CVE-2021-2389
MySQL memcached Plugin Integer Underflow Remote Code Execution Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 5.7.34 and prior and 8.0.25 and prior. Difficult to exploit vulnerability allows unauthenticated 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 5.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).
Una vulnerabilidad en el producto MySQL Server de Oracle MySQL (componente: InnoDB). Las versiones compatibles que están afectadas son 5.7.34 y anteriores y 8.0.25 y anteriores. Una vulnerabilidad difícil de explotar permite a un atacante no autenticado con acceso a la red por medio de múltiples protocolos comprometer a MySQL Server. Los ataques con éxito de esta vulnerabilidad pueden resultar en una capacidad no autorizada para causar una suspensión o bloqueo repetible frecuentemente (DOS completa) de MySQL Server. CVSS 3.1 Puntuación Base 5.9 (Impactos en la Disponibilidad). Vector CVSS: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
This vulnerability allows remote attackers to execute arbitrary code on affected installations of MySQL. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the processing of Append and Prepend commands in the memcached plugin. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the service account.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-12-09 CVE Reserved
- 2021-07-20 CVE Published
- 2024-07-08 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (7)
| URL | Tag | Source |
|---|---|---|
| https://security.netapp.com/advisory/ntap-20210723-0001 | Third Party Advisory |
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| https://www.zerodayinitiative.com/advisories/ZDI-21-880 | Third Party Advisory |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Oracle Search vendor "Oracle" | Mysql Server Search vendor "Oracle" for product "Mysql Server" | >= 5.7.0 <= 5.7.34 Search vendor "Oracle" for product "Mysql Server" and version " >= 5.7.0 <= 5.7.34" | - |
Affected
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| Oracle Search vendor "Oracle" | Mysql Server Search vendor "Oracle" for product "Mysql Server" | >= 8.0.0 <= 8.0.25 Search vendor "Oracle" for product "Mysql Server" and version " >= 8.0.0 <= 8.0.25" | - |
Affected
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| Netapp Search vendor "Netapp" | Active Iq Unified Manager Search vendor "Netapp" for product "Active Iq Unified Manager" | - | vmware_vsphere |
Affected
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| Netapp Search vendor "Netapp" | Active Iq Unified Manager Search vendor "Netapp" for product "Active Iq Unified Manager" | - | windows |
Affected
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| Netapp Search vendor "Netapp" | Oncommand Insight Search vendor "Netapp" for product "Oncommand Insight" | - | - |
Affected
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| Netapp Search vendor "Netapp" | Oncommand Workflow Automation Search vendor "Netapp" for product "Oncommand Workflow Automation" | - | - |
Affected
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| Netapp Search vendor "Netapp" | Snapcenter Search vendor "Netapp" for product "Snapcenter" | - | - |
Affected
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| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 34 Search vendor "Fedoraproject" for product "Fedora" and version "34" | - |
Affected
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| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 35 Search vendor "Fedoraproject" for product "Fedora" and version "35" | - |
Affected
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| Mariadb Search vendor "Mariadb" | Mariadb Search vendor "Mariadb" for product "Mariadb" | >= 10.2.0 < 10.2.40 Search vendor "Mariadb" for product "Mariadb" and version " >= 10.2.0 < 10.2.40" | - |
Affected
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| Mariadb Search vendor "Mariadb" | Mariadb Search vendor "Mariadb" for product "Mariadb" | >= 10.3.0 < 10.3.31 Search vendor "Mariadb" for product "Mariadb" and version " >= 10.3.0 < 10.3.31" | - |
Affected
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| Mariadb Search vendor "Mariadb" | Mariadb Search vendor "Mariadb" for product "Mariadb" | >= 10.4.0 < 10.4.21 Search vendor "Mariadb" for product "Mariadb" and version " >= 10.4.0 < 10.4.21" | - |
Affected
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| Mariadb Search vendor "Mariadb" | Mariadb Search vendor "Mariadb" for product "Mariadb" | >= 10.5.0 < 10.5.12 Search vendor "Mariadb" for product "Mariadb" and version " >= 10.5.0 < 10.5.12" | - |
Affected
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| Mariadb Search vendor "Mariadb" | Mariadb Search vendor "Mariadb" for product "Mariadb" | >= 10.6.0 < 10.6.4 Search vendor "Mariadb" for product "Mariadb" and version " >= 10.6.0 < 10.6.4" | - |
Affected
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