runc through 1.0.0-rc8, as used in Docker through 19.03.2-ce and other products, allows AppArmor restriction bypass because libcontainer/rootfs_linux.go incorrectly checks mount targets, and thus a malicious Docker image can mount over a /proc directory.
{ "nvd_published_at": "2019-09-25T18:15:00Z", "cwe_ids": [ "CWE-863" ], "severity": "HIGH", "github_reviewed": true, "github_reviewed_at": "2022-02-22T15:38:08Z" }