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CVE-2021-4147

Date: March 25, 2022

A flaw was found in the libvirt libxl driver. A malicious guest could continuously reboot itself and cause libvirtd on the host to deadlock or crash, resulting in a denial of service condition.

Language: C

Severity Score

6.5

Related Resources (7)

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-4147

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-4147

Url: https://security.netapp.com/advisory/ntap-20220513-0004/

Url: https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html

Url: https://bugzilla.redhat.com/show_bug.cgi?id=2034195

Url: https://security-tracker.debian.org/tracker/CVE-2021-4147

Url: https://www.mend.io/vulnerability-database/CVE-2021-4147

Severity Score

6.5

Weakness Type (CWE)

Improper Locking

CWE-667

CVSS v3.1

Base Score:	6.5
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	CHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	4.9
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	COMPLETE
Additional information:

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