CVE-2021-2356: fedoraproject fedora
Vulnerability summary
CVE-2021-2356 is a medium (CVSS 5.9) vulnerability in fedoraproject fedora. EPSS estimates a 2.20% chance of exploitation in the next 30 days, higher than 82.2% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 20-07-2021PublishedVulnerability first disclosed.
- 26-09-2024Last modifiedVulnerability information updated.
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).
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
- OSV · ChainguardEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
- NVDNIST5.9MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
EPSS trend
Probability
2.20%
Chance of exploitation in the next 30 days
Percentile
82%
Versus all other CVEs
30-day change
0.00 pp
From 2.20% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Chainguard6 products
- mysql-8.0< 8.0.38-r0
- mysql-8.0-client< 8.0.38-r0
- mysql-8.0-dev< 8.0.38-r0
- mysql-8.0-iamguarded-compat< 8.0.38-r0
- mysql-8.0-oci-entrypoint< 8.0.38-r0
Ubuntu4 products
- mysql-5.5All versions (No fix recorded)
- mysql-8.0< 8.0.26-0ubuntu0.20.04.2 | < 8.0.26-0ubuntu1
- percona-server-5.6All versions (No fix recorded)
- percona-xtradb-cluster-5.6All versions (No fix recorded)
Fedoraproject1 product
- fedoraEOL33 | 34
Netapp1 product
Oracle1 product
- mysql≥ 5.0.0, ≤ 5.7.34 | ≥ 8.0.0, ≤ 8.0.25
Oracle corporation1 product
- mysql server5.7.34 and prior | 8.0.25 and prior
6 vendors · 14 products