Mit Kerberos vulnerabilities

33 vulnerabilities

Known vulnerabilities in Mit Kerberos, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

5.3CVE-2018-20217alpinekrb5+32
EPSS score
1.42%
A Reachable Assertion issue was discovered in the KDC in MIT Kerberos 5 (aka krb5) before 1.17. If an attacker can obtain a krbtgt ticket using an older encryption type (single-DES, triple-DES, or RC4), the attacker can crash the KDC by making an S4U2Self request.
7.5CVE-2018-5709alpinekrb5+3
EPSS score
2.05%
An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->n_key_data" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has assigned a "u4" variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect other artifacts of the database as we know that a Kerberos database dump file contains trusted data.
6.5CVE-2018-5710alpinekrb5+3
EPSS score
1.80%
An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function "strlen" is getting a "NULL" string as a parameter value in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the Key Distribution Center (KDC), which allows remote authenticated users to cause a denial of service (NULL pointer dereference) via a modified kadmin client.
7.5CVE-2003-0138debianheimdal+2
EPSS score
4.28%
Version 4 of the Kerberos protocol (krb4), as used in Heimdal and other packages, allows an attacker to impersonate any principal in a realm via a chosen-plaintext attack.
5CVE-2003-0082debiankrb5+2
EPSS score
2.69%
The Key Distribution Center (KDC) in Kerberos 5 (krb5) 1.2.7 and earlier allows remote, authenticated attackers to cause a denial of service (crash) on KDCs within the same realm using a certain protocol request that causes the KDC to corrupt its heap (aka "buffer underrun").
7.5CVE-2003-0139debiankrb5+1
EPSS score
4.28%
Certain weaknesses in the implementation of version 4 of the Kerberos protocol (krb4) in the krb5 distribution, when triple-DES keys are used to key krb4 services, allow an attacker to create krb4 tickets for unauthorized principals using a cut-and-paste attack and "ticket splicing."
5CVE-2003-0072debiankrb5+2
EPSS score
1.95%
The Key Distribution Center (KDC) in Kerberos 5 (krb5) 1.2.7 and earlier allows remote, authenticated attackers to cause a denial of service (crash) on KDCs within the same realm using a certain protocol request that causes an out-of-bounds read of an array (aka "array overrun").
4CVE-2013-6800ubuntukrb5+2
EPSS score
2.61%
An unspecified third-party database module for the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.10.x allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted request, a different vulnerability than CVE-2013-1418.
5CVE-2014-4342debiankrb5+8
EPSS score
6.52%
MIT Kerberos 5 (aka krb5) 1.7.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (buffer over-read or NULL pointer dereference, and application crash) by injecting invalid tokens into a GSSAPI application session.
3.5CVE-2014-5354debiankrb5+3
EPSS score
1.74%
plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.1, when the KDC uses LDAP, allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) by creating a database entry for a keyless principal, as demonstrated by a kadmin "add_principal -nokey" or "purgekeys -all" command.
10CVE-2001-0554debiandebian_linux+10
EPSS score
38.75%
Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows remote attackers to execute arbitrary commands via a set of options including AYT (Are You There), which is not properly handled by the telrcv function.
2.1CVE-2001-0417mitkerberos+1
EPSS score
0.41%
Kerberos 4 (aka krb4) allows local users to overwrite arbitrary files via a symlink attack on new ticket files.
5CVE-2000-0546cygnus_network_security_projectcygnus_network_security+3
EPSS score
2.89%
Buffer overflow in Kerberos 4 KDC program allows remote attackers to cause a denial of service via the lastrealm variable in the set_tgtkey function.
10CVE-2000-0390cygnuscygnus_network_security+4
EPSS score
4.03%
Buffer overflow in krb425_conv_principal function in Kerberos 5 allows remote attackers to gain root privileges.
5CVE-2000-0547cygnus_network_security_projectcygnus_network_security+3
EPSS score
2.89%
Buffer overflow in Kerberos 4 KDC program allows remote attackers to cause a denial of service via the localrealm variable in the process_v4 function.
10CVE-2000-0391cygnuscygnus_network_security+4
EPSS score
4.03%
Buffer overflow in krshd in Kerberos 5 allows remote attackers to gain root privileges.
5CVE-2000-0548cygnus_network_security_projectcygnus_network_security+3
EPSS score
2.89%
Buffer overflow in Kerberos 4 KDC program allows remote attackers to cause a denial of service via the e_msg variable in the kerb_err_reply function.
5CVE-2000-0550cygnuscygnus_network_security+3
EPSS score
2.40%
Kerberos 4 KDC program improperly frees memory twice (aka "double-free"), which allows remote attackers to cause a denial of service.
10CVE-2000-0389cygnuscygnus_network_security+4
EPSS score
16.50%
Buffer overflow in krb_rd_req function in Kerberos 4 and 5 allows remote attackers to gain root privileges.
5CVE-2000-0549cygnuscygnus_network_security+3
EPSS score
2.28%
Kerberos 4 KDC program does not properly check for null termination of AUTH_MSG_KDC_REQUEST requests, which allows remote attackers to cause a denial of service via a malformed request.