CVE-2022-42898

CVE-2022-42898 concerns integer overflow in PAC parsing within MIT Kerberos 5 (krb5) via the krb5_pac_parse function in lib/krb5/krb/pac.c. Affected: krb5 before 1.19.4 and 1.20.x before 1.20.1; 32-bit platforms may trigger remote code execution in KDC, kadmind, or a GSS/Kerberos application serv...

CVE-2017-11103

CVE-2017-11103 affects Heimdal (Kerberos); vulnerability arises from improper handling of the KDC-REP service name in krb5_extract_ticket, enabling remote service impersonation when the unencrypted service name is used instead of the encrypted enc_part. Apple’s security content (HT208112/HT208221...

CVE-2022-44640

CVE-2022-44640 relates to Heimdal prior to 7.7.1, where an invalid free in the ASN.1 codec used by the KDC may allow remote code execution. The vulnerability is replicated in multiple vendor advisories (e.g., Astra Linux bulletin and Debian/Alpine security trackers) and is described as enabling a...

CVE-2021-44758

CVE-2021-44758 affects Heimdal prior to 7.7.1 and is described in multiple sources. The issue is a NULL pointer dereference in a SPNEGO acceptor triggered when the initial SPNEGO token contains a preferred_mech_type of GSS_C_NO_OID and a nonzero initial_response value, allowing a remote attacker ...

CVE-2019-12098

CVE-2019-12098 affects Heimdal Kerberos 5 clients; the issue is failure to verify anonymous PKINIT KX (PA-PKINIT-KX) during the key exchange, enabling potential MITM. Public advisories indicate this was fixed in newer Heimdal releases (e.g., 7.6.0+ and later such as 7.7.0 in openSUSE/SUSE bundles...

CVE-2022-41916

CVE-2022-41916 is a denial-of-service vulnerability in Heimdal’s PKI certificate validation (libhx509). The issue affects Heimdal versions prior to 7.7.1, including KDC via PKINIT and kinit via PKINIT, and any third-party apps using libhx509. Public documentation consistently states that upgradin...

CVE-2004-0434

The CVE-2004-0434 vulnerability is confirmed by connected advisories: in Heimdal kadmind (Kerberos 5 with Kerberos 4 support), a remote attacker can send a Kerberos 4 framing length of less than 2, triggering a heap-based buffer overflow. This affects kadmind components when Kerberos 4 support is...