{"id":"UBUNTU-CVE-2021-41043","details":"Use after free in tcpslice triggers AddressSanitizer, no other confirmed impact.","modified":"2026-05-20T16:05:09.193611933Z","published":"2022-01-05T12:15:00Z","upstream":["CVE-2021-41043"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-41043"},{"type":"REPORT","url":"https://github.com/the-tcpdump-group/tcpslice/issues/11"},{"type":"REPORT","url":"https://github.com/the-tcpdump-group/tcpslice/commit/030859fce9c77417de657b9bb29c0f78c2d68f4a"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-41043"}],"affected":[{"package":{"name":"tcpslice","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/tcpslice?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2a3-4"],"ecosystem_specific":{"binaries":[{"binary_name":"tcpslice","binary_version":"1.2a3-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41043.json"}},{"package":{"name":"tcpslice","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/tcpslice?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2a3-4","1.2a3-4build1"],"ecosystem_specific":{"binaries":[{"binary_name":"tcpslice","binary_version":"1.2a3-4build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41043.json"}},{"package":{"name":"tcpslice","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/tcpslice?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2a3-4build1"],"ecosystem_specific":{"binaries":[{"binary_name":"tcpslice","binary_version":"1.2a3-4build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41043.json"}},{"package":{"name":"tcpslice","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/tcpslice?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3-2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.3-2","binary_name":"tcpslice"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41043.json"}},{"package":{"name":"tcpslice","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/tcpslice?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5-1","1.5-1build1","1.5-1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"tcpslice","binary_version":"1.5-1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41043.json"}},{"package":{"name":"tcpslice","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/tcpslice?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8-1"],"ecosystem_specific":{"binaries":[{"binary_name":"tcpslice","binary_version":"1.8-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41043.json"}},{"package":{"name":"tcpslice","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/tcpslice?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8-1","1.8-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.8-1build1","binary_name":"tcpslice"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41043.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}