CVE-2021-21285
Docker daemon crash during image pull of malicious image
MEDIUM
6.5
CVSS Score
Published: February 2, 2021 at 05:55 PM UTC
Updated: June 17, 2026 at 03:35 AM UTC
4 products affected across 4 vendorsDebian LinuxE Series Santricity OS ControllerDocker
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Severity
MEDIUM6.5
Exploit prediction
EPSS 3%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%v < 19.03.1520.0.0 ≤ v < 20.10.3
Affected range stops below 19.03.15, so it looks safe — our inference, not a vendor statement
Affected range stops below 20.10.3, so it looks safe — our inference, not a vendor statement
11.0 ≤ v ≤ 11.60.3
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (8)
x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://docs.docker.com/engine/release-notes/#20103x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/moby/moby/commit/8d3179546e79065adefa67cc697c09d0ab137d30x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/moby/moby/releases/tag/v19.03.15x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/moby/moby/releases/tag/v20.10.3x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://github.com/moby/moby/security/advisories/GHSA-6fj5-m822-rqx8Vendor Advisoryx_refsource_GENTOOPatchThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202107-23x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20210226-0005/Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2021/dsa-4865CVSS
6.5MEDIUMGitHub_M
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-400CWE-754
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