{"id":"UBUNTU-CVE-2020-26154","details":"url.cpp in libproxy through 0.4.15 is prone to a buffer overflow when PAC is enabled, as demonstrated by a large PAC file that is delivered without a Content-length header.","modified":"2026-04-22T12:36:28.740835Z","published":"2020-09-30T18:15:00Z","related":["USN-4673-1"],"upstream":["CVE-2020-26154"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-26154"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4673-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=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":{"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_name":"libproxy1-plugin-gsettings","binary_version":"0.4.11-5ubuntu1.2"},{"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"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-26154.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":{"availability":"No subscription required","binaries":[{"binary_name":"libproxy-tools","binary_version":"0.4.15-1ubuntu0.2"},{"binary_version":"0.4.15-1ubuntu0.2","binary_name":"libproxy0.4-cil"},{"binary_name":"libproxy1-plugin-gsettings","binary_version":"0.4.15-1ubuntu0.2"},{"binary_name":"libproxy1-plugin-kconfig","binary_version":"0.4.15-1ubuntu0.2"},{"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"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-26154.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":{"binaries":[{"binary_name":"libproxy-tools","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_version":"0.4.15-10ubuntu1.2"},{"binary_name":"libproxy1-plugin-kconfig","binary_version":"0.4.15-10ubuntu1.2"},{"binary_version":"0.4.15-10ubuntu1.2","binary_name":"libproxy1-plugin-mozjs"},{"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"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-26154.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}