Executive Summary

Informations
Name CVE-2021-37750 First vendor Publication 2021-08-23
Vendor Cve Last vendor Modification 2021-10-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 6.5
Base Score 6.5 Environmental Score 6.5
impact SubScore 3.6 Temporal Score 6.5
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:S/C:N/I:N/A:P)
Cvss Base Score 4 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.5 and 1.19.x before 1.19.3 has a NULL pointer dereference in kdc/do_tgs_req.c via a FAST inner body that lacks a server field.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37750

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 91
Os 1
Os 1

Sources (Detail)

Source Url
CONFIRM https://github.com/krb5/krb5/commit/d775c95af7606a51bf79547a94fa52ddd1cb7f49
https://security.netapp.com/advisory/ntap-20210923-0002/
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
MISC https://github.com/krb5/krb5/releases
https://web.mit.edu/kerberos/advisories/
MLIST https://lists.debian.org/debian-lts-announce/2021/09/msg00019.html

Alert History

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Date Informations
2021-10-08 00:23:07
  • Multiple Updates
2021-10-01 05:23:12
  • Multiple Updates
2021-09-23 17:23:06
  • Multiple Updates
2021-08-30 17:22:52
  • Multiple Updates
2021-08-28 00:22:58
  • Multiple Updates
2021-08-23 17:22:49
  • Multiple Updates
2021-08-23 12:44:04
  • First insertion