CVE-2018-19826 (Medium) detected in node-sass-v4.6.1

[mend-bolt-for-github]

CVE-2018-19826 - Medium Severity Vulnerability

Vulnerable Library - node-sassv4.6.1

🌈 Node.js bindings to libsass

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

Found in HEAD commit: 57af924daa9373d491eb3522685d80412ef4100a

Library Source Files (63)

* 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.

• /push-button/client/node_modules/node-sass/src/sass_types/map.cpp
• /push-button/client/node_modules/node-sass/src/sass_types/list.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/functions.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/debugger.hpp
• /push-button/client/node_modules/node-sass/src/libsass/src/prelexer.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/output.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/ast.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/check_nesting.hpp
• /push-button/client/node_modules/node-sass/src/libsass/src/parser.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/bind.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/functions.hpp
• /push-button/client/node_modules/node-sass/src/libsass/src/constants.cpp
• /push-button/client/node_modules/node-sass/src/sass_types/number.cpp
• /push-button/client/node_modules/node-sass/src/sass_context_wrapper.cpp
• /push-button/client/node_modules/node-sass/src/custom_importer_bridge.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/prelexer.hpp
• /push-button/client/node_modules/node-sass/src/libsass/src/extend.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/node.cpp
• /push-button/client/node_modules/node-sass/src/sass_types/sass_value_wrapper.h
• /push-button/client/node_modules/node-sass/src/libsass/src/ast_fwd_decl.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/cssize.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/remove_placeholders.cpp
• /push-button/client/node_modules/node-sass/src/sass_types/null.cpp
• /push-button/client/node_modules/node-sass/src/sass_types/string.cpp
• /push-button/client/node_modules/node-sass/src/sass_types/boolean.cpp
• /push-button/client/node_modules/node-sass/src/custom_importer_bridge.h
• /push-button/client/node_modules/node-sass/src/libsass/src/ast_fwd_decl.hpp
• /push-button/client/node_modules/node-sass/src/libsass/src/file.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/ast.hpp
• /push-button/client/node_modules/node-sass/src/libsass/src/values.cpp
• /push-button/client/node_modules/node-sass/src/callback_bridge.h
• /push-button/client/node_modules/node-sass/src/sass_context_wrapper.h
• /push-button/client/node_modules/node-sass/src/libsass/src/sass.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/node.hpp
• /push-button/client/node_modules/node-sass/src/libsass/src/util.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/memory/SharedPtr.hpp
• /push-button/client/node_modules/node-sass/src/libsass/src/backtrace.hpp
• /push-button/client/node_modules/node-sass/src/sass_types/color.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/sass_context.cpp
• /push-button/client/node_modules/node-sass/src/custom_function_bridge.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/environment.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/context.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/expand.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/to_c.cpp
• /push-button/client/node_modules/node-sass/src/sass_types/boolean.h
• /push-button/client/node_modules/node-sass/src/libsass/src/sass_values.cpp
• /push-button/client/node_modules/node-sass/src/binding.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/listize.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/source_map.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/inspect.hpp
• /push-button/client/node_modules/node-sass/src/libsass/src/inspect.cpp
• /push-button/client/node_modules/node-sass/src/sass_types/list.h
• /push-button/client/node_modules/node-sass/src/libsass/src/sass_functions.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/sass_util.hpp
• /push-button/client/node_modules/node-sass/src/libsass/src/to_c.hpp
• /push-button/client/node_modules/node-sass/src/libsass/src/listize.hpp
• /push-button/client/node_modules/node-sass/src/sass_types/color.h
• /push-button/client/node_modules/node-sass/src/libsass/src/eval.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/environment.hpp
• /push-button/client/node_modules/node-sass/src/libsass/src/to_value.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/parser.hpp
• /push-button/client/node_modules/node-sass/src/sass_types/factory.cpp
• /push-button/client/node_modules/node-sass/src/libsass/src/lexer.cpp

Vulnerability Details

** DISPUTED ** In inspect.cpp in LibSass 3.5.5, a high memory footprint caused by an endless loop (containing a Sass::Inspect::operator()(Sass::String_Quoted*) stack frame) may cause a Denial of Service via crafted sass input files with stray '&' or '/' characters. NOTE: Upstream comments indicate this issue is closed as "won't fix" and "works as intended" by design.

Publish Date: 2018-12-03

URL: CVE-2018-19826

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.

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