CVE-2021-3667

Summary

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.

Affected Software

Weaknesses

• CWE-667: CWE-667 (improper Locking)

ADP Enrichment

CVE Program Container

Additional References

• https://bugzilla.redhat.com/show_bug.cgi?id=1986094
• https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87
• https://gitlab.com/libvirt/libvirt/-/commit/447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87
• https://security.netapp.com/advisory/ntap-20220331-0005/
• https://security.gentoo.org/glsa/202210-06
• https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1986094
• https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87
• https://gitlab.com/libvirt/libvirt/-/commit/447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87
• https://security.netapp.com/advisory/ntap-20220331-0005/
• https://security.gentoo.org/glsa/202210-06
• https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html

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