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Red Hat Security Advisory
Synopsis: Important: patch security update
Advisory ID: RHSA-2019:2964-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:2964
Issue date: 2019-10-03
CVE Names: CVE-2018-20969 CVE-2019-13638
=====================================================================
1. Summary:
An update for patch 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) – x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) – x86_64
Red Hat Enterprise Linux Server (v. 7) – ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) – x86_64
3. Description:
The patch program applies diff files to originals. The diff command is used
to compare an original to a changed file. Diff lists the changes made to
the file. A person who has the original file can then use the patch command
with the diff file to add the changes to their original file (patching the
file).
Security Fix(es):
* patch: do_ed_script in pch.c does not block strings beginning with a !
character (CVE-2018-20969)
* patch: OS shell command injection when processing crafted patch files
(CVE-2019-13638)
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/):
1733916 – CVE-2019-13638 patch: OS shell command injection when processing crafted patch files
1746672 – CVE-2018-20969 patch: do_ed_script in pch.c does not block strings beginning with a ! character
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source:
patch-2.7.1-12.el7_7.src.rpm
x86_64:
patch-2.7.1-12.el7_7.x86_64.rpm
patch-debuginfo-2.7.1-12.el7_7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
patch-2.7.1-12.el7_7.src.rpm
x86_64:
patch-2.7.1-12.el7_7.x86_64.rpm
patch-debuginfo-2.7.1-12.el7_7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
patch-2.7.1-12.el7_7.src.rpm
ppc64:
patch-2.7.1-12.el7_7.ppc64.rpm
patch-debuginfo-2.7.1-12.el7_7.ppc64.rpm
ppc64le:
patch-2.7.1-12.el7_7.ppc64le.rpm
patch-debuginfo-2.7.1-12.el7_7.ppc64le.rpm
s390x:
patch-2.7.1-12.el7_7.s390x.rpm
patch-debuginfo-2.7.1-12.el7_7.s390x.rpm
x86_64:
patch-2.7.1-12.el7_7.x86_64.rpm
patch-debuginfo-2.7.1-12.el7_7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
patch-2.7.1-12.el7_7.src.rpm
x86_64:
patch-2.7.1-12.el7_7.x86_64.rpm
patch-debuginfo-2.7.1-12.el7_7.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-2018-20969
https://access.redhat.com/security/cve/CVE-2019-13638
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 2019 Red Hat, Inc.
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