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====================================================================                   
Red Hat Security Advisory

Synopsis:          Important: libX11 security update
Advisory ID:       RHSA-2020:4908-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:4908
Issue date:        2020-11-04
Cross references:  RHSA-2020:65284-01
CVE Names:         CVE-2020-14363
====================================================================
1. Summary:

An update for libX11 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 (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

3. Description:

The libX11 packages contain the core X11 protocol client library.

Security Fix(es):

* libX11: integer overflow leads to double free in locale handling
(CVE-2020-14363)

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/):

1872473 - CVE-2020-14363 libX11: integer overflow leads to double free in locale handling

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
libX11-1.6.7-3.el7_9.src.rpm

noarch:
libX11-common-1.6.7-3.el7_9.noarch.rpm

x86_64:
libX11-1.6.7-3.el7_9.i686.rpm
libX11-1.6.7-3.el7_9.x86_64.rpm
libX11-debuginfo-1.6.7-3.el7_9.i686.rpm
libX11-debuginfo-1.6.7-3.el7_9.x86_64.rpm
libX11-devel-1.6.7-3.el7_9.i686.rpm
libX11-devel-1.6.7-3.el7_9.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
libX11-1.6.7-3.el7_9.src.rpm

noarch:
libX11-common-1.6.7-3.el7_9.noarch.rpm

x86_64:
libX11-1.6.7-3.el7_9.i686.rpm
libX11-1.6.7-3.el7_9.x86_64.rpm
libX11-debuginfo-1.6.7-3.el7_9.i686.rpm
libX11-debuginfo-1.6.7-3.el7_9.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
libX11-debuginfo-1.6.7-3.el7_9.i686.rpm
libX11-debuginfo-1.6.7-3.el7_9.x86_64.rpm
libX11-devel-1.6.7-3.el7_9.i686.rpm
libX11-devel-1.6.7-3.el7_9.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
libX11-1.6.7-3.el7_9.src.rpm

noarch:
libX11-common-1.6.7-3.el7_9.noarch.rpm

ppc64:
libX11-1.6.7-3.el7_9.ppc.rpm
libX11-1.6.7-3.el7_9.ppc64.rpm
libX11-debuginfo-1.6.7-3.el7_9.ppc.rpm
libX11-debuginfo-1.6.7-3.el7_9.ppc64.rpm
libX11-devel-1.6.7-3.el7_9.ppc.rpm
libX11-devel-1.6.7-3.el7_9.ppc64.rpm

ppc64le:
libX11-1.6.7-3.el7_9.ppc64le.rpm
libX11-debuginfo-1.6.7-3.el7_9.ppc64le.rpm
libX11-devel-1.6.7-3.el7_9.ppc64le.rpm

s390x:
libX11-1.6.7-3.el7_9.s390.rpm
libX11-1.6.7-3.el7_9.s390x.rpm
libX11-debuginfo-1.6.7-3.el7_9.s390.rpm
libX11-debuginfo-1.6.7-3.el7_9.s390x.rpm
libX11-devel-1.6.7-3.el7_9.s390.rpm
libX11-devel-1.6.7-3.el7_9.s390x.rpm

x86_64:
libX11-1.6.7-3.el7_9.i686.rpm
libX11-1.6.7-3.el7_9.x86_64.rpm
libX11-debuginfo-1.6.7-3.el7_9.i686.rpm
libX11-debuginfo-1.6.7-3.el7_9.x86_64.rpm
libX11-devel-1.6.7-3.el7_9.i686.rpm
libX11-devel-1.6.7-3.el7_9.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
libX11-1.6.7-3.el7_9.src.rpm

noarch:
libX11-common-1.6.7-3.el7_9.noarch.rpm

x86_64:
libX11-1.6.7-3.el7_9.i686.rpm
libX11-1.6.7-3.el7_9.x86_64.rpm
libX11-debuginfo-1.6.7-3.el7_9.i686.rpm
libX11-debuginfo-1.6.7-3.el7_9.x86_64.rpm
libX11-devel-1.6.7-3.el7_9.i686.rpm
libX11-devel-1.6.7-3.el7_9.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-2020-14363
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2020 Red Hat, Inc.
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