{"id":"USN-7257-1","summary":"krb5 vulnerability","details":"Goldberg, Miro Haller, Nadia Heninger, Mike Milano, Dan Shumow, Marc\nStevens, and Adam Suhl discovered that Kerberos incorrectly authenticated\ncertain responses. An attacker able to intercept communications between a\nRADIUS client and server could possibly use this issue to forge responses,\nbypass authentication, and access network devices and services.\n\nThis update introduces support for the Message-Authenticator attribute in\nnon-EAP authentication methods for communications between Kerberos and a\nRADIUS server.\n","modified":"2026-04-27T17:43:20.777569Z","published":"2025-02-05T05:08:21Z","related":["UBUNTU-CVE-2024-3596"],"upstream":["CVE-2024-3596","UBUNTU-CVE-2024-3596"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7257-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-3596"}],"affected":[{"package":{"name":"krb5","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/krb5@1.12+dfsg-2ubuntu5.4+esm6?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.12+dfsg-2ubuntu5.4+esm6"}]}],"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","1.12+dfsg-2ubuntu5.4+esm4","1.12+dfsg-2ubuntu5.4+esm5"],"ecosystem_specific":{"binaries":[{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"krb5-admin-server"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"krb5-gss-samples"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"krb5-kdc"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"krb5-kdc-ldap"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"krb5-locales"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"krb5-multidev"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"krb5-otp"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"krb5-pkinit"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"krb5-user"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"libgssapi-krb5-2"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"libgssrpc4"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"libk5crypto3"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"libkadm5clnt-mit9"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"libkadm5srv-mit8"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"libkadm5srv-mit9"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"libkdb5-7"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"libkrad0"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"libkrb5-3"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm6","binary_name":"libkrb5support0"}],"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:14.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2024-3596"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7257-1.json"}},{"package":{"name":"krb5","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/krb5@1.13.2+dfsg-5ubuntu2.2+esm6?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+esm6"}]}],"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","1.13.2+dfsg-5ubuntu2.2+esm4","1.13.2+dfsg-5ubuntu2.2+esm5"],"ecosystem_specific":{"binaries":[{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"krb5-admin-server"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"krb5-gss-samples"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"krb5-k5tls"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"krb5-kdc"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"krb5-kdc-ldap"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"krb5-locales"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"krb5-multidev"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"krb5-otp"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"krb5-pkinit"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"krb5-user"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"libgssapi-krb5-2"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"libgssrpc4"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"libk5crypto3"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"libkadm5clnt-mit9"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"libkadm5srv-mit9"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"libkdb5-8"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"libkrad0"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"libkrb5-3"},{"binary_version":"1.13.2+dfsg-5ubuntu2.2+esm6","binary_name":"libkrb5support0"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2024-3596"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7257-1.json"}},{"package":{"name":"krb5","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/krb5@1.16-2ubuntu0.4+esm3?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16-2ubuntu0.4+esm3"}]}],"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","1.16-2ubuntu0.4+esm1","1.16-2ubuntu0.4+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"krb5-admin-server"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"krb5-gss-samples"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"krb5-k5tls"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"krb5-kdc"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"krb5-kdc-ldap"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"krb5-kpropd"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"krb5-locales"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"krb5-multidev"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"krb5-otp"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"krb5-pkinit"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"krb5-user"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"libgssapi-krb5-2"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"libgssrpc4"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"libk5crypto3"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"libkadm5clnt-mit11"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"libkadm5srv-mit11"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"libkdb5-9"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"libkrad0"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"libkrb5-3"},{"binary_version":"1.16-2ubuntu0.4+esm3","binary_name":"libkrb5support0"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2024-3596"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7257-1.json"}},{"package":{"name":"krb5","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/krb5@1.17-6ubuntu4.8?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.17-6ubuntu4.8"}]}],"versions":["1.17-6","1.17-6ubuntu3","1.17-6ubuntu4","1.17-6ubuntu4.1","1.17-6ubuntu4.2","1.17-6ubuntu4.3","1.17-6ubuntu4.4","1.17-6ubuntu4.6","1.17-6ubuntu4.7"],"ecosystem_specific":{"binaries":[{"binary_version":"1.17-6ubuntu4.8","binary_name":"krb5-admin-server"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"krb5-gss-samples"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"krb5-k5tls"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"krb5-kdc"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"krb5-kdc-ldap"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"krb5-kpropd"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"krb5-locales"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"krb5-multidev"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"krb5-otp"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"krb5-pkinit"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"krb5-user"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"libgssapi-krb5-2"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"libgssrpc4"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"libk5crypto3"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"libkadm5clnt-mit11"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"libkadm5srv-mit11"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"libkdb5-9"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"libkrad0"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"libkrb5-3"},{"binary_version":"1.17-6ubuntu4.8","binary_name":"libkrb5support0"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2024-3596"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7257-1.json"}},{"package":{"name":"krb5","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/krb5@1.19.2-2ubuntu0.5?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.19.2-2ubuntu0.5"}]}],"versions":["1.18.3-6","1.18.3-7","1.19.2-0ubuntu1","1.19.2-1","1.19.2-2","1.19.2-2ubuntu0.1","1.19.2-2ubuntu0.2","1.19.2-2ubuntu0.3","1.19.2-2ubuntu0.4"],"ecosystem_specific":{"binaries":[{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"krb5-admin-server"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"krb5-gss-samples"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"krb5-k5tls"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"krb5-kdc"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"krb5-kdc-ldap"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"krb5-kpropd"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"krb5-locales"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"krb5-multidev"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"krb5-otp"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"krb5-pkinit"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"krb5-user"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"libgssapi-krb5-2"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"libgssrpc4"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"libk5crypto3"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"libkadm5clnt-mit12"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"libkadm5srv-mit12"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"libkdb5-10"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"libkrad0"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"libkrb5-3"},{"binary_version":"1.19.2-2ubuntu0.5","binary_name":"libkrb5support0"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2024-3596"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7257-1.json"}},{"package":{"name":"krb5","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/krb5@1.20.1-6ubuntu2.3?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.1-6ubuntu2.3"}]}],"versions":["1.20.1-3ubuntu1","1.20.1-5build1","1.20.1-6ubuntu1","1.20.1-6ubuntu2","1.20.1-6ubuntu2.1","1.20.1-6ubuntu2.2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"krb5-admin-server"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"krb5-gss-samples"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"krb5-k5tls"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"krb5-kdc"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"krb5-kdc-ldap"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"krb5-kpropd"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"krb5-locales"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"krb5-multidev"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"krb5-otp"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"krb5-pkinit"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"krb5-user"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"libgssapi-krb5-2"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"libgssrpc4t64"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"libk5crypto3"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"libkadm5clnt-mit12"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"libkadm5srv-mit12"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"libkdb5-10t64"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"libkrad0"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"libkrb5-3"},{"binary_version":"1.20.1-6ubuntu2.3","binary_name":"libkrb5support0"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:24.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2024-3596"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7257-1.json"}}],"schema_version":"1.7.5"}