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Gentoo Linux Security Advisory                           GLSA 202310-11
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: less: Denial service
     Date: October 10, 2023
     Bugs: #893530
       ID: 202310-11
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Synopsis
========
A filtering bypass in less may allow denial of service.
Background
==========
less is a pager and text file viewer.
Affected packages
=================
Package        Vulnerable    Unaffected
-------------  ------------  ------------
sys-apps/less  < 608-r2      >= 608-r2
Description
===========
less suffered from a flaw in its terminal escape sequence handling which
made its filtering incomplete.
Impact
======
Malicious input could clear the terminal output or otherwise manipulate
it with faked interactions.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All less users should upgrade to the latest version:
  # emerge --sync
  # emerge --ask --oneshot --verbose ">=sys-apps/less-608-r2"
References
==========
[ 1 ] CVE-2022-46663
      https://nvd.nist.gov/vuln/detail/CVE-2022-46663
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
 https://security.gentoo.org/glsa/202310-11
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 2023 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