CVE-2021-3667

Published: Mar 2, 2022Updated: Feb 10, 2025 Sources: CVE List NVD BDUCWE-667

6.5MEDIUM

NVD MITRE

Description

An improper locking issue was found in the virStoragePoolLookupByTargetPath API of libvirt. It occurs in the storagePoolLookupByTargetPath function where a locked virStoragePoolObj object is not properly released on ACL permission failure. Clients connecting to the read-write socket with limited ACL permissions could use this flaw to acquire the lock and prevent other users from accessing storage pool/volume APIs, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:NIntegrity

None

A:HAvailability

High

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Weaknesses

CWE-667

Affected Products

Red Hat Inc.

commercial·USaka redhat, red hat

libvirtOn-prem

Operating Systems / linux-distro

enterprise linuxOn-premOS

Operating Systems / linux-distro

netapp

commercial·US

ontap select deploy administration utility

Hardware Firmware

debian

oss-project·GBaka debian gnu/linux

debian linuxOn-premOS

Operating Systems / linux-distro

Сообщество свободного программного обеспечения

oss-projectaka fsf

Debian GNU/LinuxOn-premOS

Operating Systems / linux-distro

ООО «Ред Софт»

commercial·RUaka red soft

РЕД ОСOn-premOS

Operating Systems / linux-distro

ООО «РусБИТех-Астра»

commercial·RUaka rusbitech-astra

Astra Linux Special EditionOn-premOS

Operating Systems / linux-distro

and 2 more affected products View all →

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Privilege Escalation

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References

https://bugzilla.redhat.com/show_bug.cgi?id=1986094

bugzilla.redhat.com

https://gitlab.com/libvirt/libvirt/-/commit/447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87

gitlab.com

https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87

libvirt.org

and 11 more references View all →

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