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CVE-2020-6829 When performing EC scalar point multiplication, the wNAF point multiplication algorithm was used; which leaked partial…

Description

When performing EC scalar point multiplication, the wNAF point multiplication algorithm was used; which leaked partial information about the nonce used during signature generation. Given an electro-magnetic trace of a few signature generations, the private key could have been computed. This vulnerability affects Firefox < 80 and Firefox for Android < 80.

Affected products and versions

Product Affected versions Fixed in
Firefox 80 earliest → < 80 80
Firefox for Android 80 earliest → < 80 80

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