Gentoo: GLSA-202107-29 Normal: Ruby on Rails Security Flaw
gentoo
July 26, 2020
A flaw in Haml allows arbitrary code execution as a result of improper filtering.
Summary
It was discovered that Haml was not correctly filtering out special characters which may be used for attributes.
Topics Covered
Resolution
All Haml users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-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
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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: Haml: Arbitrary code execution
Date: July 27, 2020
Bugs: #699840
ID: 202007-27
Topics Covered
Background
Haml is a templating engine for HTML.
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Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-ruby/haml < 5.1.2 >= 5.1.2
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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