CVE-2017-15088
CriticalSummary
The MIT Kerberos 5 (krb5) library up to version 1.15.2 mishandles Distinguished Name (DN) fields, allowing remote attackers to execute arbitrary code or cause application crashes via buffer overflow.
Risk Assessment
Attackers may exploit this vulnerability to execute code remotely or disrupt system operations, leading to serious security implications for the organization.
Recommendation
It is recommended to upgrade to the latest version of MIT Kerberos to mitigate this vulnerability and to monitor the use of functions related to X.509 data processing.
Original NVD description (English source)
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.