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    RedHat: RHSA-2021-0088:01 Critical: thunderbird security update

    Date 13 Jan 2021
    187
    Posted By LinuxSecurity Advisories
    An update for thunderbird is now available for Red Hat Enterprise Linux 8.2 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which
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    =====================================================================
                       Red Hat Security Advisory
    
    Synopsis:          Critical: thunderbird security update
    Advisory ID:       RHSA-2021:0088-01
    Product:           Red Hat Enterprise Linux
    Advisory URL:      https://access.redhat.com/errata/RHSA-2021:0088
    Issue date:        2021-01-13
    CVE Names:         CVE-2020-16044 
    =====================================================================
    
    1. Summary:
    
    An update for thunderbird is now available for Red Hat Enterprise Linux 8.2
    Extended Update Support.
    
    Red Hat Product Security has rated this update as having a security impact
    of Critical. 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 AppStream EUS (v. 8.2) - aarch64, ppc64le, x86_64
    
    3. Description:
    
    Mozilla Thunderbird is a standalone mail and newsgroup client.
    
    This update upgrades Thunderbird to version 78.6.1.
    
    Security Fix(es):
    
    * Mozilla: Use-after-free write when handling a malicious COOKIE-ECHO SCTP
    chunk (CVE-2020-16044)
    
    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
    
    All running instances of Thunderbird must be restarted for the update to
    take effect.
    
    5. Bugs fixed (https://bugzilla.redhat.com/):
    
    1913503 - CVE-2020-16044 Mozilla: Use-after-free write when handling a malicious COOKIE-ECHO SCTP chunk
    
    6. Package List:
    
    Red Hat Enterprise Linux AppStream EUS (v. 8.2):
    
    Source:
    thunderbird-78.6.1-1.el8_2.src.rpm
    
    aarch64:
    thunderbird-78.6.1-1.el8_2.aarch64.rpm
    thunderbird-debuginfo-78.6.1-1.el8_2.aarch64.rpm
    thunderbird-debugsource-78.6.1-1.el8_2.aarch64.rpm
    
    ppc64le:
    thunderbird-78.6.1-1.el8_2.ppc64le.rpm
    thunderbird-debuginfo-78.6.1-1.el8_2.ppc64le.rpm
    thunderbird-debugsource-78.6.1-1.el8_2.ppc64le.rpm
    
    x86_64:
    thunderbird-78.6.1-1.el8_2.x86_64.rpm
    thunderbird-debuginfo-78.6.1-1.el8_2.x86_64.rpm
    thunderbird-debugsource-78.6.1-1.el8_2.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-2020-16044
    https://access.redhat.com/security/updates/classification/#critical
    
    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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