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Vulnerability details: VCID-qdy5-ppat-aaap
Vulnerability ID VCID-qdy5-ppat-aaap
Aliases CVE-2021-2020
Summary Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.20 and prior. Easily exploitable vulnerability allows low 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 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (0)
There are no known CWE.
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-2020.html
rhas Important https://access.redhat.com/errata/RHSA-2020:3518
rhas Important https://access.redhat.com/errata/RHSA-2020:3732
rhas Important https://access.redhat.com/errata/RHSA-2020:3755
rhas Important https://access.redhat.com/errata/RHSA-2020:3757
cvssv3 6.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-2020.json
epss 0.00323 https://api.first.org/data/v1/epss?cve=CVE-2021-2020
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epss 0.02822 https://api.first.org/data/v1/epss?cve=CVE-2021-2020
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1922387
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-2020
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2021-2020
cvssv3 6.5 https://nvd.nist.gov/vuln/detail/CVE-2021-2020
cvssv3.1 9.8 https://www.oracle.com/security-alerts/cpujan2021.html
generic_textual CRITICAL https://www.oracle.com/security-alerts/cpujan2021.html
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-2020.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-2020.json
https://api.first.org/data/v1/epss?cve=CVE-2021-2020
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-2020
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CS5THZSGI7O2CZO44NWYE57AG2T7NK3K/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T7EAHJPWOOF4D6PEFLXW5IQWRRSZ3HRC/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CS5THZSGI7O2CZO44NWYE57AG2T7NK3K/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T7EAHJPWOOF4D6PEFLXW5IQWRRSZ3HRC/
https://security.gentoo.org/glsa/202105-27
https://security.netapp.com/advisory/ntap-20210219-0003/
https://www.oracle.com/security-alerts/cpujan2021.html
1922387 https://bugzilla.redhat.com/show_bug.cgi?id=1922387
cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:snapcenter:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:snapcenter:-:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
CVE-2021-2020 https://nvd.nist.gov/vuln/detail/CVE-2021-2020
RHSA-2020:3518 https://access.redhat.com/errata/RHSA-2020:3518
RHSA-2020:3732 https://access.redhat.com/errata/RHSA-2020:3732
RHSA-2020:3755 https://access.redhat.com/errata/RHSA-2020:3755
RHSA-2020:3757 https://access.redhat.com/errata/RHSA-2020:3757
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-2020.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C Found at https://nvd.nist.gov/vuln/detail/CVE-2021-2020
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-2020
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://www.oracle.com/security-alerts/cpujan2021.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.71460
EPSS Score 0.00323
Published At Nov. 24, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.