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Gentoo Linux Security Advisory                           GLSA 202101-33
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                                           https://security.gentoo.org/
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 Severity: High
    Title: sudo: Multiple vulnerabilities
     Date: January 26, 2021
     Bugs: #764986, #767364
       ID: 202101-33

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Synopsis
=======
Multiple vulnerabilities have been found in sudo, the worst of which
could result in privilege escalation.

Background
=========
sudo (su "do") allows a system administrator to delegate authority to
give certain users (or groups of users) the ability to run some (or
all) commands as root or another user while providing an audit trail of
the commands and their arguments.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-admin/sudo              < 1.9.5_p2               >= 1.9.5_p2

Description
==========
Multiple vulnerabilities have been discovered in sudo. Please review
the CVE identifiers referenced below for details.

Impact
=====
Local users are able to gain unauthorized privileges on the system or
determine the existence of files.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All sudo users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-admin/sudo-1.9.5_p2"

References
=========
[ 1 ] CVE-2021-23239
      https://nvd.nist.gov/vuln/detail/CVE-2021-23239
[ 2 ] CVE-2021-23240
      https://nvd.nist.gov/vuln/detail/CVE-2021-23240
[ 3 ] CVE-2021-3156
      https://nvd.nist.gov/vuln/detail/CVE-2021-3156
[ 4 ] Upstream advisory (CVE-2020-23240)
      [ 5 ] Upstream advisory (CVE-2021-3156)
      
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 https://security.gentoo.org/glsa/202101-33

Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
======
Copyright 2021 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5/

Gentoo: GLSA-202101-33: sudo: Multiple vulnerabilities

Multiple vulnerabilities have been found in sudo, the worst of which could result in privilege escalation.

Summary

Multiple vulnerabilities have been discovered in sudo. Please review the CVE identifiers referenced below for details.

Resolution

All sudo users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-admin/sudo-1.9.5_p2"

References


[ 1 ] CVE-2021-23239 https://nvd.nist.gov/vuln/detail/CVE-2021-23239 [ 2 ] CVE-2021-23240 https://nvd.nist.gov/vuln/detail/CVE-2021-23240 [ 3 ] CVE-2021-3156 https://nvd.nist.gov/vuln/detail/CVE-2021-3156 [ 4 ] Upstream advisory (CVE-2020-23240) [ 5 ] Upstream advisory (CVE-2021-3156)

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202101-33

Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity
Severity: High
Title: sudo: Multiple vulnerabilities
Date: January 26, 2021
Bugs: #764986, #767364
ID: 202101-33

Synopsis

Multiple vulnerabilities have been found in sudo, the worst of which could result in privilege escalation.

Background

sudo (su "do") allows a system administrator to delegate authority to give certain users (or groups of users) the ability to run some (or all) commands as root or another user while providing an audit trail of the commands and their arguments.

Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-admin/sudo < 1.9.5_p2 >= 1.9.5_p2

Impact

===== Local users are able to gain unauthorized privileges on the system or determine the existence of files.

Workaround

There is no known workaround at this time.

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