CVE-2021-2166

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-2166
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-2166.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-2166
Aliases
Downstream
Related
Published
2021-04-22T22:15:13Z
Modified
2025-10-15T12:57:19.368055Z
Severity
  • 4.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DML). Supported versions that are affected are 5.7.33 and prior and 8.0.23 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

References

Affected packages

Git / github.com/mariadb/server

Affected ranges

Type
GIT
Repo
https://github.com/mariadb/server
Events
Introduced
9664240c948a92c22ccda0e1f5a420eb776ddcb1
Fixed
a20195bba5ff695b8c00b8b3f57edced3c1108a6

Affected versions

mariadb-10.*

mariadb-10.0.25
mariadb-10.0.26
mariadb-10.0.27
mariadb-10.0.28
mariadb-10.0.29
mariadb-10.0.30
mariadb-10.0.31
mariadb-10.0.32
mariadb-10.0.33
mariadb-10.0.34
mariadb-10.0.35
mariadb-10.0.36
mariadb-10.0.37
mariadb-10.0.38
mariadb-10.1.14
mariadb-10.1.15
mariadb-10.1.16
mariadb-10.1.17
mariadb-10.1.18
mariadb-10.1.19
mariadb-10.1.20
mariadb-10.1.21
mariadb-10.1.22
mariadb-10.1.23
mariadb-10.1.24
mariadb-10.1.25
mariadb-10.1.26
mariadb-10.1.27
mariadb-10.1.28
mariadb-10.1.29
mariadb-10.1.30
mariadb-10.1.31
mariadb-10.1.32
mariadb-10.1.33
mariadb-10.1.34
mariadb-10.1.35
mariadb-10.1.36
mariadb-10.1.37
mariadb-10.1.38
mariadb-10.1.39
mariadb-10.1.40
mariadb-10.1.41
mariadb-10.1.42
mariadb-10.1.43
mariadb-10.1.44
mariadb-10.1.45
mariadb-10.1.46
mariadb-10.1.47
mariadb-10.2.0
mariadb-10.2.1
mariadb-10.2.10
mariadb-10.2.11
mariadb-10.2.12
mariadb-10.2.13
mariadb-10.2.14
mariadb-10.2.15
mariadb-10.2.16
mariadb-10.2.17
mariadb-10.2.18
mariadb-10.2.19
mariadb-10.2.2
mariadb-10.2.20
mariadb-10.2.21
mariadb-10.2.22
mariadb-10.2.23
mariadb-10.2.24
mariadb-10.2.25
mariadb-10.2.26
mariadb-10.2.27
mariadb-10.2.28
mariadb-10.2.29
mariadb-10.2.3
mariadb-10.2.30
mariadb-10.2.31
mariadb-10.2.32
mariadb-10.2.33
mariadb-10.2.34
mariadb-10.2.35
mariadb-10.2.36
mariadb-10.2.37
mariadb-10.2.4
mariadb-10.2.5
mariadb-10.2.6
mariadb-10.2.7
mariadb-10.2.8
mariadb-10.2.9

mariadb-5.*

mariadb-5.5.49
mariadb-5.5.50
mariadb-5.5.51
mariadb-5.5.52
mariadb-5.5.53
mariadb-5.5.54
mariadb-5.5.55
mariadb-5.5.56
mariadb-5.5.57
mariadb-5.5.58
mariadb-5.5.59
mariadb-5.5.60
mariadb-5.5.61
mariadb-5.5.62
mariadb-5.5.63
mariadb-5.5.64
mariadb-5.5.65
mariadb-5.5.66
mariadb-5.5.67
mariadb-5.5.68

mariadb-galera-10.*

mariadb-galera-10.0.25
mariadb-galera-10.0.26
mariadb-galera-10.0.27
mariadb-galera-10.0.28
mariadb-galera-10.0.29
mariadb-galera-10.0.30
mariadb-galera-10.0.31
mariadb-galera-10.0.32
mariadb-galera-10.0.33
mariadb-galera-10.0.34
mariadb-galera-10.0.35
mariadb-galera-10.0.36
mariadb-galera-10.0.37

mariadb-galera-5.*

mariadb-galera-5.5.49
mariadb-galera-5.5.50
mariadb-galera-5.5.51
mariadb-galera-5.5.52
mariadb-galera-5.5.53
mariadb-galera-5.5.54
mariadb-galera-5.5.55
mariadb-galera-5.5.56
mariadb-galera-5.5.57
mariadb-galera-5.5.58
mariadb-galera-5.5.59
mariadb-galera-5.5.60
mariadb-galera-5.5.61
mariadb-galera-5.5.62

mysql-5.*

mysql-5.5.49
mysql-5.5.50
mysql-5.5.51
mysql-5.5.52
mysql-5.5.53
mysql-5.5.54
mysql-5.5.55
mysql-5.5.56
mysql-5.5.57
mysql-5.5.58
mysql-5.5.59
mysql-5.5.60
mysql-5.5.61
mysql-5.5.62

Database specific

vanir_signatures

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        "digest": {
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        "signature_type": "Function",
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    {
        "signature_version": "v1",
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        "source": "https://github.com/mariadb/server/commit/a20195bba5ff695b8c00b8b3f57edced3c1108a6",
        "digest": {
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        },
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    {
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        "deprecated": false
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    {
        "signature_version": "v1",
        "id": "CVE-2021-2166-7b0b2027",
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        "digest": {
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        },
        "signature_type": "Function",
        "deprecated": false
    },
    {
        "signature_version": "v1",
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        "target": {
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        },
        "source": "https://github.com/mariadb/server/commit/a20195bba5ff695b8c00b8b3f57edced3c1108a6",
        "digest": {
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        },
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        "deprecated": false
    },
    {
        "signature_version": "v1",
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    {
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