{"id":"USN-6467-1","summary":"krb5 vulnerability","details":"Robert Morris discovered that Kerberos did not properly handle memory\naccess when processing RPC data through kadmind, which could lead to the\nfreeing of uninitialized memory. An authenticated remote attacker could\npossibly use this issue to cause kadmind to crash, resulting in a denial\nof service.\n","modified":"2026-04-22T11:09:45.815066Z","published":"2023-11-01T11:26:31Z","related":["UBUNTU-CVE-2023-36054"],"upstream":["CVE-2023-36054","UBUNTU-CVE-2023-36054"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6467-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-36054"}],"affected":[{"package":{"name":"krb5","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/krb5@1.12+dfsg-2ubuntu5.4+esm4?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.12+dfsg-2ubuntu5.4+esm4"}]}],"versions":["1.10.1+dfsg-6.1ubuntu1","1.11.3+dfsg-3ubuntu2","1.12+dfsg-2ubuntu1","1.12+dfsg-2ubuntu2","1.12+dfsg-2ubuntu3","1.12+dfsg-2ubuntu4","1.12+dfsg-2ubuntu4.2","1.12+dfsg-2ubuntu5","1.12+dfsg-2ubuntu5.1","1.12+dfsg-2ubuntu5.2","1.12+dfsg-2ubuntu5.3","1.12+dfsg-2ubuntu5.4","1.12+dfsg-2ubuntu5.4+esm1","1.12+dfsg-2ubuntu5.4+esm2","1.12+dfsg-2ubuntu5.4+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"krb5-admin-server","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"krb5-gss-samples","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"krb5-kdc","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"krb5-kdc-ldap","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"krb5-locales","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"krb5-multidev","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"krb5-otp","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"krb5-pkinit","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"krb5-user","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"libgssapi-krb5-2","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"libgssrpc4","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"libk5crypto3","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"libkadm5clnt-mit9","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"libkadm5srv-mit8","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"libkadm5srv-mit9","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"libkdb5-7","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"libkrad0","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"libkrb5-3","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"},{"binary_name":"libkrb5support0","binary_version":"1.12+dfsg-2ubuntu5.4+esm4"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2023-36054","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"}]}],"ecosystem":"Ubuntu:Pro:14.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6467-1.json"}},{"package":{"name":"krb5","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/krb5@1.13.2+dfsg-5ubuntu2.2+esm4?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+esm4"}]}],"versions":["1.13.2+dfsg-2","1.13.2+dfsg-3","1.13.2+dfsg-4","1.13.2+dfsg-5","1.13.2+dfsg-5ubuntu1","1.13.2+dfsg-5ubuntu2","1.13.2+dfsg-5ubuntu2.1","1.13.2+dfsg-5ubuntu2.1+esm1","1.13.2+dfsg-5ubuntu2.2","1.13.2+dfsg-5ubuntu2.2+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"krb5-admin-server","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"krb5-gss-samples","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"krb5-k5tls","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"krb5-kdc","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"krb5-kdc-ldap","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"krb5-locales","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"krb5-multidev","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"krb5-otp","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"krb5-pkinit","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"krb5-user","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"libgssapi-krb5-2","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"libgssrpc4","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"libk5crypto3","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"libkadm5clnt-mit9","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"libkadm5srv-mit9","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"libkdb5-8","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"libkrad0","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"libkrb5-3","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"},{"binary_name":"libkrb5support0","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm4"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2023-36054","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"}]}],"ecosystem":"Ubuntu:Pro:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6467-1.json"}},{"package":{"name":"krb5","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/krb5@1.16-2ubuntu0.4+esm1?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16-2ubuntu0.4+esm1"}]}],"versions":["1.15.1-2","1.16-2","1.16-2build1","1.16-2ubuntu0.1","1.16-2ubuntu0.1+esm1","1.16-2ubuntu0.2","1.16-2ubuntu0.3","1.16-2ubuntu0.4"],"ecosystem_specific":{"binaries":[{"binary_name":"krb5-admin-server","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"krb5-gss-samples","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"krb5-k5tls","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"krb5-kdc","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"krb5-kdc-ldap","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"krb5-kpropd","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"krb5-locales","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"krb5-multidev","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"krb5-otp","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"krb5-pkinit","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"krb5-user","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"libgssapi-krb5-2","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"libgssrpc4","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"libk5crypto3","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"libkadm5clnt-mit11","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"libkadm5srv-mit11","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"libkdb5-9","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"libkrad0","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"libkrb5-3","binary_version":"1.16-2ubuntu0.4+esm1"},{"binary_name":"libkrb5support0","binary_version":"1.16-2ubuntu0.4+esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2023-36054","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"}]}],"ecosystem":"Ubuntu:Pro:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6467-1.json"}}],"schema_version":"1.7.5"}