CVE-2021-21285
published 2021-02-02CVE-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…
PriorityP434medium6.5CVSS 3.1
AVNACLPRNUIRSUCNINAH
EPSS
3.29%
87.1th percentile
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.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | docker.io | < docker.io 20.10.3+dfsg1-1 (bookworm) | docker.io 20.10.3+dfsg1-1 (bookworm) |
| docker | docker | < 19.03.15 | 19.03.15 |
| docker | docker | >= 20.0.0 < 20.10.3 | 20.10.3 |
| github.com | moby_moby | >= 0 < 19.3.15 | 19.3.15 |
| github.com | moby_moby | >= 20.10.0-beta1 < 20.10.3 | 20.10.3 |
| moby | moby | < 19.03.15 | 19.03.15 |
| moby | moby | — | — |
| msrc | cbl_mariner_1.0_arm | — | — |
| msrc | cbl_mariner_1.0_x64 | — | — |
| msrc | cm1_moby-buildx_0.4.1+azure-3_on_cbl_mariner_1.0 | — | — |
| msrc | cm1_moby-cli_19.03.15+azure-2_on_cbl_mariner_1.0 | — | — |
| msrc | cm1_moby-engine_19.03.15+azure-2_on_cbl_mariner_1.0 | — | — |
| netapp | e-series_santricity_os_controller | 11.0 – 11.60.3 | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_msrc6.5MEDIUM
vendor_redhat6.5MEDIUM
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Microsoft
Docker daemon crash during image pull of malicious image
vendor_msrc·2021-02-09·CVSS 6.5
CVE-2021-21285 [MEDIUM] CWE-754 Docker daemon crash during image pull of malicious image
Docker daemon crash during image pull of malicious image
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
GitHub_M: GitHub_M
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https:
Red Hat
docker: daemon crash during image pull of malicious image
vendor_redhat·2021-02-01·CVSS 6.5
CVE-2021-21285 [MEDIUM] CWE-354 docker: daemon crash during image pull of malicious image
docker: daemon crash during image pull of malicious image
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.
A flaw was found in Docker. Pulling an intentionally malformed Docker image manifest could lead to a crash of the `dockerd` daemon, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Package: docker (Red Hat Enterprise Linux 7) - Out of support scope
Debian
CVE-2021-21285: docker.io - In Docker before versions 9.03.15, 20.10.3 there is a vulnerability in which pul...
vendor_debian·2021·CVSS 6.5
CVE-2021-21285 [MEDIUM] CVE-2021-21285: docker.io - In Docker before versions 9.03.15, 20.10.3 there is a vulnerability in which pul...
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.
Scope: local
bookworm: resolved (fixed in 20.10.3+dfsg1-1)
bullseye: resolved (fixed in 20.10.3+dfsg1-1)
forky: resolved (fixed in 20.10.3+dfsg1-1)
sid: resolved (fixed in 20.10.3+dfsg1-1)
trixie: resolved (fixed in 20.10.3+dfsg1-1)
OSV
moby docker daemon crash during image pull of malicious image
osv·2024-01-31
CVE-2021-21285 [MEDIUM] moby docker daemon crash during image pull of malicious image
moby docker daemon crash during image pull of malicious image
### Impact
Pulling an intentionally malformed Docker image manifest crashes the `dockerd` daemon.
### Patches
Versions 20.10.3 and 19.03.15 contain patches that prevent the daemon from crashing.
### Credits
Maintainers would like to thank Josh Larsen, Ian Coldwater, Duffie Cooley, Rory McCune for working on the vulnerability and Brad Geesaman for responsibly disclosing it to [email protected].
GHSA
moby docker daemon crash during image pull of malicious image
ghsa·2024-01-31
CVE-2021-21285 [MEDIUM] CWE-400 moby docker daemon crash during image pull of malicious image
moby docker daemon crash during image pull of malicious image
### Impact
Pulling an intentionally malformed Docker image manifest crashes the `dockerd` daemon.
### Patches
Versions 20.10.3 and 19.03.15 contain patches that prevent the daemon from crashing.
### Credits
Maintainers would like to thank Josh Larsen, Ian Coldwater, Duffie Cooley, Rory McCune for working on the vulnerability and Brad Geesaman for responsibly disclosing it to [email protected].
OSV
CVE-2021-21285: In Docker before versions 9
osv·2021-02-02·CVSS 6.5
CVE-2021-21285 [MEDIUM] CVE-2021-21285: In Docker before versions 9
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://docs.docker.com/engine/release-notes/#20103https://github.com/moby/moby/commit/8d3179546e79065adefa67cc697c09d0ab137d30https://github.com/moby/moby/releases/tag/v19.03.15https://github.com/moby/moby/releases/tag/v20.10.3https://github.com/moby/moby/security/advisories/GHSA-6fj5-m822-rqx8https://security.gentoo.org/glsa/202107-23https://security.netapp.com/advisory/ntap-20210226-0005/https://www.debian.org/security/2021/dsa-4865https://docs.docker.com/engine/release-notes/#20103https://github.com/moby/moby/commit/8d3179546e79065adefa67cc697c09d0ab137d30https://github.com/moby/moby/releases/tag/v19.03.15https://github.com/moby/moby/releases/tag/v20.10.3https://github.com/moby/moby/security/advisories/GHSA-6fj5-m822-rqx8https://security.gentoo.org/glsa/202107-23https://security.netapp.com/advisory/ntap-20210226-0005/https://www.debian.org/security/2021/dsa-4865
2021-02-02
Published