{"id":"UBUNTU-CVE-2019-20795","details":"iproute2 before 5.1.0 has a use-after-free in get_netnsid_from_name in ip/ipnetns.c. NOTE: security relevance may be limited to certain uses of setuid that, although not a default, are sometimes a configuration option offered to end users. Even when setuid is used, other factors (such as C library configuration) may block exploitability.","modified":"2026-02-04T03:19:07.789569Z","published":"2020-05-09T21:15:00Z","related":["USN-4357-1"],"upstream":["CVE-2019-20795"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-20795"},{"type":"REPORT","url":"https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=9bf2c538a0eb10d66e2365a655bf6c52f5ba3d10"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4357-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-20795"}],"affected":[{"package":{"name":"iproute2","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/iproute2@4.15.0-2ubuntu1.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-2ubuntu1.1"}]}],"versions":["4.9.0-1ubuntu2","4.9.0-1ubuntu3","4.14.1-0ubuntu2","4.14.1-0ubuntu3","4.15.0-2ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.15.0-2ubuntu1.1","binary_name":"iproute2"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-20795.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}