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Red Hat Enterprise Linux: RHSA-2021-0162-01 Important: XStream RCE

red hat
Calendar Grey January 18, 2021
Dist Redhat Esm H88
Canonical unveils a critical patch for libxml, mitigating vulnerabilities linked to data leakage in Ubuntu Server.
An update for xstream is now available for Red Hat Enterprise Linux 7

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

XStream is a Java XML serialization library to serialize objects to and deserialize object from XML.
Security Fix(es):
* XStream: remote code execution due to insecure XML deserialization when relying on blocklists (CVE-2020-26217)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Topics%20covered

Topics Covered

security advisory security update update remote code execution security fix Red Hat Enterprise Linux important Red Hat Enterprise xstream

References

https://access.redhat.com/security/cve/CVE-2020-26217 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Client Optional (v. 7):
Source: xstream-1.3.1-12.el7_9.src.rpm
noarch: xstream-1.3.1-12.el7_9.noarch.rpm xstream-javadoc-1.3.1-12.el7_9.noarch.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
Source: xstream-1.3.1-12.el7_9.src.rpm
noarch: xstream-1.3.1-12.el7_9.noarch.rpm xstream-javadoc-1.3.1-12.el7_9.noarch.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
Source: xstream-1.3.1-12.el7_9.src.rpm
noarch: xstream-1.3.1-12.el7_9.noarch.rpm xstream-javadoc-1.3.1-12.el7_9.noarch.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
Source: xstream-1.3.1-12.el7_9.src.rpm
noarch: xstream-1.3.1-12.el7_9.noarch.rpm xstream-javadoc-1.3.1-12.el7_9.noarch.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:0162-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0162
Issue date: 2021-01-18

Topic

An update for xstream is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security update update remote code execution security fix Red Hat Enterprise Linux important Red Hat Enterprise xstream

Relevant Releases Architectures

Red Hat Enterprise Linux Client Optional (v. 7) - noarch

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch

Red Hat Enterprise Linux Server Optional (v. 7) - noarch

Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch

Bugs Fixed

1898907 - CVE-2020-26217 XStream: remote code execution due to insecure XML deserialization when relying on blocklists

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