GHSA-34r7-q49f-h37c

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

Source: GitHub Advisory Database (reviewed) Critical CVE-2015-8857

Packages

Ecosystem	Package	Affected	Fixed in
npm	uglify-js	< 2.4.24	2.4.24
RubyGems	uglifier	< 2.7.2	2.7.2

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.

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