CVE-2024-32473

CVSS 3.1 Score 4.7 of 10 (medium)

Details

Published Apr 18, 2024
Updated: Apr 19, 2024
CWE ID 668

Summary

CVE-2024-32473 is a vulnerability in Moby, an open-source container framework used in Docker Engine and Docker Desktop. In version 26.0.0, IPv6 is not disabled on network interfaces, even when the `--ipv6=false` flag is used. This allows containers with `ipvlan` or `macvlan` interfaces to have direct access to the host machine's network link, increasing the attack surface of IPv4-only networks. The vulnerability can lead to unauthorized communication with other hosts on the local network and potential SLAAC-assigned addresses for containers. To mitigate this issue, users should update to version 26.0.2 and completely disable IPv6 in containers using `--sysctl=net.ipv6.conf.all.disable_ipv6=1` during container creation. The vulnerability has a base severity rating of MEDIUM and a CVSS score of 4.7, with high confidentiality impact but no integrity or availability impact.

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