{"id":"UBUNTU-CVE-2021-20211","details":"A flaw was found in Privoxy in versions before 3.0.29. Memory leak when client tags are active can cause a system crash.","modified":"2026-01-30T01:56:54.816873Z","published":"2021-02-03T00:00:00Z","related":["USN-4886-1"],"upstream":["CVE-2021-20211"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-20211"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2021/02/03/3"},{"type":"REPORT","url":"https://www.privoxy.org/gitweb/?p=privoxy.git;a=commit;h=245e1cf32"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4886-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-20211"}],"affected":[{"package":{"name":"privoxy","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/privoxy@3.0.26-5ubuntu0.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.26-5ubuntu0.1"}]}],"versions":["3.0.26-3","3.0.26-4","3.0.26-5"],"ecosystem_specific":{"binaries":[{"binary_version":"3.0.26-5ubuntu0.1","binary_name":"privoxy"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-20211.json"}},{"package":{"name":"privoxy","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/privoxy@3.0.28-2ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.28-2ubuntu0.1"}]}],"versions":["3.0.28-2"],"ecosystem_specific":{"binaries":[{"binary_version":"3.0.28-2ubuntu0.1","binary_name":"privoxy"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-20211.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}