Vulnerabilities > MIT > Kerberos 5

DATE CVE VULNERABILITY TITLE RISK
2021-07-22 CVE-2021-36222 Null Pointer Dereference vulnerability in multiple products
ec_verify in kdc/kdc_preauth_ec.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash.
network
low complexity
mit debian CWE-476
5.0
2020-11-06 CVE-2020-28196 Uncontrolled Recursion vulnerability in MIT Kerberos 5
MIT Kerberos 5 (aka krb5) before 1.17.2 and 1.18.x before 1.18.3 allows unbounded recursion via an ASN.1-encoded Kerberos message because the lib/krb5/asn.1/asn1_encode.c support for BER indefinite lengths lacks a recursion limit.
network
low complexity
mit CWE-674
5.0
2019-09-26 CVE-2019-14844 A flaw was found in, Fedora versions of krb5 from 1.16.1 to, including 1.17.x, in the way a Kerberos client could crash the KDC by sending one of the RFC 4556 "enctypes".
network
low complexity
mit fedoraproject
5.0
2018-07-26 CVE-2017-7562 Improper Authentication vulnerability in multiple products
An authentication bypass flaw was found in the way krb5's certauth interface before 1.16.1 handled the validation of client certificates.
network
low complexity
redhat mit CWE-287
4.0
2018-03-06 CVE-2018-5730 Ldap Injection vulnerability in multiple products
MIT krb5 1.6 or later allows an authenticated kadmin with permission to add principals to an LDAP Kerberos database to circumvent a DN containership check by supplying both a "linkdn" and "containerdn" database argument, or by supplying a DN string which is a left extension of a container DN string but is not hierarchically within the container DN.
network
low complexity
mit fedoraproject debian redhat CWE-90
5.5
2018-03-06 CVE-2018-5729 Null Pointer Dereference vulnerability in multiple products
MIT krb5 1.6 or later allows an authenticated kadmin with permission to add principals to an LDAP Kerberos database to cause a denial of service (NULL pointer dereference) or bypass a DN container check by supplying tagged data that is internal to the database module.
network
low complexity
mit fedoraproject debian redhat CWE-476
6.5
2017-11-23 CVE-2017-15088 Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in MIT Kerberos 5
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.
network
low complexity
mit CWE-119
7.5
2017-09-13 CVE-2017-11462 Double Free vulnerability in multiple products
Double free vulnerability in MIT Kerberos 5 (aka krb5) allows attackers to have unspecified impact via vectors involving automatic deletion of security contexts on error.
network
low complexity
mit fedoraproject CWE-415
7.5
2017-08-09 CVE-2017-11368 Reachable Assertion vulnerability in multiple products
In MIT Kerberos 5 (aka krb5) 1.7 and later, an authenticated attacker can cause a KDC assertion failure by sending invalid S4U2Self or S4U2Proxy requests.
network
low complexity
fedoraproject mit CWE-617
4.0
2016-08-01 CVE-2016-3120 Null Pointer Dereference vulnerability in MIT Kerberos 5
The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.
network
low complexity
mit CWE-476
4.0