CVE-2020-5024

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-03-11 · updated 2026-06-17

Description

IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow an unauthenticated attacker to cause a denial of service due a hang in the SSL handshake response. IBM X-Force ID: 193660.

Affected products

IBM Db2 for Linux, UNIX and Windows: from 11.1.0.0 before 11.1.4.6; from 11.5 before 11.5.5.0; 9.7, 9.7-fp1, 9.7-fp10, 9.7-fp2, 9.7-fp3, 9.7-fp3a (+25) — fixed in 11.1.4.6, 11.5.5.0
OnCommand Insight: all versions

How to fix

Upgrade to a fixed version: IBM Db2 for Linux, UNIX and Windows 11.1.4.6, 11.5.5.0. Check the vendor advisory for mitigations.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/193660
https://security.netapp.com/advisory/ntap-20210409-0003/
https://www.ibm.com/support/pages/node/6427861
https://exchange.xforce.ibmcloud.com/vulnerabilities/193660
https://security.netapp.com/advisory/ntap-20210409-0003/
https://www.ibm.com/support/pages/node/6427861

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