Gentoo Linux Security Advisory 202007-27 - A flaw in Haml allows arbitrary code execution as a result of improper filtering. Versions less than 5.1.2 are affected.
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Gentoo Linux Security Advisory GLSA 202007-27
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https://security.gentoo.org/
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Severity: Normal
Title: Haml: Arbitrary code execution
Date: July 27, 2020
Bugs: #699840
ID: 202007-27
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Synopsis
=======
A flaw in Haml allows arbitrary code execution as a result of improper
filtering.
Background
=========
Haml is a templating engine for HTML.
Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-ruby/haml < 5.1.2 >= 5.1.2
Description
==========
It was discovered that Haml was not correctly filtering out special
characters which may be used for attributes.
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 Haml users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">Þv-ruby/haml-5.1.2"
References
=========
[ 1 ] CVE-2017-1002201
https://nvd.nist.gov/vuln/detail/CVE-2017-1002201
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202007-27
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