CVE-2020-4355

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.

5.3

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 3.0 •

CVSS 2.0 •

EPSS 0.74% Top 30%

Vendor Advisory ibmcloud.com Vendor Advisory ibm.com

Affected: IBM DB2 for Linux- UNIX and Windows

References

Link	Tags
https://www.ibm.com/support/pages/node/6242350	patch vendor advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/178507	vdb entry vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-4355?: CVE-2020-4355 has been scored as a medium severity vulnerability.
How to fix CVE-2020-4355?: To fix CVE-2020-4355, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-4355 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2020-4355 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-4355?: CVE-2020-4355 affects IBM DB2 for Linux- UNIX and Windows.

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