Deserialization of Untrusted Data Affecting xstream-javadoc package, versions <0:1.3.1-13.amzn2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.69% (80th percentile)

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  • Snyk IDSNYK-AMZN2-XSTREAMJAVADOC-6148887
  • published10 Jan 2024
  • disclosed23 Mar 2021

Introduced: 23 Mar 2021

CVE-2021-21343  (opens in a new tab)
CWE-502  (opens in a new tab)
CWE-552  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 xstream-javadoc to version 0:1.3.1-13.amzn2 or higher.
This issue was patched in ALAS2-2021-1645.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xstream-javadoc package and not the xstream-javadoc package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability where the processed stream at unmarshalling time contains type information to recreate the formerly written objects. XStream creates therefore new instances based on these type information. An attacker can manipulate the processed input stream and replace or inject objects, that result in the deletion of a file on the local host. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.

References

CVSS Scores

version 3.1