PT-2021-7322 · Libvirt+6 · Libvirt+6

Jim Fehlig · Published 2017-01-28 · Updated 2024-06-15 · CVE-2021-4147

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions libvirt (affected versions not specified)

Description A flaw was found in the libvirt libxl driver, allowing a malicious guest to continuously reboot itself and cause libvirtd on the host to deadlock or crash, resulting in a denial of service condition. The issue is related to insufficient locking in the library.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Improper Locking

Weakness Enumeration

CWE-667

Related Identifiers

ALT-PU-2017-1096

ALT-PU-2022-1114

ALT-PU-2022-1426

BDU:2022-05679

CVE-2021-4147

DLA-3778-1

OPENSUSE-SU-2022:0021-1

OPENSUSE-SU-2022_0021-1

OPENSUSE-SU-2024:11758-1

SUSE-SU-2022:0021-1

SUSE-SU-2022:0031-1

SUSE-SU-2022:0032-1

SUSE-SU-2022:0041-1

SUSE-SU-2022:0042-1

SUSE-SU-2022:0045-1

SUSE-SU-2022:0045-2

SUSE-SU-2022:0128-1

SUSE-SU-2022_0021-1

USN-5399-1

Affected Products

Alt Linux

Astra Linux

Linuxmint

Red Os

Suse

Ubuntu

Libvirt

References · 59

• https://bdu.fstec.ru/vul/2022-05679 · Security Note
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2022-0819SE17 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-3975 · Vendor Advisory
• http://repo.red-soft.ru/redos/7.3c/x86_64/updates · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-4147 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2034195 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:0041-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-3631 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-0897 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:0021-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:0128-1 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-3778-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:0031-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-4147 · Security Note
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2022-0926SE47 · Vendor Advisory