{"id":"UBUNTU-CVE-2020-36254","details":"scp.c in Dropbear before 2020.79 mishandles the filename of . or an empty filename, a related issue to CVE-2018-20685.","modified":"2025-12-08T07:59:20.127901Z","published":"2021-02-25T09:15:00Z","upstream":["CVE-2020-36254"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-36254"},{"type":"REPORT","url":"https://github.com/mkj/dropbear/commit/8f8a3dff705fad774a10864a2e3dbcfa9779ceff"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-36254"}],"affected":[{"package":{"name":"dropbear","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/dropbear@2016.72-1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2014.65-1ubuntu2","2015.68-1","2015.70-1","2015.71-1","2016.72-1"],"ecosystem_specific":{"binaries":[{"binary_name":"dropbear","binary_version":"2016.72-1"},{"binary_name":"dropbear-bin","binary_version":"2016.72-1"},{"binary_name":"dropbear-initramfs","binary_version":"2016.72-1"},{"binary_name":"dropbear-run","binary_version":"2016.72-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36254.json"}},{"package":{"name":"dropbear","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/dropbear@2017.75-3ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2017.75-2","2017.75-3build1","2017.75-3ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"dropbear","binary_version":"2017.75-3ubuntu0.1~esm1"},{"binary_name":"dropbear-bin","binary_version":"2017.75-3ubuntu0.1~esm1"},{"binary_name":"dropbear-initramfs","binary_version":"2017.75-3ubuntu0.1~esm1"},{"binary_name":"dropbear-run","binary_version":"2017.75-3ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36254.json"}},{"package":{"name":"dropbear","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/dropbear@2019.78-2ubuntu0.1~esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2019.78-2build1","2019.78-2ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"dropbear","binary_version":"2019.78-2ubuntu0.1~esm1"},{"binary_name":"dropbear-bin","binary_version":"2019.78-2ubuntu0.1~esm1"},{"binary_name":"dropbear-initramfs","binary_version":"2019.78-2ubuntu0.1~esm1"},{"binary_name":"dropbear-run","binary_version":"2019.78-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36254.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]}