: before 4.1.0-77

qemu-block-curl: before 4.1.0-77

qemu-block-iscsi: before 4.1.0-77

qemu-block-rbd: before 4.1.0-77

qemu: before 4.1.0-77

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1894

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.