CRITICAL9.8

GHSA-34r7-q49f-h37c

Incorrect Handling of Non-Boolean Comparisons During Minification in uglify-js

Quick fix

GHSA-34r7-q49f-h37c — uglify-js: upgrade to the fixed version with the command below.

npm install uglify-js@2.4.24

Details

Versions of `uglify-js` prior to 2.4.24 are affected by a vulnerability which may cause crafted JavaScript to have altered functionality after minification.

## Recommendation

Upgrade UglifyJS to version >= 2.4.24.

Are you affected?

Enter the version of the package you're using.

Affected packages

npm/uglify-js

Introduced in: 0Fixed in: 2.4.24

Fixnpm install uglify-js@2.4.24

RubyGems/uglifier

Introduced in: 0Fixed in: 2.7.2

Fixbundle update uglifier

References

https://nvd.nist.gov/vuln/detail/CVE-2015-8857[ADVISORY]
https://github.com/mishoo/UglifyJS2/issues/751[WEB]
https://github.com/lautis/uglifier/commit/4677bfe38142937ff952f95605bcec4618892c3e[WEB]
https://github.com/mishoo/UglifyJS2[PACKAGE]
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/uglifier/CVE-2015-8857.yml[WEB]
https://web.archive.org/web/20200227190830/http://www.securityfocus.com/bid/96410[WEB]
https://zyan.scripts.mit.edu/blog/backdooring-js[WEB]
http://www.openwall.com/lists/oss-security/2016/04/20/11[WEB]