Multiple vulnerabilities in IBM Event Streams

Published: 2022-11-01

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-38561 CVE-2021-43565
CWE-ID	CWE-125 CWE-20
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Event Streams Client/Desktop applications / Other client software
Vendor	IBM Corporation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU65006

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-38561

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition. A remote attacker can pass specially crafted input to the application, trigger an out-of-bounds read error and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Event Streams: 10.0.0 - 11.0.4

External links

http://www.ibm.com/blogs/psirt/security-bulletin-vulnerabilities-in-golang-go-affect-ibm-event-streams-cve-2021-38561-and-cve-2021-43565/
http://www.ibm.com/support/pages/node/6833168

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.

2) Input validation error

EUVDB-ID: #VU64805