CVE-2021-36222

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Source
https://cve.org/CVERecord?id=CVE-2021-36222
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-36222.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-36222
Downstream
Related
Published
2021-07-22T18:15:23.337Z
Modified
2026-07-08T22:13:27.319857Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

ecverify in kdc/kdcpreauth_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.

Database specific 
{
    "unresolved_ranges": [
        {
            "cpes": [
                "cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
                {
                    "fixed": "1.18.4"
                }
            ],
            "vendor_product": "mit:kerberos_5",
            "source": "CPE_RANGE"
        },
        {
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
                {
                    "introduced": "10.0"
                },
                {
                    "last_affected": "10.0"
                }
            ],
            "vendor_product": "debian:debian_linux",
            "source": "CPE_STRING"
        }
    ]
}
References

Affected packages

Git / github.com/krb5/krb5

Affected ranges

Type
GIT
Repo
https://github.com/krb5/krb5
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
05405c3d24c2d84ba79e355ae82f4b1b9884938c
Fixed
eb0a1e051c9133da28613563c4b530bf8d875624
Fixed
fc98f520caefff2e5ee9a0026fdf5109944b3562
Database specific 
{
    "cpe": "cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.18.4"
        },
        {
            "introduced": "1.19.0"
        },
        {
            "fixed": "1.19.2"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

krb5-1.*
krb5-1.18-beta1
krb5-1.18-beta2
krb5-1.18-final
krb5-1.18.1-final
krb5-1.18.2-final
krb5-1.18.3-final
krb5-1.19-beta1
krb5-1.19-beta2
krb5-1.19-final
krb5-1.19.1-final

Database specific

vanir_signatures 
[
    {
        "source": "https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562",
        "signature_version": "v1",
        "signature_type": "Line",
        "digest": {
            "line_hashes": [
                "11212649172673180521140604104188591304",
                "228806048721091709572489333951828356198",
                "321289942291638231764076182789317623244",
                "93469301882783218346945084207915710111"
            ],
            "threshold": 0.9
        },
        "deprecated": false,
        "id": "CVE-2021-36222-4eafeb47",
        "target": {
            "file": "src/kdc/kdc_preauth_ec.c"
        }
    },
    {
        "source": "https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562",
        "signature_version": "v1",
        "signature_type": "Function",
        "digest": {
            "function_hash": "137210320503581614737329061627982532169",
            "length": 2350.0
        },
        "deprecated": false,
        "id": "CVE-2021-36222-f3fc596a",
        "target": {
            "function": "ec_verify",
            "file": "src/kdc/kdc_preauth_ec.c"
        }
    }
]
vanir_signatures_modified 
"2026-07-08T22:13:27Z"
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-36222.json"

Git / github.com/mysql/mysql-server

Affected ranges

Type
GIT
Repo
https://github.com/mysql/mysql-server
Events
Introduced
270fd3411e3d671a73ed9725940a30080f59ce6d
Last affected
beb865a960b9a8a16cf999c323e46c5b0c67f21f
Database specific 
{
    "cpe": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "8.0.0"
        },
        {
            "last_affected": "8.0.26"
        }
    ],
    "source": "CPE_RANGE"
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-36222.json"