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CVE-2018-19838 (Medium) detected in node-sass-v4.11.0 #57

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whitesource-bolt-for-github bot opened this issue May 6, 2019 · 1 comment

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commented May 6, 2019

CVE-2018-19838 - Medium Severity Vulnerability

Vulnerable Library - node-sassv4.11.0

馃寛 Node.js bindings to libsass

Library home page: https://github.com/sass/node-sass.git

Found in HEAD commit: 29dcad339d37f2169e5a640bf8d0d1438f7c18c2

Library Source Files (125)

* The source files were matched to this source library based on a best effort match. Source libraries are selected from a list of probable public libraries.

  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/expand.hpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/color_maps.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/sass_util.hpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/utf8/unchecked.h
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/output.hpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/sass_values.hpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/util.hpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/emitter.hpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/lexer.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/test/test_node.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/plugins.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/include/sass/base.h
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/position.hpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/subset_map.hpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/operation.hpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/remove_placeholders.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/error_handling.hpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/custom_importer_bridge.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/contrib/plugin.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/functions.hpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/test/test_superselector.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/eval.hpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/utf8_string.hpp
  • /cypress/packages/reporter/node_modules/node-sass/src/sass_context_wrapper.h
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/error_handling.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/node.cpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/parser.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/subset_map.cpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/emitter.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/listize.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/ast.hpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/sass_functions.hpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/memory/SharedPtr.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/output.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/check_nesting.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/ast_def_macros.hpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/functions.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/cssize.hpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/prelexer.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/paths.hpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/ast_fwd_decl.hpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/inspect.hpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/sass_types/color.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/test/test_unification.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/values.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/sass_util.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/source_map.hpp
  • /cypress/packages/reporter/node_modules/node-sass/src/sass_types/list.h
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/check_nesting.hpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/json.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/units.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/units.hpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/context.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/utf8/checked.h
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/listize.hpp
  • /cypress/packages/runner/node_modules/node-sass/src/sass_types/string.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/prelexer.hpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/context.hpp
  • /cypress/packages/reporter/node_modules/node-sass/src/sass_types/boolean.h
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/include/sass2scss.h
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/eval.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/expand.cpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/sass_types/factory.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/operators.cpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/sass_types/boolean.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/source_map.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/sass_types/value.h
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/utf8_string.cpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/callback_bridge.h
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/file.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/sass.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/node.hpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/environment.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/extend.hpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/sass_context.hpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/operators.hpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/constants.hpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/sass.hpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/ast_fwd_decl.cpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/parser.hpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/constants.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/sass_types/list.cpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/cssize.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/include/sass/functions.h
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/util.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/custom_function_bridge.cpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/custom_importer_bridge.h
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/bind.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/inspect.cpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/sass_functions.cpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/backtrace.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/extend.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/sass_types/sass_value_wrapper.h
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/debugger.hpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/cencode.c
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/base64vlq.cpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/sass_types/number.cpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/sass_types/color.h
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/c99func.c
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/position.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/remove_placeholders.hpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/sass_values.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/include/sass/values.h
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/test/test_subset_map.cpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/sass2scss.cpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/sass_types/null.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/ast.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/include/sass/context.h
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/to_c.cpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/to_value.hpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/color_maps.hpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/sass_context_wrapper.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/script/test-leaks.pl
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/lexer.hpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/memory/SharedPtr.hpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/to_c.hpp
  • /cypress/packages/reporter/node_modules/node-sass/src/sass_types/map.cpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/to_value.cpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/b64/encode.h
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/file.hpp
  • /cypress/packages/reporter/node_modules/node-sass/src/libsass/src/environment.hpp
  • /cypress/packages/runner/node_modules/node-sass/src/libsass/src/plugins.hpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/binding.cpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/sass_context.cpp
  • /cypress/packages/desktop-gui/node_modules/node-sass/src/libsass/src/debug.hpp

Vulnerability Details

In LibSass prior to 3.5.5, functions inside ast.cpp for IMPLEMENT_AST_OPERATORS expansion allow attackers to cause a denial-of-service resulting from stack consumption via a crafted sass file, as demonstrated by recursive calls involving clone(), cloneChildren(), and copy().

Publish Date: 2018-12-04

URL: CVE-2018-19838

CVSS 3 Score Details (6.5)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: Low
    • Privileges Required: None
    • User Interaction: Required
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: None
    • Integrity Impact: None
    • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19838

Fix Resolution: 3.5.5


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commented May 6, 2019

Issue-Label Bot is automatically applying the label bug to this issue, with a confidence of 0.86. Please mark this comment with 馃憤 or 馃憥 to give our bot feedback!

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@issue-label-bot issue-label-bot bot added the bug label May 6, 2019

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