Home/CVE/An improper locking issue was found in the virStoragePoolLookupByTargetPath API of libvirt. It occurs in the storagePool
CVE

CVE-2021-3667

An improper locking issue was found in the virStoragePoolLookupByTargetPath API of libvirt. It occurs in the storagePool

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.

MEDIUM · CVSS 6.5 EPSS 0.00435
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-667Improper Locking
CWE-667Improper Locking
▤

Affected Products & Versions

4
redhat libvirt>= 4.1.0 and <= 7.5.0
redhat enterprise linuxall versions
netapp ontap select deploy administration utilityall versions
debian linuxall versions
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD02 Mar 2022 · 11:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

12
suse-csafopenSUSE-SU-2024:11008-1
usnUSN-5399-1
msrcCVE-2021-3667
suse-csafopenSUSE-SU-2021:1451-1
suse-csafSUSE-SU-2021:3586-1
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.redhat.com/show_bug.cgi?id=1986094Issue TrackingVendor Advisory
https://gitlab.com/libvirt/libvirt/-/commit/447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87PatchThird Party Advisory
https://libvirt.org/git/?p=libvirt.gitPatch
https://lists.debian.org/debian-lts-announce/2024/04/msg00000.htmlMailing ListThird Party Advisory
https://security.gentoo.org/glsa/202210-06Third Party Advisory
https://security.netapp.com/advisory/ntap-20220331-0005/Third Party Advisory
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