Gentoo Linux Security Advisory 202310-20 ≈ Packet Storm

Roger Wilco Alertes 30 octobre 2023 Affichages : 63

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Gentoo Linux Security Advisory 202310-20^[6]: Authored by Gentoo ^[7] | Site security.gentoo.org ^[8]; Gentoo Linux Security Advisory 202310-20 - A vulnerability has been discovered in rxvt-unicode where data written to the terminal can lead to code execution. Versions greater than or equal to 9.30 are affected.; systems | linux ^[9], gentoo ^[10]; advisories | CVE-2022-4170 ^[11]; SHA-256 | 51693714edc63725a63b018c30f566d28311880f518aca2b99ea93357c62de90; Download ^[12] | Favorite ^[13] | View ^[14]

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Gentoo Linux Security Advisory                           GLSA 202310-20
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https://security.gentoo.org/
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Severity: High
Title: rxvt-unicode: Arbitrary Code Execution
Date: October 30, 2023
Bugs: #884787
ID: 202310-20
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Synopsis
========
A vulnerability has been discovered in rxvt-unicode where data written
to the terminal can lead to code execution.
Background
==========
rxvt-unicode is a clone of the well known terminal emulator rxvt.
Affected packages
=================
Package                 Vulnerable    Unaffected
----------------------  ------------  ------------
x11-terms/rxvt-unicode  < 9.30        >= 9.30
Description
===========
A vulnerability has been discovered in rxvt-unicode. Please review the
CVE identifiers referenced below for details.
Impact
======
in the Perl background extension, when an attacker can
control the data written to the user's terminal and certain options are
set.
The "background" extension is automatically loaded if certain X
resources are set such as 'transparent' (see the full list at the top of
src/perl/background[1]). So it is possible to be using this extension
without realising it.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All rxvt-unicode users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-terms/rxvt-unicode-9.30"
References
==========
[ 1 ] CVE-2022-4170
https://nvd.nist.gov/vuln/detail/CVE-2022-4170
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202310-20
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
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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