Ubuntu.comUB:CVE-2021-3667CVE-2021-3667
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.5 Low
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
60.8%
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.
Bugs
Notes
| Author | Note |
|---|---|
| mdeslaur | issue introduced in 4.1 |
Related
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.5 Low
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
60.8%