{"id":"UBUNTU-CVE-2021-20199","details":"Rootless containers run with Podman, receive all traffic with a source IP address of 127.0.0.1 (including from remote hosts). This impacts containerized applications that trust localhost (127.0.01) connections by default and do not require authentication. This issue affects Podman 1.8.0 onwards.","modified":"2026-03-25T18:26:53.830946Z","published":"2021-02-02T19:15:00Z","upstream":["CVE-2021-20199"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-20199"},{"type":"REPORT","url":"https://github.com/containers/podman/issues/5138"},{"type":"REPORT","url":"https://github.com/containers/podman/pull/9052"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-20199"}],"affected":[{"package":{"name":"libpod","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/libpod@3.4.4+ds1-1ubuntu1.22.04.3+esm3?arch=source&distro=esm-apps/jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.1+ds1-2ubuntu3","3.4.4+ds1-1ubuntu1","3.4.4+ds1-1ubuntu1.22.04.1","3.4.4+ds1-1ubuntu1.22.04.2","3.4.4+ds1-1ubuntu1.22.04.3","3.4.4+ds1-1ubuntu1.22.04.3+esm1","3.4.4+ds1-1ubuntu1.22.04.3+esm2","3.4.4+ds1-1ubuntu1.22.04.3+esm3"],"ecosystem_specific":{"binaries":[{"binary_version":"3.4.4+ds1-1ubuntu1.22.04.3+esm3","binary_name":"podman"},{"binary_version":"3.4.4+ds1-1ubuntu1.22.04.3+esm3","binary_name":"podman-docker"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-20199.json"}},{"package":{"name":"libpod","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/libpod@4.9.3+ds1-1ubuntu0.2+esm3?arch=source&distro=esm-apps/noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.1+ds1-8","4.7.2+ds1-2","4.7.2+ds1-2build1","4.8.3+ds1-2","4.9.0+ds1-2","4.9.3+ds1-1","4.9.3+ds1-1build1","4.9.3+ds1-1build2","4.9.3+ds1-1ubuntu0.1","4.9.3+ds1-1ubuntu0.2","4.9.3+ds1-1ubuntu0.2+esm1","4.9.3+ds1-1ubuntu0.2+esm2","4.9.3+ds1-1ubuntu0.2+esm3"],"ecosystem_specific":{"binaries":[{"binary_version":"4.9.3+ds1-1ubuntu0.2+esm3","binary_name":"podman"},{"binary_version":"4.9.3+ds1-1ubuntu0.2+esm3","binary_name":"podman-docker"},{"binary_version":"4.9.3+ds1-1ubuntu0.2+esm3","binary_name":"podman-remote"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-20199.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}