Home / mailings [gentoo-announce] [ GLSA 202011-10 ] tmux: Buffer overflow
Posted on 11 November 2020
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Gentoo Linux Security Advisory GLSA 202011-10
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https://security.gentoo.org/
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Severity: Normal
Title: tmux: Buffer overflow
Date: November 11, 2020
Bugs: #753206
ID: 202011-10
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Synopsis
========
A buffer overflow in tmux might allow remote attacker(s) to execute
arbitrary code.
Background
==========
tmux is a terminal multiplexer.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-misc/tmux < 3.1c >= 3.1c
Description
===========
A flaw in tmux's handling of escape characters was discovered which may
allow a buffer overflow.
Impact
======
A remote attacker could possibly execute arbitrary code with the
privileges of the process, or cause a Denial of Service condition.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All tmux users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-misc/tmux-3.1c"
References
==========
[ 1 ] CVE-2020-27347
https://nvd.nist.gov/vuln/detail/CVE-2020-27347
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202011-10
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 2020 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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