{"id":"UBUNTU-CVE-2016-20048","details":"iSelect 1.4.0-2+b1 contains a local buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an oversized value to the -k/--key parameter. Attackers can craft a malicious argument containing a NOP sled, shellcode, and return address to overflow a 1024-byte stack buffer and gain code execution with user privileges.","modified":"2026-05-20T16:03:19.065806801Z","published":"2026-03-28T12:16:00Z","upstream":["CVE-2016-20048"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-20048"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-20048"},{"type":"REPORT","url":"https://www.exploit-db.com/exploits/41076"},{"type":"REPORT","url":"http://www.ossp.org/pkg/tool/iselect/"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/iselect-2-b1-local-buffer-overflow-via-key-parameter"}],"affected":[{"package":{"name":"iselect","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/iselect?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.0-2","1.4.0-2build1"],"ecosystem_specific":{"binaries":[{"binary_name":"iselect","binary_version":"1.4.0-2build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-20048.json"}},{"package":{"name":"iselect","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/iselect?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.0-2build1","1.4.0-3"],"ecosystem_specific":{"binaries":[{"binary_name":"iselect","binary_version":"1.4.0-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-20048.json"}},{"package":{"name":"iselect","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/iselect?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.0-3build1"],"ecosystem_specific":{"binaries":[{"binary_name":"iselect","binary_version":"1.4.0-3build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-20048.json"}},{"package":{"name":"iselect","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/iselect?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.0-4"],"ecosystem_specific":{"binaries":[{"binary_version":"1.4.0-4","binary_name":"iselect"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-20048.json"}},{"package":{"name":"iselect","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/iselect?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.0-4"],"ecosystem_specific":{"binaries":[{"binary_name":"iselect","binary_version":"1.4.0-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-20048.json"}},{"package":{"name":"iselect","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/iselect?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"iselect","binary_version":"1.4.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-20048.json"}},{"package":{"name":"iselect","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/iselect?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.2-1","1.4.2-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"iselect","binary_version":"1.4.2-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-20048.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}