Priority CRITICAL 87
Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.2 and earlier, Heimdal 1.5.1 and earlier, GNU inetutils, and possibly other products a…
CVSS 2.0HIGH 10.0· Network · No auth · Interaction — · EPSS 0.95061 · Published 2011-12-25 · Fixed CWE-120
Priority MEDIUM 53
Heimdal before 7.7.1 allows remote attackers to execute arbitrary code because of an invalid free in the ASN.1 codec used by the Key Distribution Center (KDC).
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.02349 · Published 2022-12-25 · No fix listed CWE-415
Priority MEDIUM 52
k5admind (kadmind) for Heimdal allows remote attackers to execute arbitrary code via a Kerberos 4 compatibility administration request whose framing length is less than 2, which leads to a heap-based buffer overflow.
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.07159 · Published 2004-05-12 · No fix listed CWE-131
Priority MEDIUM 50
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…
CVSS 3.1HIGH 8.8· Network · Low privileges · No interaction · EPSS 0.06858 · Published 2022-12-25 · Fixed CWE-190
Priority MEDIUM 43
Heimdal before 7.4 allows remote attackers to impersonate services with Orpheus' Lyre attacks because it obtains service-principal names in a way that violates the Kerberos 5 protocol specification.
CVSS 3.1HIGH 8.1· Network · No auth · No interaction · EPSS 0.05118 · Published 2017-07-13 · No fix listed CWE-345
Priority MEDIUM 42
Heimdal before 7.7.1 allows attackers to cause a NULL pointer dereference in a SPNEGO acceptor via a preferred_mech_type of GSS_C_NO_OID and a nonzero initial_response value to send_accept.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.01328 · Published 2022-12-26 · No fix listed CWE-476
Priority MEDIUM 41
The Heimdal Software Kerberos 5 implementation is vulnerable to a null pointer dereferance.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00892 · Published 2023-03-27 · No fix listed CWE-476
Priority LOW 39
The fix for CVE-2022-3437 included changing memcmp to be constant time and a workaround for a compiler bug by adding "!= 0" comparisons to the result of memcmp.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00487 · Published 2023-03-06 · No fix listed CWE-354
Priority LOW 39
In Heimdal through 7.4, remote unauthenticated attackers are able to crash the KDC by sending a crafted UDP packet containing empty data fields for client name or realm.
CVSS 3.0HIGH 7.5· Network · No auth · No interaction · EPSS 0.03427 · Published 2017-12-06 · No fix listed CWE-476
Priority LOW 38
In the client side of Heimdal before 7.6.0, failure to verify anonymous PKINIT PA-PKINIT-KX key exchange permits a man-in-the-middle attack.
CVSS 3.1HIGH 7.4· Network · No auth · No interaction · EPSS 0.01974 · Published 2019-05-15 · No fix listed CWE-295
Priority LOW 38
A flaw was found in samba's Heimdal KDC implementation, versions 4.8.x up to, excluding 4.8.12, 4.9.x up to, excluding 4.9.8 and 4.10.x up to, excluding 4.10.3, when used in AD DC mode.
CVSS 3.0HIGH 7.5· Network · Low privileges · No interaction · EPSS 0.02486 · Published 2019-07-31 · No fix listed CWE-358
Priority LOW 36
The transit path validation code in Heimdal before 7.3 might allow attackers to bypass the capath policy protection mechanism by leveraging failure to add the previous hop realm to the transit path of issued tickets.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.01759 · Published 2017-08-28 · No fix listed CWE-295
Priority LOW 35
Heimdal is an implementation of ASN.1/DER, PKIX, and Kerberos.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00995 · Published 2022-11-15 · Fixed in 7.7.1 CWE-193