Observable discrepancy in Wildfly Elytron - CVE-2021-3642

Vulnerability identifier: #VU59661

CSH Severity: Low

CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-3642

CWE-ID: CWE-203

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to possibility of a timing attack against the ScramServer. A remote attacker can gain access to potentially sensitive information. 

Wildfly Elytron
Red Hat Process Automation Manager (formerly JBoss BPM Suite)
Red Hat Single Sign-On
JBoss Data Grid

Install updates from vendor's website.

Wildfly Elytron - addressed in versions 1.10.14, 1.15.5, 1.16.1
Red Hat Process Automation Manager (formerly JBoss BPM Suite) - update to 7.13.0
Red Hat Single Sign-On - update to 7.4.10
JBoss Data Grid - update to 8.3.0

• https://bugzilla.redhat.com/show_bug.cgi?id=1981407

• Information disclosure in Wildfly Elytron
• Multiple vulnerabilities in Red Hat Process Automation Manager
• Multiple vulnerabilities in Red Hat Single Sign-On 7.4
• Multiple vulnerabilities in JBoss Data Grid 8.3