XStream can cause a Denial of Service
CVE-2021-39140

6.3MEDIUM

Key Information:

Vendor

X-stream

Status
Vendor
CVE Published:
23 August 2021

What is CVE-2021-39140?

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.

Affected Version(s)

xstream < 1.4.18

References

CVSS V3.1

Score:
6.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2021-39140 : XStream can cause a Denial of Service