Vulnerability identifier: #VU64640

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-4135

CWE-ID: CWE-401

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
IBM DB2
Server applications / Database software

Vendor: IBM Corporation

Description
The vulnerability allows a remote attacker to perform a DoS attack on the target system.

The vulnerability exists due memory leak. A remote attacker can send specially crafted packets to cause a denial of service from excessive memory usage.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

IBM DB2: 9.7 - 9.7.0.11, 10.1 - 10.1.0.5, 11.1 FP1 - 11.1.4.7, 11.5

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External links
http://exchange.xforce.ibmcloud.com/vulnerabilities/173806
http://www.ibm.com/support/pages/node/2876307
http://security.netapp.com/advisory/ntap-20210108-0001/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.