A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses.
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 security@docker.com.
Last updated 24 July 2024
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