CVE-2021-37750: Null Pointer Dereference
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/dotgsreq.c via a FAST inner body that lacks a server field.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is CVE-2021-37750?
CVE-2021-37750 is a vulnerability in the Key Distribution Center (KDC) in MIT Kerberos 5 that allows for a NULL pointer dereference via a FAST inner body that lacks a server field.
How does CVE-2021-37750 impact MIT Kerberos 5?
CVE-2021-37750 affects MIT Kerberos 5 versions before 1.18.5 and 1.19.x before 1.19.3, leading to a NULL pointer dereference in kdc/do_tgs_req.c.
What is the severity of CVE-2021-37750?
CVE-2021-37750 has a severity rating of 6.5, which is classified as medium.
How can I fix CVE-2021-37750?
To fix CVE-2021-37750, it is recommended to upgrade to MIT Kerberos 5 version 1.18.5 or apply the necessary patches provided by the vendor.
Are there any references for CVE-2021-37750?
Yes, you can find more information about CVE-2021-37750 at the following references: [Link 1](https://github.com/krb5/krb5/commit/d775c95af7606a51bf79547a94fa52ddd1cb7f49), [Link 2](https://github.com/krb5/krb5/releases), [Link 3](https://lists.debian.org/debian-lts-announce/2021/09/msg00019.html).