Vulnerabilities (CVE)

Filtered by vendor Mit Subscribe
Filtered by product Kerberos 5
Total 135 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2017-11368 2 Fedoraproject, Mit 3 Fedora, Kerberos, Kerberos 5 2025-04-20 4.0 MEDIUM 6.5 MEDIUM
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.
CVE-2017-15088 1 Mit 1 Kerberos 5 2025-04-20 7.5 HIGH 9.8 CRITICAL
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. NOTE: this has security relevance only in use cases outside of the MIT Kerberos distribution, e.g., the use of get_matching_data in KDC certauth plugin code that is specific to Red Hat.
CVE-2017-11462 2 Fedoraproject, Mit 2 Fedora, Kerberos 5 2025-04-20 7.5 HIGH 9.8 CRITICAL
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.
CVE-2022-42898 3 Heimdal Project, Mit, Samba 3 Heimdal, Kerberos 5, Samba 2025-04-14 N/A 8.8 HIGH
PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."
CVE-2014-4345 1 Mit 1 Kerberos 5 2025-04-12 8.5 HIGH N/A
Off-by-one error in the krb5_encode_krbsecretkey function in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the LDAP KDB module in kadmind in MIT Kerberos 5 (aka krb5) 1.6.x through 1.11.x before 1.11.6 and 1.12.x before 1.12.2 allows remote authenticated users to cause a denial of service (buffer overflow) or possibly execute arbitrary code via a series of "cpw -keepold" commands.
CVE-2014-5355 1 Mit 1 Kerberos 5 2025-04-12 5.0 MEDIUM N/A
MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '\0' character, which allows remote attackers to (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '\0' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.
CVE-2014-5353 7 Canonical, Debian, Fedoraproject and 4 more 12 Ubuntu Linux, Debian Linux, Fedora and 9 more 2025-04-12 3.5 LOW N/A
The krb5_ldap_get_password_policy_from_dn function in plugins/kdb/ldap/libkdb_ldap/ldap_pwd_policy.c in MIT Kerberos 5 (aka krb5) before 1.13.1, when the KDC uses LDAP, allows remote authenticated users to cause a denial of service (daemon crash) via a successful LDAP query with no results, as demonstrated by using an incorrect object type for a password policy.
CVE-2014-4344 3 Debian, Mit, Redhat 6 Debian Linux, Kerberos 5, Enterprise Linux Desktop and 3 more 2025-04-12 7.8 HIGH N/A
The acc_ctx_cont function in the SPNEGO acceptor in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty continuation token at a certain point during a SPNEGO negotiation.
CVE-2014-9421 1 Mit 1 Kerberos 5 2025-04-12 9.0 HIGH N/A
The auth_gssapi_unwrap_data function in lib/rpc/auth_gssapi_misc.c in MIT Kerberos 5 (aka krb5) through 1.11.5, 1.12.x through 1.12.2, and 1.13.x before 1.13.1 does not properly handle partial XDR deserialization, which allows remote authenticated users to cause a denial of service (use-after-free and double free, and daemon crash) or possibly execute arbitrary code via malformed XDR data, as demonstrated by data sent to kadmind.
CVE-2015-2695 6 Canonical, Debian, Mit and 3 more 9 Ubuntu Linux, Debian Linux, Kerberos 5 and 6 more 2025-04-12 5.0 MEDIUM N/A
lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) before 1.14 relies on an inappropriate context handle, which allows remote attackers to cause a denial of service (incorrect pointer read and process crash) via a crafted SPNEGO packet that is mishandled during a gss_inquire_context call.
CVE-2014-4342 3 Debian, Mit, Redhat 7 Debian Linux, Kerberos, Kerberos 5 and 4 more 2025-04-12 5.0 MEDIUM N/A
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.
CVE-2014-5354 1 Mit 2 Kerberos, Kerberos 5 2025-04-12 3.5 LOW N/A
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.
CVE-2015-8630 1 Mit 1 Kerberos 5 2025-04-12 5.0 MEDIUM 7.5 HIGH
The (1) kadm5_create_principal_3 and (2) kadm5_modify_principal functions in lib/kadm5/srv/svr_principal.c in kadmind in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.4 and 1.14.x before 1.14.1 allow remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) by specifying KADM5_POLICY with a NULL policy name.
CVE-2015-2698 1 Mit 1 Kerberos 5 2025-04-12 8.5 HIGH N/A
The iakerb_gss_export_sec_context function in lib/gssapi/krb5/iakerb.c in MIT Kerberos 5 (aka krb5) 1.14 pre-release 2015-09-14 improperly accesses a certain pointer, which allows remote authenticated users to cause a denial of service (memory corruption) or possibly have unspecified other impact by interacting with an application that calls the gss_export_sec_context function. NOTE: this vulnerability exists because of an incorrect fix for CVE-2015-2696.
CVE-2015-2694 1 Mit 1 Kerberos 5 2025-04-12 5.8 MEDIUM N/A
The kdcpreauth modules in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing (1) zero bytes of data or (2) an arbitrary realm name, related to plugins/preauth/otp/main.c and plugins/preauth/pkinit/pkinit_srv.c.
CVE-2015-2696 5 Canonical, Debian, Mit and 2 more 8 Ubuntu Linux, Debian Linux, Kerberos 5 and 5 more 2025-04-12 7.1 HIGH N/A
lib/gssapi/krb5/iakerb.c in MIT Kerberos 5 (aka krb5) before 1.14 relies on an inappropriate context handle, which allows remote attackers to cause a denial of service (incorrect pointer read and process crash) via a crafted IAKERB packet that is mishandled during a gss_inquire_context call.
CVE-2016-3119 2 Mit, Opensuse 3 Kerberos 5, Leap, Opensuse 2025-04-12 3.5 LOW 5.3 MEDIUM
The process_db_args function in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the LDAP KDB module in kadmind in MIT Kerberos 5 (aka krb5) through 1.13.4 and 1.14.x through 1.14.1 mishandles the DB argument, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted request to modify a principal.
CVE-2014-4341 4 Debian, Fedoraproject, Mit and 1 more 10 Debian Linux, Fedora, Kerberos 5 and 7 more 2025-04-12 5.0 MEDIUM N/A
MIT Kerberos 5 (aka krb5) before 1.12.2 allows remote attackers to cause a denial of service (buffer over-read and application crash) by injecting invalid tokens into a GSSAPI application session.
CVE-2015-2697 6 Canonical, Debian, Mit and 3 more 9 Ubuntu Linux, Debian Linux, Kerberos 5 and 6 more 2025-04-12 4.0 MEDIUM N/A
The build_principal_va function in lib/krb5/krb/bld_princ.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.
CVE-2014-4343 3 Debian, Mit, Redhat 6 Debian Linux, Kerberos 5, Enterprise Linux Desktop and 3 more 2025-04-12 7.6 HIGH N/A
Double free vulnerability in the init_ctx_reselect function in the SPNEGO initiator in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.10.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via network traffic that appears to come from an intended acceptor, but specifies a security mechanism different from the one proposed by the initiator.