CVE-2021-21285: Debian Linux

Medium severity, CVSS 6.5. EPSS: 3.3% chance of exploitation in the next 30 days.

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 products

• Debian Debian Linux: version 10.0 only
• Docker Docker: before 19.03.15 (fixed in 19.03.15); from 20.0.0, before 20.10.3 (fixed in 20.10.3)
• Netapp E-Series Santricity OS Controller: from 11.0, up to and including 11.60.3

Published 2021-02-02. Last modified 2026-06-17.