Vulnerabilities > CVE-2021-39140 - Infinite Loop vulnerability in multiple products

Summary

XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.

Vulnerable Configurations

Common Weakness Enumeration (CWE)

• CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

References