{"id":"UBUNTU-CVE-2020-26570","details":"The Oberthur smart card software driver in OpenSC before 0.21.0-rc1 has a heap-based buffer overflow in sc_oberthur_read_file.","modified":"2026-02-04T04:00:25.529910Z","published":"2020-10-06T02:15:00Z","related":["USN-5281-1"],"upstream":["CVE-2020-26570"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-26570"},{"type":"REPORT","url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24316"},{"type":"REPORT","url":"https://github.com/OpenSC/OpenSC/commit/6903aebfddc466d966c7b865fae34572bf3ed23e"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5281-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-26570"}],"affected":[{"package":{"name":"opensc","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/opensc@0.15.0-1ubuntu1+esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.15.0-1ubuntu1+esm1"}]}],"versions":["0.15.0-1ubuntu1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"opensc","binary_version":"0.15.0-1ubuntu1+esm1"},{"binary_name":"opensc-pkcs11","binary_version":"0.15.0-1ubuntu1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-26570.json"}},{"package":{"name":"opensc","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/opensc@0.17.0-3ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.17.0-3ubuntu0.1~esm1"}]}],"versions":["0.17.0-1","0.17.0-2","0.17.0-2build1","0.17.0-3"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"opensc","binary_version":"0.17.0-3ubuntu0.1~esm1"},{"binary_version":"0.17.0-3ubuntu0.1~esm1","binary_name":"opensc-pkcs11"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-26570.json"}},{"package":{"name":"opensc","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/opensc@0.20.0-3ubuntu0.1~esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.20.0-3ubuntu0.1~esm1"}]}],"versions":["0.19.0-2","0.20.0-1","0.20.0-2","0.20.0-3"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"0.20.0-3ubuntu0.1~esm1","binary_name":"opensc"},{"binary_name":"opensc-pkcs11","binary_version":"0.20.0-3ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-26570.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}