{"id":"USN-4673-1","summary":"libproxy vulnerability","details":"Li Fei discovered that libproxy incorrectly handled certain PAC files.\nAn attacker could possibly use this issue to cause a crash or execute arbitrary\ncode.\n","modified":"2026-04-22T10:21:57.916773Z","published":"2021-01-04T12:38:58Z","related":["UBUNTU-CVE-2020-26154"],"upstream":["CVE-2020-26154","UBUNTU-CVE-2020-26154"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4673-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-26154"}],"affected":[{"package":{"name":"libproxy","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libproxy@0.4.11-5ubuntu1.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.11-5ubuntu1.2"}]}],"versions":["0.4.11-4ubuntu3~gcc5.3","0.4.11-5ubuntu1","0.4.11-5ubuntu1.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libproxy-tools","binary_version":"0.4.11-5ubuntu1.2"},{"binary_name":"libproxy0.4-cil","binary_version":"0.4.11-5ubuntu1.2"},{"binary_version":"0.4.11-5ubuntu1.2","binary_name":"libproxy1-plugin-gsettings"},{"binary_name":"libproxy1-plugin-kconfig","binary_version":"0.4.11-5ubuntu1.2"},{"binary_name":"libproxy1-plugin-networkmanager","binary_version":"0.4.11-5ubuntu1.2"},{"binary_name":"libproxy1-plugin-webkit","binary_version":"0.4.11-5ubuntu1.2"},{"binary_name":"libproxy1v5","binary_version":"0.4.11-5ubuntu1.2"},{"binary_name":"python-libproxy","binary_version":"0.4.11-5ubuntu1.2"}]},"database_specific":{"cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2020-26154"}],"ecosystem":"Ubuntu:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4673-1.json"}},{"package":{"name":"libproxy","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libproxy@0.4.15-1ubuntu0.2?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.15-1ubuntu0.2"}]}],"versions":["0.4.14-3","0.4.15-0ubuntu1","0.4.15-1","0.4.15-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libproxy-tools","binary_version":"0.4.15-1ubuntu0.2"},{"binary_name":"libproxy0.4-cil","binary_version":"0.4.15-1ubuntu0.2"},{"binary_name":"libproxy1-plugin-gsettings","binary_version":"0.4.15-1ubuntu0.2"},{"binary_version":"0.4.15-1ubuntu0.2","binary_name":"libproxy1-plugin-kconfig"},{"binary_name":"libproxy1-plugin-networkmanager","binary_version":"0.4.15-1ubuntu0.2"},{"binary_name":"libproxy1-plugin-webkit","binary_version":"0.4.15-1ubuntu0.2"},{"binary_name":"libproxy1v5","binary_version":"0.4.15-1ubuntu0.2"},{"binary_name":"python-libproxy","binary_version":"0.4.15-1ubuntu0.2"},{"binary_name":"python3-libproxy","binary_version":"0.4.15-1ubuntu0.2"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2020-26154","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"}]}],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4673-1.json"}},{"package":{"name":"libproxy","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libproxy@0.4.15-10ubuntu1.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.15-10ubuntu1.2"}]}],"versions":["0.4.15-7","0.4.15-9","0.4.15-9build1","0.4.15-9ubuntu1","0.4.15-10","0.4.15-10ubuntu1","0.4.15-10ubuntu1.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libproxy-tools","binary_version":"0.4.15-10ubuntu1.2"},{"binary_version":"0.4.15-10ubuntu1.2","binary_name":"libproxy0.4-cil"},{"binary_version":"0.4.15-10ubuntu1.2","binary_name":"libproxy1-plugin-gsettings"},{"binary_name":"libproxy1-plugin-kconfig","binary_version":"0.4.15-10ubuntu1.2"},{"binary_name":"libproxy1-plugin-mozjs","binary_version":"0.4.15-10ubuntu1.2"},{"binary_name":"libproxy1-plugin-networkmanager","binary_version":"0.4.15-10ubuntu1.2"},{"binary_name":"libproxy1-plugin-webkit","binary_version":"0.4.15-10ubuntu1.2"},{"binary_name":"libproxy1v5","binary_version":"0.4.15-10ubuntu1.2"},{"binary_name":"python3-libproxy","binary_version":"0.4.15-10ubuntu1.2"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2020-26154","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"}]}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4673-1.json"}}],"schema_version":"1.7.5"}