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[Security] Bump clean-css from 4.1.9 to 4.2.3 #19

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Bumps clean-css from 4.1.9 to 4.2.3. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

Regular Expression Denial of Service in clean-css Version of clean-css prior to 4.1.11 are vulnerable to Regular Expression Denial of Service (ReDoS). Untrusted input may cause catastrophic backtracking while matching regular expressions. This can cause the application to be unresponsive leading to Denial of Service.

Recommendation

Upgrade to version 4.1.11 or higher.

Affected versions: < 4.1.11

Changelog

Sourced from clean-css's changelog.

4.2.3 / 2020-01-28

  • Fixed issue #1106 - regression in handling RGBA/HSLA colors.

4.2.2 / 2020-01-25

  • Fixed error when property block has no value.
  • Fixed issue #1077 - local fonts with color in name.
  • Fixed issue #1082 - correctly convert colors if alpha >= 1.
  • Fixed issue #1085 - prevent unquoting of grid elements.

4.2.1 / 2018-08-07

  • Fixes giving breakWith option via a string.

4.2.0 / 2018-08-02

  • Adds process method for compatibility with optimize-css-assets-webpack-plugin.
  • Fixed issue #861 - new transition property optimizer.
  • Fixed issue #895 - ignoring specific styles.
  • Fixed issue #947 - selector based filtering.
  • Fixed issue #964 - adds configurable line breaks.
  • Fixed issue #986 - level 2 optimizations and CSS 4 colors.
  • Fixed issue #1000 - carriage return handling in tokenizer.
  • Fixed issue #1038 - font-variation-settings quoting.
  • Fixes ReDOS vulnerabilities in validator code.

4.1.11 / 2018-03-06

  • Backports fixes to ReDOS vulnerabilities in validator code.

4.1.10 / 2018-03-05

  • Fixed issue #988 - edge case in dropping default animation-duration.
  • Fixed issue #989 - edge case in removing unused at rules.
  • Fixed issue #1001 - corrupted tokenizer state.
  • Fixed issue #1006 - edge case in handling invalid source maps.
  • Fixed issue #1008 - edge case in breaking up font shorthand.
Commits
  • d0ad142 Version 4.2.3.
  • f47397c Fixes #1106 - regression in handling RGBA and HSLA colors.
  • a75f942 Bumps web interface to version 4.2.2.
  • 58d80f8 Version 4.2.2.
  • e79454c Adds missing changelog entries.
  • e1410e4 fix(colors): convert rgba/hsla to rgb/hsl if opacity is >= 1 (#1083)
  • 9b1ed5b Prevent unquoting on grid elements (#1085)
  • 31379cd Fix local fonts with colors in name (#1077)
  • da25f4f Prevent error if property block has no value (level 0) (#1061)
  • b01dd75 Bumps web interface to version 4.2.1.
  • Additional commits viewable in compare view

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Bumps [clean-css](https://github.com/jakubpawlowicz/clean-css) from 4.1.9 to 4.2.3. **This update includes a security fix.**
- [Release notes](https://github.com/jakubpawlowicz/clean-css/releases)
- [Changelog](https://github.com/jakubpawlowicz/clean-css/blob/v4.2.3/History.md)
- [Commits](clean-css/clean-css@v4.1.9...v4.2.3)

Signed-off-by: dependabot-preview[bot] <[email protected]>
@dependabot-preview dependabot-preview bot added dependencies Pull requests that update a dependency file security Pull requests that address a security vulnerability labels Sep 3, 2020
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