ALAS2-2023-2030

Related Vulnerabilities: CVE-2021-21342  

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 a server-side forgery request. 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. (CVE-2021-21342)

ALAS2-2023-2030


Amazon Linux 2 Security Advisory: ALAS-2023-2030
Advisory Release Date: 2023-04-27 18:37 Pacific
Advisory Updated Date: 2023-05-02 19:19 Pacific
Severity: Important

Issue Overview:

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 a server-side forgery request. 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. (CVE-2021-21342)


Affected Packages:

xstream


Issue Correction:
Run yum update xstream to update your system.

New Packages:
noarch:
    xstream-1.3.1-16.amzn2.0.2.noarch
    xstream-javadoc-1.3.1-16.amzn2.0.2.noarch

src:
    xstream-1.3.1-16.amzn2.0.2.src