Linux Security
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    RedHat: RHSA-2021-0162:01 Important: xstream security update

    Date 18 Jan 2021
    242
    Posted By LinuxSecurity Advisories
    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 impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability
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    =====================================================================
                       Red Hat Security Advisory
    
    Synopsis:          Important: xstream security update
    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
    CVE Names:         CVE-2020-26217 
    =====================================================================
    
    1. Summary:
    
    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 impact
    of Important. A Common Vulnerability Scoring System (CVSS) base score,
    which gives a detailed severity rating, is available for each vulnerability
    from the CVE link(s) in the References section.
    
    2. 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
    
    3. Description:
    
    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.
    
    4. 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
    
    5. Bugs fixed (https://bugzilla.redhat.com/):
    
    1898907 - CVE-2020-26217 XStream: remote code execution due to insecure XML deserialization when relying on blocklists
    
    6. 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/
    
    7. References:
    
    https://access.redhat.com/security/cve/CVE-2020-26217
    https://access.redhat.com/security/updates/classification/#important
    
    8. Contact:
    
    The Red Hat security contact is . More contact
    details at https://access.redhat.com/security/team/contact/
    
    Copyright 2021 Red Hat, Inc.
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