CVE-2017-17439

In Heimdal through 7.4, remote unauthenticated attackers are able to crash the KDC by sending a crafted UDP packet containing empty data fields for client name or realm. The parser would unconditionally dereference NULL pointers in that case, leading to a segmentation fault. This is related to th...

PT-2017-14780

Name of the Vulnerable Software and Affected Versions Heimdal versions prior to 7.5 Description The issue allows remote unauthenticated attackers to crash the KDC by sending a crafted UDP packet with empty data fields for client name or realm. This leads to a segmentation fault due to the parser...

CVE-2017-17439: NULL Pointer Dereference

In Heimdal through 7.4, remote unauthenticated attackers are able to crash the KDC by sending a crafted UDP packet containing empty data fields for client name or realm. The parser would unconditionally dereference NULL pointers in that case, leading to a segmentation fault. This is related to th...

OpenJDK: use of unprotected sname in Kerberos client (Libraries, 8178794)

It was discovered that the Kerberos client implementation in the Libraries component of OpenJDK used the sname field from the plain text part rather than encrypted part of the KDC reply message. A man-in-the-middle attacker could possibly use this flaw to impersonate Kerberos services to Java...

OpenJDK: use of unprotected sname in Kerberos client (Libraries, 8178794)

It was discovered that the Kerberos client implementation in the Libraries component of OpenJDK used the sname field from the plain text part rather than encrypted part of the KDC reply message. A man-in-the-middle attacker could possibly use this flaw to impersonate Kerberos services to Java...

OpenJDK: use of unprotected sname in Kerberos client (Libraries, 8178794)

It was discovered that the Kerberos client implementation in the Libraries component of OpenJDK used the sname field from the plain text part rather than encrypted part of the KDC reply message. A man-in-the-middle attacker could possibly use this flaw to impersonate Kerberos services to Java...

Buffer overflow

plugins/preauth/pkinit/pkinitcryptoopenssl.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,...

CVE-2017-15088

plugins/preauth/pkinit/pkinitcryptoopenssl.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,...

CVE-2017-15088

plugins/preauth/pkinit/pkinitcryptoopenssl.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,...

CVE-2017-15088

plugins/preauth/pkinit/pkinitcryptoopenssl.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,...

Updated krb5 packages fix security vulnerabilities

An authentication bypass flaw was found in the way krb5's certauth interface handled the validation of client certificates. A remote attacker able to communicate with the KDC could potentially use this flaw to impersonate arbitrary principals under rare and erroneous circumstances CVE-2017-7562...

FreeBSD : FreeBSD -- heimdal KDC-REP service name validation vulnerability (420243e9-a840-11e7-b5af-a4badb2f4699)

There is a programming error in the Heimdal implementation that used an unauthenticated, plain-text version of the KDC-REP service name found in a ticket. Impact : An attacker who has control of the network between a client and the service it talks to will be able to impersonate the service,...

openSUSE Security Update : samba and resource-agents (openSUSE-2017-987) (Orpheus' Lyre)

This update provides Samba 4.6.7, which fixes the following issues : - CVE-2017-11103: Metadata were being taken from the unauthenticated plaintext the Ticket rather than the authenticated and encrypted KDC response. bsc1048278 - Fix cephwrapchdir. bsc1048790 - Fix ctdb logs to /var/log/log.ctdb...

CVE-2017-7562

An authentication bypass flaw was found in the way krb5's certauth interface handled the validation of client certificates. A remote attacker able to communicate with the KDC could potentially use this flaw to impersonate arbitrary principals under rare and erroneous circumstances...

PYSEC-2017-49

The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows remote attackers to cause a denial of service bad response, or have other unspecified impact by performing a man-in-the-middle attack...

PYSEC-2017-66

The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows remote attackers to cause a denial of service bad response, or have other unspecified impact by performing a man-in-the-middle attack...

CVE-2015-3206

The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows remote attackers to cause a denial of service bad response, or have other unspecified impact by performing a man-in-the-middle attack...

Design/Logic Flaw

The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows remote attackers to cause a denial of service bad response, or have other unspecified impact by performing a man-in-the-middle attack...

CVE-2015-3206

The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows remote attackers to cause a denial of service bad response, or have other unspecified impact by performing a man-in-the-middle attack...

CVE-2015-3206

The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows remote attackers to cause a denial of service bad response, or have other unspecified impact by performing a man-in-the-middle attack...