Multiple Vulnerabilities in IBM WebSphere Application Server

Published: 2021-12-03 | Updated: 2022-03-20

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-35578 CVE-2021-35564
CWE-ID	CWE-20
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	IBM WebSphere Application Server Server applications / Application servers
Vendor	IBM Corporation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper input validation

EUVDB-ID: #VU57495

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-2021-35578

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The vulnerability exists due to improper input validation within the JSSE component in Oracle GraalVM Enterprise Edition when processing TLS 1.3 ClientHello packets. A remote non-authenticated attacker can exploit this vulnerability to perform service disruption.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM WebSphere Application Server: before 8.5.5.21

External links

http://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-ibm-java-sdk-affect-websphere-application-server-october-2021-cpu/
http://www.ibm.com/support/pages/node/6520468

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) Improper input validation

EUVDB-ID: #VU57490