{"id":"USN-5959-1","summary":"krb5 vulnerabilities","details":"It was discovered that Kerberos incorrectly handled memory when processing\nKDC data, which could lead to a NULL pointer dereference. An attacker could\npossibly use this issue to cause a denial of service or have other\nunspecified impacts. (CVE-2021-36222, CVE-2021-37750)\n","modified":"2026-02-10T04:43:01Z","published":"2023-03-16T07:06:07Z","related":["UBUNTU-CVE-2021-36222","UBUNTU-CVE-2021-37750"],"upstream":["CVE-2021-36222","CVE-2021-37750","UBUNTU-CVE-2021-36222","UBUNTU-CVE-2021-37750"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5959-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-36222"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-37750"}],"affected":[{"package":{"name":"krb5","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/krb5@1.16-2ubuntu0.4?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16-2ubuntu0.4"}]}],"versions":["1.15.1-2","1.16-2","1.16-2build1","1.16-2ubuntu0.1","1.16-2ubuntu0.2","1.16-2ubuntu0.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.16-2ubuntu0.4","binary_name":"krb5-admin-server"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"krb5-gss-samples"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"krb5-k5tls"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"krb5-kdc"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"krb5-kdc-ldap"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"krb5-kpropd"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"krb5-locales"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"krb5-multidev"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"krb5-otp"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"krb5-pkinit"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"krb5-user"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"libgssapi-krb5-2"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"libgssrpc4"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"libk5crypto3"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"libkadm5clnt-mit11"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"libkadm5srv-mit11"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"libkdb5-9"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"libkrad-dev"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"libkrad0"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"libkrb5-3"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"libkrb5-dev"},{"binary_version":"1.16-2ubuntu0.4","binary_name":"libkrb5support0"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-36222"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-37750"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5959-1.json"}},{"package":{"name":"krb5","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/krb5@1.17-6ubuntu4.3?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.17-6ubuntu4.3"}]}],"versions":["1.17-6","1.17-6ubuntu3","1.17-6ubuntu4","1.17-6ubuntu4.1","1.17-6ubuntu4.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.17-6ubuntu4.3","binary_name":"krb5-admin-server"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"krb5-gss-samples"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"krb5-k5tls"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"krb5-kdc"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"krb5-kdc-ldap"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"krb5-kpropd"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"krb5-locales"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"krb5-multidev"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"krb5-otp"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"krb5-pkinit"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"krb5-user"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"libgssapi-krb5-2"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"libgssrpc4"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"libk5crypto3"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"libkadm5clnt-mit11"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"libkadm5srv-mit11"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"libkdb5-9"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"libkrad-dev"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"libkrad0"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"libkrb5-3"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"libkrb5-dev"},{"binary_version":"1.17-6ubuntu4.3","binary_name":"libkrb5support0"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-36222"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-37750"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5959-1.json"}}],"schema_version":"1.7.3"}