{"id":"UBUNTU-CVE-2018-16420","details":"Several buffer overflows when handling responses from an ePass 2003 Card in decrypt_response in libopensc/card-epass2003.c in OpenSC before 0.19.0-rc1 could be used by attackers able to supply crafted smartcards to cause a denial of service (application crash) or possibly have unspecified other impact.","modified":"2025-09-08T16:45:00Z","published":"2018-09-04T00:29:00Z","upstream":["CVE-2018-16420"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-16420"},{"type":"REPORT","url":"https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/"},{"type":"REPORT","url":"https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-16420"}],"affected":[{"package":{"name":"opensc","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/opensc@0.15.0-1ubuntu1+esm3?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.15.0-1ubuntu1","0.15.0-1ubuntu1+esm1","0.15.0-1ubuntu1+esm2","0.15.0-1ubuntu1+esm3"],"ecosystem_specific":{"binaries":[{"binary_version":"0.15.0-1ubuntu1+esm3","binary_name":"opensc"},{"binary_version":"0.15.0-1ubuntu1+esm3","binary_name":"opensc-pkcs11"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-16420.json"}},{"package":{"name":"opensc","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/opensc@0.17.0-3ubuntu0.1~esm3?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.17.0-1","0.17.0-2","0.17.0-2build1","0.17.0-3","0.17.0-3ubuntu0.1~esm1","0.17.0-3ubuntu0.1~esm2","0.17.0-3ubuntu0.1~esm3"],"ecosystem_specific":{"binaries":[{"binary_version":"0.17.0-3ubuntu0.1~esm3","binary_name":"opensc"},{"binary_version":"0.17.0-3ubuntu0.1~esm3","binary_name":"opensc-pkcs11"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-16420.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}