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

Synopsis:          Important: sudo security update
Advisory ID:       RHSA-2021:0220-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:0220
Issue date:        2021-01-26
CVE Names:         CVE-2021-3156 
====================================================================
1. Summary:

An update for sudo is now available for Red Hat Enterprise Linux 8.1
Extended 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 BaseOS EUS (v. 8.1) - 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: Heap buffer overflow in argument parsing (CVE-2021-3156)

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/):

1917684 - CVE-2021-3156 sudo: Heap buffer overflow in argument parsing

6. Package List:

Red Hat Enterprise Linux BaseOS EUS (v. 8.1):

Source:
sudo-1.8.25p1-8.el8_1.2.src.rpm

aarch64:
sudo-1.8.25p1-8.el8_1.2.aarch64.rpm
sudo-debuginfo-1.8.25p1-8.el8_1.2.aarch64.rpm
sudo-debugsource-1.8.25p1-8.el8_1.2.aarch64.rpm

ppc64le:
sudo-1.8.25p1-8.el8_1.2.ppc64le.rpm
sudo-debuginfo-1.8.25p1-8.el8_1.2.ppc64le.rpm
sudo-debugsource-1.8.25p1-8.el8_1.2.ppc64le.rpm

s390x:
sudo-1.8.25p1-8.el8_1.2.s390x.rpm
sudo-debuginfo-1.8.25p1-8.el8_1.2.s390x.rpm
sudo-debugsource-1.8.25p1-8.el8_1.2.s390x.rpm

x86_64:
sudo-1.8.25p1-8.el8_1.2.x86_64.rpm
sudo-debuginfo-1.8.25p1-8.el8_1.2.x86_64.rpm
sudo-debugsource-1.8.25p1-8.el8_1.2.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-2021-3156
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/RHSB-2021-002

8. Contact:

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

Copyright 2021 Red Hat, Inc.
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RedHat: RHSA-2021-0220:01 Important: sudo security update

An update for sudo is now available for Red Hat Enterprise Linux 8.1 Extended Update Support

Summary

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: Heap buffer overflow in argument parsing (CVE-2021-3156)
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.



Summary


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

References

https://access.redhat.com/security/cve/CVE-2021-3156 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/RHSB-2021-002

Package List

Red Hat Enterprise Linux BaseOS EUS (v. 8.1):
Source: sudo-1.8.25p1-8.el8_1.2.src.rpm
aarch64: sudo-1.8.25p1-8.el8_1.2.aarch64.rpm sudo-debuginfo-1.8.25p1-8.el8_1.2.aarch64.rpm sudo-debugsource-1.8.25p1-8.el8_1.2.aarch64.rpm
ppc64le: sudo-1.8.25p1-8.el8_1.2.ppc64le.rpm sudo-debuginfo-1.8.25p1-8.el8_1.2.ppc64le.rpm sudo-debugsource-1.8.25p1-8.el8_1.2.ppc64le.rpm
s390x: sudo-1.8.25p1-8.el8_1.2.s390x.rpm sudo-debuginfo-1.8.25p1-8.el8_1.2.s390x.rpm sudo-debugsource-1.8.25p1-8.el8_1.2.s390x.rpm
x86_64: sudo-1.8.25p1-8.el8_1.2.x86_64.rpm sudo-debuginfo-1.8.25p1-8.el8_1.2.x86_64.rpm sudo-debugsource-1.8.25p1-8.el8_1.2.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/


Severity
Advisory ID: RHSA-2021:0220-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0220
Issued Date: : 2021-01-26
CVE Names: CVE-2021-3156

Topic

An update for sudo is now available for Red Hat Enterprise Linux 8.1Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.


Topic


 

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS EUS (v. 8.1) - aarch64, ppc64le, s390x, x86_64


Bugs Fixed

1917684 - CVE-2021-3156 sudo: Heap buffer overflow in argument parsing


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