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CVE-2021-37750

Date: August 22, 2021

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.

Language: C

Severity Score

Related Resources (15)

https://nvd.nist.gov/vuln/detail/CVE-2021-37750
https://access.redhat.com/security/cve/CVE-2021-37750
https://security.alpinelinux.org/vuln/CVE-2021-37750
https://lists.debian.org/debian-lts-announce/2021/09/msg00019.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MFCLW7D46E4VCREKKH453T5DA4XOLHU2/
https://github.com/krb5/krb5/releases
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MFCLW7D46E4VCREKKH453T5DA4XOLHU2/
https://security.netapp.com/advisory/ntap-20210923-0002/
https://security-tracker.debian.org/tracker/CVE-2021-37750
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-37750
https://www.starwindsoftware.com/security/sw-20220817-0004/
https://github.com/krb5/krb5/commit/d775c95af7606a51bf79547a94fa52ddd1cb7f49
https://web.mit.edu/kerberos/advisories/
https://www.oracle.com/security-alerts/cpujul2022.html
https://www.mend.io/vulnerability-database/CVE-2021-37750

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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