CVE-2020-4355

MediumCVSS 5.3/10Last modified Jun 17, 2026

Description

IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 is vulnerable to a denial of service, caused by improper handling of Secure Sockets Layer (SSL) renegotiation requests. By sending specially-crafted requests, a remote attacker could exploit this vulnerability to increase the resource usage on the system. IBM X-Force ID: 178507.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected software

Vendor	Product	Versions
IBM	DB2 for Linux- UNIX and Windows	9.7; 10.1; 10.5; 11.1; 11.5

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/178507VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6242350Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/178507VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6242350Patch, Vendor Advisory

Timeline

Published: Jul 1, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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