🛡️ USN-5399-1 — libvirt

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

libvirt vulnerabilities

It was discovered that libvirt incorrectly handled certain locking

operations. A local attacker could possibly use this issue to cause libvirt

to stop accepting connections, resulting in a denial of service. This issue

only affected Ubuntu 20.04 LTS. (CVE-2021-3667)

It was discovered that libvirt incorrectly handled threads during shutdown.

A local attacker could possibly use this issue to cause libvirt to crash,

resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS

and Ubuntu 20.04 LTS. (CVE-2021-3975)

It was discovered that libvirt incorrectly handled the libxl driver. An

attacker inside a guest could possibly use this issue to cause libvirtd

to crash or stop responding, resulting in a denial of service. This issue

only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 21.10.

(CVE-2021-4147)

It was discovered that libvirt incorrectly handled the nwfilter driver. A

local attacker could possibly use this issue to cause libvirt to crash,

resulting in a denial of service. (CVE-2022-0897)

It was discovered that libvirt incorrectly handled the polkit access

control driver. A local attacker could possibly use this issue to cause

libvirt to crash, resulting in a denial of service. This issue only

affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-25637)

It was discovered that libvirt incorrectly generated SELinux labels. In

environments using SELinux, this issue could allow the sVirt confinement

to be bypassed. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04

LTS. (CVE-2021-3631)

Affected software

USN-5399-1 is recorded against 1 package.

  • libvirt (fixed in 6.0.0-0ubuntu8.16)

Timeline and source

Published on 2 May 2022 and last revised on 27 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Advisory)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2022-05-02
Updated 2026-08-12
Modified 2026-04-27
Fix URL N/A

Affected Packages

Software From version Fixed in
libvirt — 6.0.0-0ubuntu8.16

Similar Threats

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