4.8 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
0.001 Low
EPSS
Percentile
49.8%
A flaw was found in the copying tool nbdcopy
of libnbd. When performing multi-threaded copies using asynchronous nbd calls, nbdcopy was blindly treating the completion of an asynchronous command as successful, rather than checking the *error parameter. This could result in the silent creation of a corrupted destination image.
Use of nbdcopy --synchronous
will avoid undetected data corruption, but comes at a potential performance cost by avoiding the speed benefits of asynchronous operations. See the upstream security advisory for more information.