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CVE-2021-37750

Published: Aug 23, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-476
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
2.2%
Top 19.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-476

Affected Products

kerberos 5mit
On-prem
Operating Systems
fedorafedoraproject
On-premOS
Operating Systems / linux-distro
debian linuxdebian
On-premOS
Operating Systems / linux-distro
starwind virtual sanstarwindsoftware
On-prem
Cloud & SaaS / virtualization
communications cloud native core network slice selection functionoracle
On-premWeb App
Communications
mitoss-projectUSOperating Systemsaka mit krb5, mit kerberos
fedoraprojectoss-projectUSOperating Systemsaka fedora project
debianoss-projectGBOperating Systemsaka debian gnu/linux
starwindsoftwarecommercialCloud & SaaSaka starwind virtual san, starwind san & nas, command center
oraclecommercialUSDatabasesaka oracle corp.
and 4 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://github.com/krb5/krb5/commit/d775c95af7606a51bf79547a94fa52ddd1cb7f49
github.com
https://github.com/krb5/krb5/releases
github.com
https://lists.debian.org/debian-lts-announce/2021/09/msg00019.html
lists.debian.org
and 20 more references View all →

Timeline

Published
Aug 23, 2021
Last Updated
Nov 21, 2024

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