{"id":"USN-6242-2","summary":"openssh vulnerability","details":"USN-6242-1 fixed a vulnerability in OpenSSH. This update provides\nthe corresponding update for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS,\nand Ubuntu 18.04 LTS.\n\nOriginal advisory details:\n\n It was discovered that OpenSSH incorrectly handled loading certain PKCS#11\n providers. If a user forwarded their ssh-agent to an untrusted system, a\n remote attacker could possibly use this issue to load arbitrary libraries\n from the user's system and execute arbitrary code.\n","modified":"2026-04-27T16:46:10.470177Z","published":"2023-07-31T17:40:15Z","related":["UBUNTU-CVE-2023-38408"],"upstream":["CVE-2023-38408","UBUNTU-CVE-2023-38408"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6242-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-38408"}],"affected":[{"package":{"name":"openssh","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/openssh@1:6.6p1-2ubuntu2.13+esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:6.6p1-2ubuntu2.13+esm1"}]}],"versions":["1:6.2p2-6","1:6.2p2-6ubuntu1","1:6.4p1-1","1:6.4p1-2","1:6.5p1-1","1:6.5p1-2","1:6.5p1-3","1:6.5p1-4","1:6.5p1-6","1:6.6p1-1","1:6.6p1-2","1:6.6p1-2ubuntu1","1:6.6p1-2ubuntu2","1:6.6p1-2ubuntu2.2","1:6.6p1-2ubuntu2.3","1:6.6p1-2ubuntu2.4","1:6.6p1-2ubuntu2.6","1:6.6p1-2ubuntu2.7","1:6.6p1-2ubuntu2.8","1:6.6p1-2ubuntu2.10","1:6.6p1-2ubuntu2.11","1:6.6p1-2ubuntu2.12","1:6.6p1-2ubuntu2.13"],"ecosystem_specific":{"binaries":[{"binary_name":"openssh-client","binary_version":"1:6.6p1-2ubuntu2.13+esm1"},{"binary_name":"openssh-server","binary_version":"1:6.6p1-2ubuntu2.13+esm1"},{"binary_name":"openssh-sftp-server","binary_version":"1:6.6p1-2ubuntu2.13+esm1"},{"binary_name":"ssh","binary_version":"1:6.6p1-2ubuntu2.13+esm1"},{"binary_name":"ssh-askpass-gnome","binary_version":"1:6.6p1-2ubuntu2.13+esm1"},{"binary_name":"ssh-krb5","binary_version":"1:6.6p1-2ubuntu2.13+esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6242-2.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-38408"}],"ecosystem":"Ubuntu:Pro:14.04:LTS"}}},{"package":{"name":"openssh","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/openssh@1:7.2p2-4ubuntu2.10+esm3?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:7.2p2-4ubuntu2.10+esm3"}]}],"versions":["1:6.9p1-2","1:6.9p1-3","1:7.1p1-1","1:7.1p1-3","1:7.1p1-4","1:7.1p1-6","1:7.1p2-1","1:7.1p2-2","1:7.2p1-1","1:7.2p2-1","1:7.2p2-2","1:7.2p2-3","1:7.2p2-4","1:7.2p2-4ubuntu1","1:7.2p2-4ubuntu2.1","1:7.2p2-4ubuntu2.2","1:7.2p2-4ubuntu2.4","1:7.2p2-4ubuntu2.5","1:7.2p2-4ubuntu2.6","1:7.2p2-4ubuntu2.7","1:7.2p2-4ubuntu2.8","1:7.2p2-4ubuntu2.10","1:7.2p2-4ubuntu2.10+esm1","1:7.2p2-4ubuntu2.10+esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"openssh-client","binary_version":"1:7.2p2-4ubuntu2.10+esm3"},{"binary_name":"openssh-client-ssh1","binary_version":"1:7.2p2-4ubuntu2.10+esm3"},{"binary_name":"openssh-server","binary_version":"1:7.2p2-4ubuntu2.10+esm3"},{"binary_name":"openssh-sftp-server","binary_version":"1:7.2p2-4ubuntu2.10+esm3"},{"binary_name":"ssh","binary_version":"1:7.2p2-4ubuntu2.10+esm3"},{"binary_name":"ssh-askpass-gnome","binary_version":"1:7.2p2-4ubuntu2.10+esm3"},{"binary_name":"ssh-krb5","binary_version":"1:7.2p2-4ubuntu2.10+esm3"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6242-2.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-38408"}],"ecosystem":"Ubuntu:Pro:16.04:LTS"}}},{"package":{"name":"openssh","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/openssh@1:7.6p1-4ubuntu0.7+esm1?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:7.6p1-4ubuntu0.7+esm1"}]}],"versions":["1:7.5p1-10","1:7.6p1-4","1:7.6p1-4ubuntu0.1","1:7.6p1-4ubuntu0.2","1:7.6p1-4ubuntu0.3","1:7.6p1-4ubuntu0.5","1:7.6p1-4ubuntu0.6","1:7.6p1-4ubuntu0.7"],"ecosystem_specific":{"binaries":[{"binary_name":"openssh-client","binary_version":"1:7.6p1-4ubuntu0.7+esm1"},{"binary_name":"openssh-server","binary_version":"1:7.6p1-4ubuntu0.7+esm1"},{"binary_name":"openssh-sftp-server","binary_version":"1:7.6p1-4ubuntu0.7+esm1"},{"binary_name":"ssh","binary_version":"1:7.6p1-4ubuntu0.7+esm1"},{"binary_name":"ssh-askpass-gnome","binary_version":"1:7.6p1-4ubuntu0.7+esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6242-2.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-38408"}],"ecosystem":"Ubuntu:Pro:18.04:LTS"}}}],"schema_version":"1.7.5"}