{"id":"UBUNTU-CVE-2021-46848","details":"GNU Libtasn1 before 4.19.0 has an ETYPE_OK off-by-one array size check that affects asn1_encode_simple_der.","modified":"2026-04-22T15:03:43.676459Z","published":"2022-10-25T00:00:00Z","related":["USN-5707-1","USN-7954-1","USN-7954-2"],"upstream":["CVE-2021-46848"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-46848"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5707-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-46848"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7954-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7954-2"}],"affected":[{"package":{"name":"libtasn1-6","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/libtasn1-6@3.4-3ubuntu0.6+esm1?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4-3ubuntu0.6+esm1"}]}],"versions":["3.3-2","3.4-2","3.4-3","3.4-3ubuntu0.1","3.4-3ubuntu0.2","3.4-3ubuntu0.3","3.4-3ubuntu0.4","3.4-3ubuntu0.5","3.4-3ubuntu0.6"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro","binaries":[{"binary_name":"libtasn1-3-bin","binary_version":"3.4-3ubuntu0.6+esm1"},{"binary_name":"libtasn1-6","binary_version":"3.4-3ubuntu0.6+esm1"},{"binary_name":"libtasn1-bin","binary_version":"3.4-3ubuntu0.6+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-46848.json"}},{"package":{"name":"libtasn1-6","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/libtasn1-6@4.7-3ubuntu0.16.04.3+esm3?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7-3ubuntu0.16.04.3+esm3"}]}],"versions":["4.5-2","4.7-2","4.7-3","4.7-3ubuntu0.16.04.1","4.7-3ubuntu0.16.04.2","4.7-3ubuntu0.16.04.3","4.7-3ubuntu0.16.04.3+esm2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"libtasn1-3-bin","binary_version":"4.7-3ubuntu0.16.04.3+esm3"},{"binary_name":"libtasn1-6","binary_version":"4.7-3ubuntu0.16.04.3+esm3"},{"binary_name":"libtasn1-bin","binary_version":"4.7-3ubuntu0.16.04.3+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-46848.json"}},{"package":{"name":"libtasn1-6","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/libtasn1-6@4.13-2ubuntu0.1~esm1?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.13-2ubuntu0.1~esm1"}]}],"versions":["4.12-2.1","4.12-3","4.13-2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"libtasn1-6","binary_version":"4.13-2ubuntu0.1~esm1"},{"binary_name":"libtasn1-bin","binary_version":"4.13-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-46848.json"}},{"package":{"name":"libtasn1-6","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/libtasn1-6@4.16.0-2ubuntu0.1+esm1?arch=source&distro=esm-infra/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.16.0-2ubuntu0.1+esm1"}]}],"versions":["4.14-3","4.15.0-2","4.16.0-2","4.16.0-2ubuntu0.1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"libtasn1-6","binary_version":"4.16.0-2ubuntu0.1+esm1"},{"binary_name":"libtasn1-bin","binary_version":"4.16.0-2ubuntu0.1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-46848.json"}},{"package":{"name":"libtasn1-6","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libtasn1-6@4.18.0-4ubuntu0.2?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-4ubuntu0.2"}]}],"versions":["4.16.0-2","4.16.0-2build1","4.17.0-2","4.18.0-3","4.18.0-4","4.18.0-4build1","4.18.0-4ubuntu0.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libtasn1-6","binary_version":"4.18.0-4ubuntu0.2"},{"binary_name":"libtasn1-bin","binary_version":"4.18.0-4ubuntu0.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-46848.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}