CVE-2021-3667
Published: 28 July 2021
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.
Priority
Low
Status
| Package | Release | Status |
|---|---|---|
|
libvirt Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Needed
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Needed
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(code not present)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(code not present)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(code not present)
|
|
|
Patches: Upstream: https://libvirt.org/git/?p=libvirt.git;a=commit;h=447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87 |
||