493 matches found
Double Free
libkrb5.so is vulnerable to Double Free. The vulnerability exists due to a failure in authorization data handling in the dotgsreq.c, which allows an attacker to cause the Key Distribution Center KDC to free the same pointer twice when incorrect data is copied from one ticket to another...
Anomaly detection in certificate-based TGT requests
One of the most complex yet effective methods of gaining unauthorized access to corporate network resources is an attack using forged certificates. Attackers create such certificates to fool the Key Distribution Center KDC into granting access to the target companys network. An example of such an...
UBUNTU-CVE-2023-3326
pamkrb5 authenticates a user by essentially running kinit with the password, getting a ticket-granting ticket tgt from the Kerberos KDC Key Distribution Center over the network, as a way to verify the password. However, if a keytab is not provisioned on the system, pamkrb5 has no way to validate...
Default credentials
pamkrb5 authenticates a user by essentially running kinit with the password, getting a ticket-granting ticket tgt from the Kerberos KDC Key Distribution Center over the network, as a way to verify the password. However, if a keytab is not provisioned on the system, pamkrb5 has no way to validate...
Moderate: Red Hat Security Advisory: krb5 security, bug fix, and enhancement update
An update for krb5 is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the C...
USN-5959-1 krb5 vulnerabilities
It was discovered that Kerberos incorrectly handled memory when processing KDC data, which could lead to a NULL pointer dereference. An attacker could possibly use this issue to cause a denial of service or have other unspecified impacts. CVE-2021-36222, CVE-2021-37750...
SUSE CVE-2005-1175
Heap-based buffer overflow in the Key Distribution Center KDC in MIT Kerberos 5 krb5 1.4.1 and earlier allows remote attackers to cause a denial of service application crash and possibly execute arbitrary code via a certain valid TCP or UDP request...
SUSE CVE-2005-1174
MIT Kerberos 5 krb5 1.3 through 1.4.1 Key Distribution Center KDC allows remote attackers to cause a denial of service application crash via a certain valid TCP connection that causes a free of unallocated memory...
SUSE CVE-2009-3295
The prepreprocessreq function in kdc/dotgsreq.c in the cross-realm referral implementation in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 1.7 before 1.7.1 allows remote attackers to cause a denial of service NULL pointer dereference and daemon crash via a ticket request...
SUSE CVE-2010-1320
Double free vulnerability in dotgsreq.c in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 1.7.x and 1.8.x before 1.8.2 allows remote authenticated users to cause a denial of service daemon crash or possibly execute arbitrary code via a request associated with 1 renewal or 2 validation...
SUSE CVE-2010-1322
The mergeauthdata function in kdcauthdata.c in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 1.8.x before 1.8.4 does not properly manage an index into an authorization-data list, which allows remote attackers to cause a denial of service daemon crash, or possibly obtain sensitive...
SUSE CVE-2010-1323
MIT Kerberos 5 aka krb5 1.3.x, 1.4.x, 1.5.x, 1.6.x, 1.7.x, and 1.8.x through 1.8.3 does not properly determine the acceptability of checksums, which might allow remote attackers to modify user-visible prompt text, modify a response to a Key Distribution Center KDC, or forge a KRB-SAFE message via...
SUSE CVE-2011-1529
The lookuplockoutpolicy function in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 1.8 through 1.8.4 and 1.9 through 1.9.1, when the db2 aka Berkeley DB or LDAP back end is used, allows remote attackers to cause a denial of service NULL pointer dereference and daemon crash via vectors...
SUSE CVE-2011-1530
The processtgsreq function in dotgsreq.c in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 1.9 through 1.9.2 allows remote authenticated users to cause a denial of service NULL pointer dereference and daemon crash via a crafted TGS request that triggers an error other than the...
SUSE CVE-2012-1015
The kdchandleprotectednegotiation function in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 1.8.x, 1.9.x before 1.9.5, and 1.10.x before 1.10.3 attempts to calculate a checksum before verifying that the key type is appropriate for a checksum, which allows remote attackers to execute...
SUSE CVE-2012-1016
The pkinitserverreturnpadata function in plugins/preauth/pkinit/pkinitsrv.c in the PKINIT implementation in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 before 1.10.4 attempts to find an agility KDF identifier in inappropriate circumstances, which allows remote attackers to cause a...
SUSE CVE-2015-2697
The buildprincipalva function in lib/krb5/krb/bldprinc.c in MIT Kerberos 5 aka krb5 before 1.14 allows remote authenticated users to cause a denial of service out-of-bounds read and KDC crash via an initial '\0' character in a long realm field within a TGS request...
SUSE CVE-2016-3120
The validateasrequest function in kdcutil.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 restrictanonymoustotgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service NU...
SUSE CVE-2017-7562
An authentication bypass flaw was found in the way krb5's certauth interface before 1.16.1 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...