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Gentoo Linux Security Advisory 202211-08

Gentoo Linux Security Advisory 202211-08
Posted Nov 22, 2022
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202211-8 - A vulnerability has been discovered in sudo which could result in denial of service. Versions less than 1.9.12-r1 are affected.

tags | advisory, denial of service
systems | linux, gentoo
advisories | CVE-2022-43995
SHA-256 | c00e7625b8febf3de6309da5a800903e0cd7b3fdd24b44ffde5184022c51e8a0

Gentoo Linux Security Advisory 202211-08

Change Mirror Download
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Gentoo Linux Security Advisory GLSA 202211-08
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https://security.gentoo.org/
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Severity: Normal
Title: sudo: Heap-Based Buffer Overread
Date: November 22, 2022
Bugs: #879209
ID: 202211-08

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Synopsis
=======
A vulnerability has been discovered in sudo which could result in denial
of service.

Background
=========
sudo allows a system administrator to give users the ability to run
commands as other users.

Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-admin/sudo < 1.9.12-r1 >= 1.9.12-r1

Description
==========
In certain password input handling, sudo incorrectly assumes the
password input is at least nine bytes in size, leading to a heap buffer
overread.

Impact
=====
In the worst case, the heap buffer overread can result in the denial of
service of the sudo process.

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-1.9.12-r1"

References
=========
[ 1 ] CVE-2022-43995
https://nvd.nist.gov/vuln/detail/CVE-2022-43995

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202211-08

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 2022 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
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