Low severity · published Mar 18, 2021
CVE-2019-14850
A denial of service vulnerability was discovered in nbdkit 1.12.7, 1.14.1 and 1.15.1
3.7
CVSS
1.6%
EPSS
No
On KEV
Description
A denial of service vulnerability was discovered in nbdkit 1.12.7, 1.14.1 and 1.15.1. An attacker could connect to the nbdkit service and cause it to perform a large amount of work in initializing backend plugins, by simply opening a connection to the service. This vulnerability could cause resource consumption and degradation of service in nbdkit, depending on the plugins configured on the server-side.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux · Redhat
8.0; 8.0 · source: NVD
EL
Enterprise Linux Server · Redhat
7.0 · source: NVD
NB
Nbdkit · Nbdkit Project
before 1.12.7; 1.14.0 before 1.14.1; 1.15.0 before 1.15.1 · source: NVD
VI
Virtualization · Redhat
4.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-14850
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-14850
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1757258
Exploit
https://www.redhat.com/archives/libguestfs/2019-September/msg00084.html
More from Nbdkit
6.5
CVE-2025-47712
A flaw exists in the nbdkit "blocksize" filter that can be triggered by a specific type of client request
6.5
CVE-2025-47711
There's a flaw in the nbdkit server when handling responses from its plugins regarding the status of data blocks
6.5
CVE-2019-14851
A denial of service vulnerability was discovered in nbdkit
3.1
CVE-2021-3716
A flaw was found in nbdkit due to to improperly caching plaintext state across the STARTTLS encryption boundary