2021-2339 | Oracle MySQL Server DDL denial of service
|CVSS Meta Temp Score
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|Current Exploit Price (≈)
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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). It has been classified as critical. This affects an unknown code of the component DDL. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. This is going to have an impact on availability. The summary by CVE is:
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DDL). 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 shared 07/20/2021 as Oracle Critical Patch Update Advisory – July 2021. The advisory is shared at oracle.com. This vulnerability is uniquely identified as CVE-2021-2339 since 12/09/2020. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/24/2021). MITRE ATT&CK project uses the attack technique T1499 for this issue.
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
VulDB Base Score: 4.9
VulDB Temp Score: 4.7
VulDB Vector: 🔒
VulDB Reliability: 🔍
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Denial of service
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
Active Actors: 🔍
Active APT Groups: 🔍Recommended: Upgrade
Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒
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
07/24/2021 +3 days VulDB last updateVendor: https://www.oracle.com
Advisory: Oracle Critical Patch Update Advisory – July 2021
CVE: CVE-2021-2339 (🔒)
Created: 07/21/2021 10:37
Updated: 07/24/2021 22:13
Changes: (1) source_cve_cna
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