CVE-2018-19797 (Medium) detected in CSS::Sass-v3.6.0

[mend-bolt-for-github]

CVE-2018-19797 - Medium Severity Vulnerability

Vulnerable Library - CSS::Sassv3.6.0

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

Found in HEAD commit: eeefb98d520629c182c4d88691216d2bd738678a

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.

• /website/docs/node_modules/node-sass/src/libsass/src/color_maps.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/sass_util.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/utf8/unchecked.h
• /website/docs/node_modules/node-sass/src/libsass/src/output.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/b64/cencode.h
• /website/docs/node_modules/node-sass/src/libsass/src/source_map.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/sass_values.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/lexer.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/utf8.h
• /website/docs/node_modules/node-sass/src/libsass/test/test_node.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/utf8_string.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/plugins.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/node.hpp
• /website/docs/node_modules/node-sass/src/libsass/include/sass/base.h
• /website/docs/node_modules/node-sass/src/libsass/src/json.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/environment.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/position.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/extend.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/subset_map.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/remove_placeholders.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/sass_context.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/sass.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/ast_fwd_decl.cpp
• /website/docs/node_modules/node-sass/src/libsass/contrib/plugin.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/utf8/core.h
• /website/docs/node_modules/node-sass/src/libsass/include/sass/functions.h
• /website/docs/node_modules/node-sass/src/libsass/test/test_superselector.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/sass_functions.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/utf8_string.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/node.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/cencode.c
• /website/docs/node_modules/node-sass/src/libsass/src/subset_map.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/base64vlq.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/listize.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/c99func.c
• /website/docs/node_modules/node-sass/src/libsass/src/position.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/remove_placeholders.hpp
• /website/docs/node_modules/node-sass/src/libsass/include/sass/values.h
• /website/docs/node_modules/node-sass/src/libsass/src/sass_functions.hpp
• /website/docs/node_modules/node-sass/src/libsass/test/test_subset_map.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/sass2scss.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/memory/SharedPtr.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/paths.hpp
• /website/docs/node_modules/node-sass/src/libsass/include/sass/context.h
• /website/docs/node_modules/node-sass/src/libsass/src/color_maps.hpp
• /website/docs/node_modules/node-sass/src/libsass/test/test_unification.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/sass_util.cpp
• /website/docs/node_modules/node-sass/src/libsass/script/test-leaks.pl
• /website/docs/node_modules/node-sass/src/libsass/src/source_map.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/lexer.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/memory/SharedPtr.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/json.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/units.cpp
• /website/docs/node_modules/node-sass/src/libsass/src/to_c.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/units.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/b64/encode.h
• /website/docs/node_modules/node-sass/src/libsass/src/file.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/environment.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/utf8/checked.h
• /website/docs/node_modules/node-sass/src/libsass/src/plugins.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/listize.hpp
• /website/docs/node_modules/node-sass/src/libsass/src/debug.hpp
• /website/docs/node_modules/node-sass/src/libsass/include/sass2scss.h

Vulnerability Details

In LibSass 3.5.5, a NULL Pointer Dereference in the function Sass::Selector_List::populate_extends in SharedPtr.hpp (used by ast.cpp and ast_selectors.cpp) may cause a Denial of Service (application crash) via a crafted sass input file.

Publish Date: 2018-12-03

URL: CVE-2018-19797

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.

---

Step up your Open Source Security Game with WhiteSource here

[issue-label-bot]

Issue-Label Bot is automatically applying the label bug to this issue, with a confidence of 0.87. Please mark this comment with 👍 or 👎 to give our bot feedback!

Links: app homepage, dashboard and code for this bot.