{"id":"UBUNTU-CVE-2017-15088","details":"plugins/preauth/pkinit/pkinit_crypto_openssl.c in MIT Kerberos 5 (aka krb5) through 1.15.2 mishandles Distinguished Name (DN) fields, which allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow and application crash) in situations involving untrusted X.509 data, related to the get_matching_data and X509_NAME_oneline_ex functions. NOTE: this has security relevance only in use cases outside of the MIT Kerberos distribution, e.g., the use of get_matching_data in KDC certauth plugin code that is specific to Red Hat.","modified":"2026-04-22T11:16:52.731469Z","published":"2017-11-23T17:29:00Z","upstream":["CVE-2017-15088"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-15088"},{"type":"REPORT","url":"https://github.com/krb5/krb5/pull/707"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-15088"}],"affected":[{"package":{"name":"krb5","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/krb5@1.12+dfsg-2ubuntu5.4+esm7?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"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","1.12+dfsg-2ubuntu5.4+esm6","1.12+dfsg-2ubuntu5.4+esm7"],"ecosystem_specific":{"binaries":[{"binary_name":"krb5-admin-server","binary_version":"1.12+dfsg-2ubuntu5.4+esm7"},{"binary_name":"krb5-gss-samples","binary_version":"1.12+dfsg-2ubuntu5.4+esm7"},{"binary_name":"krb5-kdc","binary_version":"1.12+dfsg-2ubuntu5.4+esm7"},{"binary_name":"krb5-kdc-ldap","binary_version":"1.12+dfsg-2ubuntu5.4+esm7"},{"binary_name":"krb5-locales","binary_version":"1.12+dfsg-2ubuntu5.4+esm7"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm7","binary_name":"krb5-multidev"},{"binary_name":"krb5-otp","binary_version":"1.12+dfsg-2ubuntu5.4+esm7"},{"binary_name":"krb5-pkinit","binary_version":"1.12+dfsg-2ubuntu5.4+esm7"},{"binary_name":"krb5-user","binary_version":"1.12+dfsg-2ubuntu5.4+esm7"},{"binary_name":"libgssapi-krb5-2","binary_version":"1.12+dfsg-2ubuntu5.4+esm7"},{"binary_name":"libgssrpc4","binary_version":"1.12+dfsg-2ubuntu5.4+esm7"},{"binary_name":"libk5crypto3","binary_version":"1.12+dfsg-2ubuntu5.4+esm7"},{"binary_name":"libkadm5clnt-mit9","binary_version":"1.12+dfsg-2ubuntu5.4+esm7"},{"binary_name":"libkadm5srv-mit8","binary_version":"1.12+dfsg-2ubuntu5.4+esm7"},{"binary_version":"1.12+dfsg-2ubuntu5.4+esm7","binary_name":"libkadm5srv-mit9"},{"binary_name":"libkdb5-7","binary_version":"1.12+dfsg-2ubuntu5.4+esm7"},{"binary_name":"libkrad0","binary_version":"1.12+dfsg-2ubuntu5.4+esm7"},{"binary_name":"libkrb5-3","binary_version":"1.12+dfsg-2ubuntu5.4+esm7"},{"binary_name":"libkrb5support0","binary_version":"1.12+dfsg-2ubuntu5.4+esm7"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-15088.json"}},{"package":{"name":"krb5","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/krb5@1.13.2+dfsg-5ubuntu2.2+esm3?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+esm3"}]}],"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"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"krb5-admin-server","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"krb5-gss-samples","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"krb5-k5tls","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"krb5-kdc","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"krb5-kdc-ldap","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"krb5-locales","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"krb5-multidev","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"krb5-otp","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"krb5-pkinit","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"krb5-user","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"libgssapi-krb5-2","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"libgssrpc4","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"libk5crypto3","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"libkadm5clnt-mit9","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"libkadm5srv-mit9","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"libkdb5-8","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"libkrad0","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"libkrb5-3","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"},{"binary_name":"libkrb5support0","binary_version":"1.13.2+dfsg-5ubuntu2.2+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-15088.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:H/A:H"},{"type":"Ubuntu","score":"negligible"}]}