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Red Hat Security Advisory 2020-0487-01

Red Hat Security Advisory 2020-0487-01
Posted Feb 13, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0487-01 - The sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root. Issues addressed include a buffer overflow vulnerability.

tags | advisory, overflow, root
systems | linux, redhat
advisories | CVE-2019-18634
MD5 | 612c85a9d2cb652539696e8f19c95fbc

Red Hat Security Advisory 2020-0487-01

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

Synopsis: Important: sudo security update
Advisory ID: RHSA-2020:0487-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:0487
Issue date: 2020-02-13
CVE Names: CVE-2019-18634
=====================================================================

1. Summary:

An update for sudo is now available for Red Hat Enterprise Linux 8.

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 BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64

3. Description:

The sudo packages contain the sudo utility which allows system
administrators to provide certain users with the permission to execute
privileged commands, which are used for system management purposes, without
having to log in as root.

Security Fix(es):

* sudo: Stack based buffer overflow when pwfeedback is enabled
(CVE-2019-18634)

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/):

1796944 - CVE-2019-18634 sudo: Stack based buffer overflow when pwfeedback is enabled

6. Package List:

Red Hat Enterprise Linux BaseOS (v. 8):

Source:
sudo-1.8.25p1-8.el8_1.1.src.rpm

aarch64:
sudo-1.8.25p1-8.el8_1.1.aarch64.rpm
sudo-debuginfo-1.8.25p1-8.el8_1.1.aarch64.rpm
sudo-debugsource-1.8.25p1-8.el8_1.1.aarch64.rpm

ppc64le:
sudo-1.8.25p1-8.el8_1.1.ppc64le.rpm
sudo-debuginfo-1.8.25p1-8.el8_1.1.ppc64le.rpm
sudo-debugsource-1.8.25p1-8.el8_1.1.ppc64le.rpm

s390x:
sudo-1.8.25p1-8.el8_1.1.s390x.rpm
sudo-debuginfo-1.8.25p1-8.el8_1.1.s390x.rpm
sudo-debugsource-1.8.25p1-8.el8_1.1.s390x.rpm

x86_64:
sudo-1.8.25p1-8.el8_1.1.x86_64.rpm
sudo-debuginfo-1.8.25p1-8.el8_1.1.x86_64.rpm
sudo-debugsource-1.8.25p1-8.el8_1.1.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-2019-18634
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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