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Gentoo Linux Security Advisory 202211-08

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.

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Gentoo Linux Security Advisory GLSA 202211-08


                                       https://security.gentoo.org/  

Severity: Normal
Title: sudo: Heap-Based Buffer Overread
Date: November 22, 2022
Bugs: #879209
ID: 202211-08


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
[email protected] 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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