CVE-2021-23368 (Medium) detected in postcss-7.0.35.tgz

[mend-bolt-for-github]

CVE-2021-23368 - Medium Severity Vulnerability

Vulnerable Library - postcss-7.0.35.tgz

Tool for transforming styles with JS plugins

Library home page: https://registry.npmjs.org/postcss/-/postcss-7.0.35.tgz

Path to dependency file: rollup-mpa/package.json

Path to vulnerable library: rollup-mpa/node_modules/postcss-color-hex-alpha/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-normalize-display-values/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-minify-params/node_modules/postcss/package.json,rollup-mpa/node_modules/css-blank-pseudo/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-merge-rules/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-image-inliner/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-normalize-unicode/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-env-function/node_modules/postcss/package.json,rollup-mpa/node_modules/cssnano/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-normalize-charset/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-discard-comments/node_modules/postcss/package.json,rollup-mpa/node_modules/css-prefers-color-scheme/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-color-mod-function/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-place/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-safe-parser/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-page-break/node_modules/postcss/package.json,rollup-mpa/node_modules/sugarss/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-minify-font-values/node_modules/postcss/package.json,rollup-mpa/node_modules/css-has-pseudo/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-media-minmax/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-normalize-repeat-style/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-custom-media/node_modules/postcss/package.json,rollup-mpa/node_modules/css-declaration-sorter/node_modules/postcss/package.json,rollup-mpa/node_modules/stylehacks/node_modules/postcss/package.json,rollup-mpa/node_modules/cssnano-util-raw-cache/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-discard-duplicates/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-focus-within/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-discard/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-reduce-initial/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-gap-properties/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-normalize-string/node_modules/postcss/package.json,rollup-mpa/node_modules/inline-critical/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-focus-visible/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-font-variant/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-colormin/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-normalize-whitespace/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-preset-env/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-sass/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-custom-selectors/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-selector-matches/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-normalize-timing-functions/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-overflow-shorthand/node_modules/postcss/package.json,rollup-mpa/node_modules/cssnano-preset-default/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-reduce-transforms/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-minify-gradients/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-image-set-function/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-color-gray/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-discard-overridden/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-dir-pseudo-class/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-normalize-positions/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-convert-values/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-discard-empty/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-less/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-lab-function/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-selector-not/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-replace-overflow-wrap/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-normalize-url/node_modules/postcss/package.json,rollup-mpa/node_modules/stylelint/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-color-rebeccapurple/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-double-position-gradients/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-svgo/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-initial/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-custom-properties/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-minify-selectors/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-unique-selectors/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-attribute-case-insensitive/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-calc/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-ordered-values/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-color-functional-notation/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-logical/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-pseudo-class-any-link/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-nesting/node_modules/postcss/package.json,rollup-mpa/node_modules/postcss-merge-longhand/node_modules/postcss/package.json

Dependency Hierarchy:

• postcss-preset-env-6.7.0.tgz (Root Library)
  • postcss-dir-pseudo-class-5.0.0.tgz
    • ❌ postcss-7.0.35.tgz (Vulnerable Library)

Found in HEAD commit: a109c8e72ab5577a0688bf4b172620db06963733

Found in base branch: master

Vulnerability Details

The package postcss from 7.0.0 and before 8.2.10 are vulnerable to Regular Expression Denial of Service (ReDoS) during source map parsing.

Publish Date: 2021-04-12

URL: CVE-2021-23368

CVSS 3 Score Details (5.3)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23368

Release Date: 2021-04-12

Fix Resolution: postcss -8.2.10

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