HIGH 7.5 Microsoft
CVE-2021-36222
ec_verify in kdc/kdc_preauth_ec.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation.
Microsoft Security Update 2021-Jul: ec_verify in kdc/kdc_preauth_ec.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation.
Affected Products
- cm1 krb5 1.18.4-1 on CBL Mariner 1.0
- cbl2 krb5 1.19.2-1 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36222
- https://nvd.nist.gov/vuln/detail/CVE-2021-36222
This high severity vulnerability with a CVSS score of 7.5 was published on 2021-07-13 via Microsoft. EPSS score: 10.3% (top 4% of all CVEs by exploitation probability). Affected: cm1 krb5 1.18.4-1 on CBL Mariner 1.0, cbl2 krb5 1.19.2-1 on CBL Mariner 2.0.
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