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.
Source: krb5 (LP Ubuntu Debian)
Upstream:released (1.15.2-2)
Ubuntu 12.04 ESM (Precise Pangolin):needs-triage
Ubuntu 14.04 ESM (Trusty Tahr):needed
Ubuntu 16.04 LTS (Xenial Xerus):needed
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (1.15.2-2)
Ubuntu 19.04 (Disco Dingo):not-affected (1.15.2-2)
Ubuntu 19.10 (Eoan Ermine):not-affected (1.15.2-2)
Ubuntu 20.04 (Focal Fossa):not-affected (1.15.2-2)
Binaries built from this source package are in universe and so are supported by the community. For more details see
More Information

Updated: 2019-12-05 19:45:47 UTC (commit 0aa5e7c87c8b55d2ec5c7f4ca1179cf75de91961)