Detections
Analytics
EulerOS Virtualization 2.9.1 : qemu (EulerOS-SA-2022-1601)
high Nessus Plugin ID 160623
Synopsis
The remote EulerOS Virtualization host is missing a security update.Description
According to the versions of the qemu package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :- A use-after-free vulnerability was found in the virtio-net device of QEMU. It could occur when the descriptor's address belongs to the non direct access region, due to num_buffers being set after the virtqueue elem has been unmapped. A malicious guest could use this flaw to crash QEMU, resulting in a denial of service condition, or potentially execute code on the host with the privileges of the QEMU process. (CVE-2021-3748)
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Update the affected qemu packages.See Also
Plugin Details
Severity: High
ID: 160623
File Name: EulerOS_SA-2022-1601.nasl
Version: 1.3
Type: local
Family: Huawei Local Security Checks
Published: 5/5/2022
Updated: 1/9/2023
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.3
CVSS v2
Risk Factor: Medium
Base Score: 6.9
Temporal Score: 5.1
Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2021-3748
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:huawei:euleros:qemu, cpe:/o:huawei:euleros:uvp:2.9.1
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/uvp_version
Exploit Ease: No known exploits are available
Patch Publication Date: 5/5/2022
Vulnerability Publication Date: 11/3/2021
Reference Information
CVE: CVE-2021-3748