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    RedHat: RHSA-2020-3803:01 Moderate: bash security update

    Date
    217
    Posted By
    An update for bash is now available for Red Hat Enterprise Linux 7.4 Advanced Update Support, Red Hat Enterprise Linux 7.4 Telco Extended Update Support, and Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions.
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    =====================================================================
                       Red Hat Security Advisory
    
    Synopsis:          Moderate: bash security update
    Advisory ID:       RHSA-2020:3803-01
    Product:           Red Hat Enterprise Linux
    Advisory URL:      https://access.redhat.com/errata/RHSA-2020:3803
    Issue date:        2020-09-22
    CVE Names:         CVE-2019-9924 
    =====================================================================
    
    1. Summary:
    
    An update for bash is now available for Red Hat Enterprise Linux 7.4
    Advanced Update Support, Red Hat Enterprise Linux 7.4 Telco Extended Update
    Support, and Red Hat Enterprise Linux 7.4 Update Services for SAP
    Solutions.
    
    Red Hat Product Security has rated this update as having a security impact
    of Moderate. 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 Server AUS (v. 7.4) - x86_64
    Red Hat Enterprise Linux Server E4S (v. 7.4) - ppc64le, x86_64
    Red Hat Enterprise Linux Server Optional AUS (v. 7.4) - x86_64
    Red Hat Enterprise Linux Server Optional E4S (v. 7.4) - ppc64le, x86_64
    Red Hat Enterprise Linux Server Optional TUS (v. 7.4) - x86_64
    Red Hat Enterprise Linux Server TUS (v. 7.4) - x86_64
    
    3. Description:
    
    The bash packages provide Bash (Bourne-again shell), which is the default
    shell for Red Hat Enterprise Linux.
    
    Security Fix(es):
    
    * bash: BASH_CMD is writable in restricted bash shells (CVE-2019-9924)
    
    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/):
    
    1691774 - CVE-2019-9924 bash: BASH_CMD is writable in restricted bash shells
    
    6. Package List:
    
    Red Hat Enterprise Linux Server AUS (v. 7.4):
    
    Source:
    bash-4.2.46-30.el7_4.src.rpm
    
    x86_64:
    bash-4.2.46-30.el7_4.x86_64.rpm
    bash-debuginfo-4.2.46-30.el7_4.x86_64.rpm
    
    Red Hat Enterprise Linux Server E4S (v. 7.4):
    
    Source:
    bash-4.2.46-30.el7_4.src.rpm
    
    ppc64le:
    bash-4.2.46-30.el7_4.ppc64le.rpm
    bash-debuginfo-4.2.46-30.el7_4.ppc64le.rpm
    
    x86_64:
    bash-4.2.46-30.el7_4.x86_64.rpm
    bash-debuginfo-4.2.46-30.el7_4.x86_64.rpm
    
    Red Hat Enterprise Linux Server TUS (v. 7.4):
    
    Source:
    bash-4.2.46-30.el7_4.src.rpm
    
    x86_64:
    bash-4.2.46-30.el7_4.x86_64.rpm
    bash-debuginfo-4.2.46-30.el7_4.x86_64.rpm
    
    Red Hat Enterprise Linux Server Optional AUS (v. 7.4):
    
    x86_64:
    bash-debuginfo-4.2.46-30.el7_4.x86_64.rpm
    bash-doc-4.2.46-30.el7_4.x86_64.rpm
    
    Red Hat Enterprise Linux Server Optional E4S (v. 7.4):
    
    ppc64le:
    bash-debuginfo-4.2.46-30.el7_4.ppc64le.rpm
    bash-doc-4.2.46-30.el7_4.ppc64le.rpm
    
    x86_64:
    bash-debuginfo-4.2.46-30.el7_4.x86_64.rpm
    bash-doc-4.2.46-30.el7_4.x86_64.rpm
    
    Red Hat Enterprise Linux Server Optional TUS (v. 7.4):
    
    x86_64:
    bash-debuginfo-4.2.46-30.el7_4.x86_64.rpm
    bash-doc-4.2.46-30.el7_4.x86_64.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-2019-9924
    https://access.redhat.com/security/updates/classification/#moderate
    
    8. Contact:
    
    The Red Hat security contact is . More contact
    details at https://access.redhat.com/security/team/contact/
    
    Copyright 2020 Red Hat, Inc.
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