CVE-2021-37750

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 v3.0 6.5 MEDIUM
CVSS v2.0 4.0 MEDIUM

6.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:N/I:N/A:P

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/krb5/krb5/releases	Release Notes Third Party Advisory
https://web.mit.edu/kerberos/advisories/	Vendor Advisory
https://github.com/krb5/krb5/commit/d775c95af7606a51bf79547a94fa52ddd1cb7f49	Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MFCLW7D46E4VCREKKH453T5DA4XOLHU2/	Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20210923-0002/	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/09/msg00019.html	Mailing List Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mit:kerberos_5::::::::
	cpe:2.3:a:mit:kerberos_5::::::::

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Information

Published : 2021-08-23 05:15

Updated : 2022-07-25 18:16

NVD link : CVE-2021-37750

Mitre link : CVE-2021-37750

JSON object : View

Products Affected

mit

kerberos_5

fedoraproject

fedora

debian

debian_linux

CWE

CWE-476

NULL Pointer Dereference

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