Vulnerability · Published Jul 20, 2021 · Assigned by oracle
CVE-2021-2356
Medium 5.9
In plain English
A medium-severity security flaw in MySQL Server from Oracle Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.2% (higher than 83% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Replication). Supported versions that are affected are 5.7.34 and prior and 8.0.25 and prior. Difficult to exploit 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 as well as unauthorized update, insert or delete access to some of MySQL Server accessible data. CVSS 3.1 Base Score 5.9 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | mysql-8.0 | 8.0.26-0ubuntu1 | UBUNTU-CVE-2021-2356 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Oracle Corporation | MySQL Server | 5.7.34 and prior8.0.25 and prior |
References
- https://www.oracle.com/security-alerts/cpujul2021.html x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20210723-0001/ x_refsource_CONFIRM
- FEDORA-2021-dc4299a8d0 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-df40c41094 vendor-advisory, x_refsource_FEDORA