2021-2425 | Oracle MySQL Server Optimizer denial of service
|CVSS Meta Temp Score
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|CTI Interest Score
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A vulnerability was found in Oracle MySQL Server up to 8.0.25 (Database Software) and classified as critical. Affected by this issue is an unknown function of the component Optimizer. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. Impacted is availability. CVE summarizes:
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.25 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).
The weakness was released 07/20/2021 as Oracle Critical Patch Update Advisory – July 2021. The advisory is available at oracle.com. This vulnerability is handled as CVE-2021-2425 since 12/09/2020. The exploitation is known to be easy. The attack may be launched remotely. The exploitation needs additional levels of successful authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/25/2021). This vulnerability is assigned to T1499 by the MITRE ATT&CK project.
Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.7
NVD Base Score: 🔒
Status: Not defined
12/09/2020 CVE assigned
07/20/2021 +222 days Advisory disclosed
07/20/2021 +0 days Countermeasure disclosed
07/21/2021 +1 days VulDB entry created
07/25/2021 +4 days VulDB last updateVendor: https://www.oracle.com
Created: 07/21/2021 10:37
Updated: 07/25/2021 07:52
Changes: (8) vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai source_cve_cna vulnerability_cvss2_nvd_basescore
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