{"id":"USN-8995-1","summary":"yaws vulnerabilities","details":"It was discovered that Yaws did not properly sanitize XML input in its\nWebDAV implementation. A remote attacker could possibly use this issue to\nperform XML external entity injection attacks. (CVE-2020-24379)\n\nIt was discovered that Yaws mishandled certain input when running CGI\nscripts. A remote attacker could possibly use this issue to execute\narbitrary commands. (CVE-2020-24916)","modified":"2026-11-04T03:43:15.181306880Z","published":"2026-11-03T17:16:06Z","related":["UBUNTU-CVE-2020-24379","UBUNTU-CVE-2020-24916"],"upstream":["CVE-2020-24379","CVE-2020-24916","UBUNTU-CVE-2020-24379","UBUNTU-CVE-2020-24916"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8995-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-24379"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-24916"}],"affected":[{"package":{"name":"yaws","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/yaws?arch=source&distro=esm-apps-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.2-1ubuntu0.1~esm1"}]}],"versions":["1.98-5","1.99-1","1.99-2","2.0.2-1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro","binaries":[{"binary_version":"2.0.2-1ubuntu0.1~esm1","binary_name":"erlang-yapp"},{"binary_version":"2.0.2-1ubuntu0.1~esm1","binary_name":"erlang-yaws"},{"binary_version":"2.0.2-1ubuntu0.1~esm1","binary_name":"yaws"},{"binary_version":"2.0.2-1ubuntu0.1~esm1","binary_name":"yaws-chat"},{"binary_version":"2.0.2-1ubuntu0.1~esm1","binary_name":"yaws-mail"},{"binary_name":"yaws-wiki","binary_version":"2.0.2-1ubuntu0.1~esm1"},{"binary_name":"yaws-yapp","binary_version":"2.0.2-1ubuntu0.1~esm1"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"id":"CVE-2020-24379","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-24916","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8995-1.json"}},{"package":{"name":"yaws","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/yaws?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.7+dfsg-1ubuntu0.1~esm1"}]}],"versions":["2.0.6+dfsg-1","2.0.6+dfsg-3","2.0.7+dfsg-1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"erlang-yapp","binary_version":"2.0.7+dfsg-1ubuntu0.1~esm1"},{"binary_version":"2.0.7+dfsg-1ubuntu0.1~esm1","binary_name":"erlang-yaws"},{"binary_name":"yaws","binary_version":"2.0.7+dfsg-1ubuntu0.1~esm1"},{"binary_name":"yaws-chat","binary_version":"2.0.7+dfsg-1ubuntu0.1~esm1"},{"binary_version":"2.0.7+dfsg-1ubuntu0.1~esm1","binary_name":"yaws-mail"},{"binary_name":"yaws-wiki","binary_version":"2.0.7+dfsg-1ubuntu0.1~esm1"},{"binary_name":"yaws-yapp","binary_version":"2.0.7+dfsg-1ubuntu0.1~esm1"}]},"database_specific":{"cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2020-24379"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2020-24916"}],"ecosystem":"Ubuntu:Pro:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8995-1.json"}}],"schema_version":"1.9.2"}