[gentoo-announce] [ GLSA 202107-28 ] GNU Chess: Buffer overflow

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Severity: Normal Title: GNU Chess: Buffer overflow Date: July 12, 2021 Bugs: #780855 ID: 202107-28
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Synopsis ========
A buffer overflow in GNU Chess might allow arbitrary code execution.
Background ==========
GNU Chess is a console based chess interfae.
Affected packages =================
——————————————————————- Package / Vulnerable / Unaffected ——————————————————————- 1 games-board/gnuchess < 6.2.8-r1 >= 6.2.8-r1
Description ===========
The cmd_pgnload() and cmd_pgnreplay() functions in cmd.cc in GNU Chess to not sufficiently validate PGN file input, potentially resulting in a buffer overflow.
Impact ======
A remote attacker could entice a user to open a specially crafted PGN file using GNU Chess, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All GNU Chess users should upgrade to the latest version:
# emerge –sync # emerge –ask –oneshot –verbose “>=games-board/gnuchess-6.2.8-r1”
References ==========
[ 1 ] CVE-2021-30184 nvd.nist.gov/vuln/detail/CVE-2021-30184
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
security.gentoo.org/glsa/202107-28
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 bugs.gentoo.org.
License =======
Copyright 2021 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.
creativecommons.org/licenses/by-sa/2.5