CVE-2021-37750

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.42%
Vendor Advisory fedoraproject.org Vendor Advisory mit.edu
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://web.mit.edu/kerberos/advisories/ vendor advisory
https://github.com/krb5/krb5/releases third party advisory release notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MFCLW7D46E4VCREKKH453T5DA4XOLHU2/ vendor advisory
https://lists.debian.org/debian-lts-announce/2021/09/msg00019.html third party advisory mailing list
https://www.oracle.com/security-alerts/cpujul2022.html third party advisory patch
https://github.com/krb5/krb5/commit/d775c95af7606a51bf79547a94fa52ddd1cb7f49 third party advisory patch
https://security.netapp.com/advisory/ntap-20210923-0002/ third party advisory
https://www.starwindsoftware.com/security/sw-20220817-0004/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-37750?
CVE-2021-37750 has been scored as a medium severity vulnerability.
How to fix CVE-2021-37750?
To fix CVE-2021-37750, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-37750 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-37750 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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