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Red Hat Security Advisory 2018-2097-01

Red Hat Security Advisory 2018-2097-01
Posted Jun 27, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-2097-01 - 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. Issues addressed include a code execution vulnerability.

tags | advisory, code execution
systems | linux, redhat
advisories | CVE-2018-1000156
MD5 | 25a39dba28729ed6617399de4b3b2a51

Red Hat Security Advisory 2018-2097-01

Change Mirror Download
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=====================================================================
Red Hat Security Advisory

Synopsis: Important: patch security update
Advisory ID: RHSA-2018:2097-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:2097
Issue date: 2018-06-27
Cross references: https://access.redhat.com/security/updates/classification/#important
CVE Names: CVE-2018-1000156
=====================================================================

1. Summary:

An update for patch is now available for Red Hat Enterprise Linux 6.4
Advanced Update Support.

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 Server AUS (v. 6.4) - 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: Malicious patch files cause ed to execute arbitrary commands
(CVE-2018-1000156)

For more details about the security issue(s), including the impact, a CVSS
score, 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/):

1564326 - CVE-2018-1000156 patch: Malicious patch files cause ed to execute arbitrary commands

6. Package List:

Red Hat Enterprise Linux Server AUS (v. 6.4):

Source:
patch-2.6-8.el6_4.src.rpm

x86_64:
patch-2.6-8.el6_4.x86_64.rpm
patch-debuginfo-2.6-8.el6_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-2018-1000156
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 2018 Red Hat, Inc.
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