Gentoo: GLSA-202011-10 Normal: tmux Buffer Overflow Risk
gentoo
November 10, 2020
A buffer overflow in tmux might allow remote attacker(s) to execute arbitrary code.
Summary
A flaw in tmux's handling of escape characters was discovered which may allow a buffer overflow.
Topics Covered
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
style>.gentoo_availability{display:block;}
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.
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Severity: Normal
Title: tmux: Buffer overflow
Date: November 11, 2020
Bugs: #753206
ID: 202011-10
Topics Covered
Background
tmux is a terminal multiplexer.
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Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-misc/tmux < 3.1c >= 3.1c
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.
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