CVE-2018-11697 (High) detected in CSS::Sass-v3.4.7

[mend-bolt-for-github]

CVE-2018-11697 - High Severity Vulnerability

Vulnerable Library - CSS::Sassv3.4.7

Library home page: https://metacpan.org/pod/CSS::Sass

Found in HEAD commit: 656d4e1f21e1caaed229bee00eafd885e9b156b7

Library Source Files (51)

* 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.

• /Dakiya/client/node_modules/node-sass/src/libsass/src/error_handling.cpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/operation.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/sass.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/constants.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/output.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/b64/cencode.h
• /Dakiya/client/node_modules/node-sass/src/libsass/src/units.cpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/utf8/checked.h
• /Dakiya/client/node_modules/node-sass/src/libsass/src/cssize.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/utf8.h
• /Dakiya/client/node_modules/node-sass/src/libsass/test/test_node.cpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/position.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/eval.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/include/sass/base.h
• /Dakiya/client/node_modules/node-sass/src/libsass/src/json.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/subset_map.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/sass_context.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/utf8/core.h
• /Dakiya/client/node_modules/node-sass/src/libsass/include/sass/functions.h
• /Dakiya/client/node_modules/node-sass/src/libsass/src/lexer.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/sass_util.cpp
• /Dakiya/client/node_modules/node-sass/src/libsass/test/test_superselector.cpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/color_maps.cpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/utf8_string.cpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/cencode.c
• /Dakiya/client/node_modules/node-sass/src/libsass/src/utf8_string.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/b64/encode.h
• /Dakiya/client/node_modules/node-sass/src/libsass/include/sass2scss.h
• /Dakiya/client/node_modules/node-sass/src/libsass/src/base64vlq.cpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/c99func.c
• /Dakiya/client/node_modules/node-sass/src/libsass/src/sass_functions.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/test/test_subset_map.cpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/sass2scss.cpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/expand.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/emitter.cpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/to_value.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/paths.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/include/sass/context.h
• /Dakiya/client/node_modules/node-sass/src/libsass/script/test-leaks.pl
• /Dakiya/client/node_modules/node-sass/src/libsass/src/source_map.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/json.cpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/position.cpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/util.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/file.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/units.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/plugins.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/error_handling.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/debug.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/emitter.hpp
• /Dakiya/client/node_modules/node-sass/src/libsass/src/utf8/unchecked.h
• /Dakiya/client/node_modules/node-sass/src/libsass/src/extend.hpp

Vulnerability Details

An issue was discovered in LibSass through 3.5.4. An out-of-bounds read of a memory region was found in the function Sass::Prelexer::exactly() which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service.

Publish Date: 2018-06-04

URL: CVE-2018-11697

CVSS 3 Score Details (8.1)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.

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