{"id":"UBUNTU-CVE-2017-11747","details":"main.c in Tinyproxy 1.8.4 and earlier creates a /run/tinyproxy/tinyproxy.pid file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for tinyproxy.pid modification before a root script executes a \"kill `cat /run/tinyproxy/tinyproxy.pid`\" command.","modified":"2026-01-30T01:03:36.608514Z","published":"2017-07-30T16:29:00Z","related":["USN-4808-1"],"upstream":["CVE-2017-11747"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-11747"},{"type":"REPORT","url":"https://github.com/tinyproxy/tinyproxy/issues/106"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4808-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-11747"}],"affected":[{"package":{"name":"tinyproxy","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/tinyproxy@1.8.3-3ubuntu14.04.1~esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.3-3ubuntu14.04.1~esm1"}]}],"versions":["1.8.3-3ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"tinyproxy","binary_version":"1.8.3-3ubuntu14.04.1~esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-11747.json"}},{"package":{"name":"tinyproxy","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/tinyproxy@1.8.3-3ubuntu16.04.1~esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.3-3ubuntu16.04.1~esm1"}]}],"versions":["1.8.3-3ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"tinyproxy","binary_version":"1.8.3-3ubuntu16.04.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-11747.json"}},{"package":{"name":"tinyproxy","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/tinyproxy@1.8.4-5ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.4-5ubuntu0.1~esm1"}]}],"versions":["1.8.4-2","1.8.4-3","1.8.4-5"],"ecosystem_specific":{"binaries":[{"binary_name":"tinyproxy","binary_version":"1.8.4-5ubuntu0.1~esm1"},{"binary_name":"tinyproxy-bin","binary_version":"1.8.4-5ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-11747.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}