Synopsis

Important: patch security update

Type/Severity

Security Advisory: Important

Topic

An update for patch is now available for Red Hat Enterprise Linux 7.2 Advanced Update Support, Red Hat Enterprise Linux 7.2 Telco Extended Update Support, and Red Hat Enterprise Linux 7.2 Update Services for SAP Solutions.

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.

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.

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

Affected Products

• Red Hat Enterprise Linux Server - AUS 7.2 x86_64
• Red Hat Enterprise Linux Server - TUS 7.2 x86_64
• Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.2 x86_64

Fixes

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

CVEs

• CVE-2018-1000156

References

• https://access.redhat.com/security/updates/classification/#important

Red Hat Enterprise Linux Server - AUS 7.2

SRPM
patch-2.7.1-10.el7_2.src.rpm	SHA-256: 1674972853d08aa6b8dbbe2871b49b3853ce13f05e6f03f31f111971105cbd32
x86_64
patch-2.7.1-10.el7_2.x86_64.rpm	SHA-256: 163e67b3a8c67019b4ed18d0d9d70ff105c05ff473049e0460f200903639aae0
patch-debuginfo-2.7.1-10.el7_2.x86_64.rpm	SHA-256: 08dc3d7a271a75d1dbf1df6126520cb6d64ee53faba156dc79a53e37b6036610

Red Hat Enterprise Linux Server - TUS 7.2

SRPM
patch-2.7.1-10.el7_2.src.rpm	SHA-256: 1674972853d08aa6b8dbbe2871b49b3853ce13f05e6f03f31f111971105cbd32
x86_64
patch-2.7.1-10.el7_2.x86_64.rpm	SHA-256: 163e67b3a8c67019b4ed18d0d9d70ff105c05ff473049e0460f200903639aae0
patch-debuginfo-2.7.1-10.el7_2.x86_64.rpm	SHA-256: 08dc3d7a271a75d1dbf1df6126520cb6d64ee53faba156dc79a53e37b6036610

Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.2

SRPM
patch-2.7.1-10.el7_2.src.rpm	SHA-256: 1674972853d08aa6b8dbbe2871b49b3853ce13f05e6f03f31f111971105cbd32
x86_64
patch-2.7.1-10.el7_2.x86_64.rpm	SHA-256: 163e67b3a8c67019b4ed18d0d9d70ff105c05ff473049e0460f200903639aae0
patch-debuginfo-2.7.1-10.el7_2.x86_64.rpm	SHA-256: 08dc3d7a271a75d1dbf1df6126520cb6d64ee53faba156dc79a53e37b6036610