The pkinit_check_kdc_pkid function in plugins/preauth/pkinit/pkinit_crypto_openssl.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 and 1.11.x before 1.11.1 does not properly handle errors during extraction of fields from an X.509 certificate, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed KRB5_PADATA_PK_AS_REQ AS-REQ request.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | krb5 | < 1.10.1+dfsg-4 | krb5_1.10.1+dfsg-4_all.deb |
Debian | 11 | all | krb5 | < 1.10.1+dfsg-4 | krb5_1.10.1+dfsg-4_all.deb |
Debian | 10 | all | krb5 | < 1.10.1+dfsg-4 | krb5_1.10.1+dfsg-4_all.deb |
Debian | 999 | all | krb5 | < 1.10.1+dfsg-4 | krb5_1.10.1+dfsg-4_all.deb |
Debian | 13 | all | krb5 | < 1.10.1+dfsg-4 | krb5_1.10.1+dfsg-4_all.deb |