CVE-2020-28196

CVE-2020-28196 affects MIT Kerberos 5 (krb5) prior to 1.17.2 and 1.18.x prior to 1.18.3. The vulnerability stems from unbounded recursion in the ASN.1 BER decoder (lib/krb5/asn.1/asn1_encode.c) due to no recursion limit for indefinite lengths. This can lead to denial of service due to resource ex...

CVE-2021-37750

CVE-2021-37750 is a vulnerability in MIT Kerberos 5 (krb5) where the Key Distribution Center (KDC) can suffer a NULL pointer dereference in kdc/do_tgs_req.c via a FAST inner body that lacks a server field. Affected releases include krb5 before 1.18.5 and 1.19.x before 1.19.3. The issue can cause ...

CVE-2023-36054

MIT Kerberos 5 (krb5) contains a vulnerability CVE-2023-36054 where lib/kadm5/kadm_rpc_xdr.c frees an uninitialized pointer due to improper validation between n_key_data and the key_data array. A remote authenticated user can trigger a kadmind crash. Affected versions include krb5 before 1.20.2 a...

CVE-2021-36222

CVE-2021-36222 affects MIT Kerberos 5 (krb5) KDC: the ec_verify path in kdc/kdc_preauth_ec.c can trigger a NULL pointer dereference and daemon crash. The issue occurs in KDC processing for PA-ENCRYPTED-CHALLENGE data when not correctly handling a return value in certain situations, leading to a d...

CVE-2002-2443

CVE-2002-2443 affects MIT Kerberos 5 (krb5) kadmind, specifically the kpasswd service, where schpw.c does not validate incoming UDP packets. This can allow a remote attacker to cause a denial of service via a forged UDP packet that triggers a packet/communication loop, consuming CPU and bandwidth...

CVE-2024-37370

Summary: CVE-2024-37370 affects MIT Kerberos 5 (krb5) before 1.21.3. An attacker can modify the plaintext Extra Count field in a confidential GSS wrap token, causing the unwrapped token to appear truncated to the application. The issue is tied to krb5’s GSS token handling and can impact confident...

CVE-2024-37371

CVE-2024-37371 details (krb5) : MIT Kerberos 5 (krb5) before 1.21.3 is affected. An attacker can trigger invalid memory reads during GSS token handling by sending tokens with invalid length fields, as described in multiple vendor advisories. Affected versions are krb5 up to but not including 1.21...

CVE-2013-1418

The CVE-2013-1418 issue affects MIT Kerberos 5 (krb5) KDC: when multiple realms are configured, setup_server_realm() can dereference NULL and crash the daemon via a crafted request, causing DoS. Remote unauthenticated access is possible per the description. Public details in connected sources con...

CVE-2013-1416

CVE-2013-1416 affects MIT Kerberos 5 (krb5) KDC prior to 1.10.5. The prep_reprocess_req function in do_tgs_req.c does not correctly perform service-principal realm referral, enabling a remote authenticated user to trigger a denial of service via a crafted TGS-REQ, causing a NULL pointer dereferen...

CVE-2015-8631

CVE-2015-8631 affects MIT Kerberos 5 (krb5) kadmind; a memory leak caused by the code path in kadmin/server/server_stubs.c can be triggered by a request with a NULL principal name. The issue, described as a denial of service via memory exhaustion, occurs in krb5 builds prior to 1.13.4 and in 1.14...

CVE-2015-8629

The vulnerability CVE-2015-8629 affects MIT Kerberos 5 (krb5) kadmind: the xdr_nullstring function in kadm_rpc_xdr.c does not reliably verify presence of terminating '\0' in strings, allowing a remote authenticated user to trigger an out-of-bounds read that can disclose sensitive information or c...

CVE-2014-4341

MIT Kerberos 5 (krb5) CVE-2014-4341 is a remote DoS in which an attacker can cause a buffer over-read and crash a GSSAPI session by injecting invalid tokens. Public sources tie this to krb5 releases prior to 1.12.2 (upstream flag) and show impact on servers/applications using GSSAPI SPNEGO. The F...

CVE-2009-0846

The CVE-2009-0846 issue is in MIT Kerberos 5 (krb5) before 1.6.4. The ASN.1 GeneralizedTime decoder’s asn1_decode_generaltime function triggers a free of an uninitialized pointer when processing invalid DER encoding, enabling a remote attacker to cause a denial of service (daemon crash) or possib...

CVE-2015-2697

CVE-2015-2697 affects MIT Kerberos 5 (krb5) prior to 1.14. The issue is triggered via a remote authenticated TGS request where the realm field starts with a null byte, enabling an out-of-bounds condition that can crash the KDC (denial of service). The connected document confirms the vulnerability...

CVE-2014-5353

The CVE-2014-5353 issue affects MIT Kerberos krb5 when the KDC uses LDAP. A remote authenticated user can crash the KDC/daemon by issuing an LDAP query with no results using an incorrect password policy object type. Root cause: LDAP KDB back end handling of password policy objects (in ldap_pwd_po...

CVE-2007-0957

CVE-2007-0957 involves a stack-based buffer overflow in the krb5_klog_syslog function of the MIT Kerberos 5 kadm5 library used by kadmind and the KDC. The vulnerability arises from a boundary/format handling issue, enabling remote authenticated users to execute arbitrary code and modify the Kerbe...

CVE-2007-1216

CVE-2007-1216 is a double-free vulnerability in the MIT Kerberos 5 GSS-API library (libgssapi/krb5/k5unseal.c) used by kadmind, exploitable when the RPCSEC_GSS authentication method is involved. It affects MIT krb5 prior to version 1.6.1, enabling remote authenticated users to execute arbitrary c...

CVE-2007-0956

The MIT Kerberos 5 telnet daemon (telnetd) flaw CVE-2007-0956 allows remote authentication bypass by a login attempt with a username starting with a '-' character. Public advisories (Debian, CentOS, RH/others) state this affects krb5 telnetd prior to fixed releases and that updates/patches are av...

CVE-2015-2695

CVE-2015-2695 affects MIT Kerberos 5 (krb5) where the krb5 GSS-API SPNEGO mechanism mishandles a context, relying on an inappropriate context handle. This can enable a remote attacker to cause a denial of service via a crafted gss_inquire_context call on a partially-established SPNEGO context, le...

CVE-2015-2696

MIT Kerberos 5 (krb5) vulnerability CVE-2015-2696 arises from an inappropriate context handle in iakerb.c, enabling remote denial of service via crafted IAKERB packets during gss_inquire_context. IBM CP4S remediation in the connected materials shows affected Cloud Pak for Security versions 1.8.0....

CVE-2013-1415

MIT Kerberos 5 PKINIT: The pkinit_check_kdc_pkid() path in pkinit_crypto_openssl.c may fail to handle errors when extracting fields from an X.509 certificate, allowing a remote attacker to trigger a NULL pointer dereference and daemon crash via a malformed KRB5_PADATA_PK_AS_REQ AS-REQ. Affected a...

CVE-2012-1016

CVE-2012-1016 affects MIT Kerberos 5 PKINIT in the KDC, where pkinit_server_return_padata may mis-handle an agility KDF check under crafted Draft 9 requests, enabling a remote attacker to trigger a NULL pointer dereference and daemon crash (DoS). Affected: krb5 PKINIT prior to version 1.10.4. Mit...

CVE-2001-1323

CVE-2001-1323 concerns a buffer overflow in MIT Kerberos 5 (krb5) 1.2.2 and earlier triggered by base-64 encoded data during radix_encode processing of FTP glob output in the gssapi-enabled ftpd. The underlying issue is a missing bounds check in the ftpglob/radix_encode handling, enabling potenti...