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Gentoo Linux Security Advisory GLSA 202006-05 |
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https://security.gentoo.org/ |
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Severity: Normal |
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Title: Nokogiri: Command injection |
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Date: June 13, 2020 |
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Bugs: #691974 |
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ID: 202006-05 |
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Synopsis |
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======== |
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|
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Nokogiri has a vulnerability allowing arbitrary execution of code if a |
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certain function is used. |
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Background |
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========== |
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|
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Nokogiri is an HTML, XML, SAX, and Reader parser. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 dev-ruby/nokogiri < 1.10.4 >= 1.10.4 |
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Description |
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=========== |
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|
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A command injection vulnerability in Nokogiri allows commands to be |
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executed in a subprocess by Ruby's Kernel.open method. Processes are |
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vulnerable only if the undocumented method |
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Nokogiri::CSS::Tokenizer#load_file is being passed untrusted user |
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input. |
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Impact |
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====== |
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|
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A remote attacker could possibly execute arbitrary code with the |
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privileges of the process. |
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Workaround |
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========== |
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|
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Avoid calling the undocumented method |
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Nokogiri::CSS::Tokenizer#load_file with untrusted user input. |
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Resolution |
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========== |
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All Nokogiri users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=dev-ruby/nokogiri-1.10.4" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2019-5477 |
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https://nvd.nist.gov/vuln/detail/CVE-2019-5477 |
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[ 2 ] Upstream bug |
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https://github.com/sparklemotion/nokogiri/issues/1915 |
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|
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Availability |
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============ |
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|
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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https://security.gentoo.org/glsa/202006-05 |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users' machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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https://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2020 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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https://creativecommons.org/licenses/by-sa/2.5 |
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