Resource management error in IBM Tivoli Application Dependency Discovery Manager

Published: 2023-06-27
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-3733
Exploitation vector Network
Public exploit N/A
Vulnerable software
IBM Tivoli Application Dependency Discovery Manager
Web applications / Other software

Vendor IBM Corporation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Resource management error

EUVDB-ID: #VU58295

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3733

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources within the application within the AbstractBasicAuthHandler class in urllib. A remote attacker with control over the server can perform regular expression denial of service attack during authentication.


Install update from vendor's website.

Vulnerable software versions

IBM Tivoli Application Dependency Discovery Manager: -

External links

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.