Medium severity · published Feb 2, 2021
CVE-2021-21285
In Docker before versions 9.03.15, 20.10.3 there is a vulnerability in which pulling an intentionally malformed Docker image manifest crashes the dockerd daemon
6.5
CVSS
3.3%
EPSS
No
On KEV
Description
In Docker before versions 9.03.15, 20.10.3 there is a vulnerability in which pulling an intentionally malformed Docker image manifest crashes the dockerd daemon. Versions 20.10.3 and 19.03.15 contain patches that prevent the daemon from crashing.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.3% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
10.0 · source: NVD
DO
Docker · Docker
before 19.03.15; 20.0.0 before 20.10.3 · source: NVD
ES
E-series Santricity OS Controller · Netapp
11.0 through 11.60.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-21285
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-21285
Release Notes
https://docs.docker.com/engine/release-notes/#20103
Patch
https://github.com/moby/moby/commit/8d3179546e79065adefa67cc697c09d0ab137d30
Release Notes
https://github.com/moby/moby/releases/tag/v19.03.15
Release Notes
https://github.com/moby/moby/releases/tag/v20.10.3
Third Party Advisory
https://github.com/moby/moby/security/advisories/GHSA-6fj5-m822-rqx8
Patch
https://security.gentoo.org/glsa/202107-23
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