CVE-2020-6829

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.

5.3

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.19%

Vendor Advisory mozilla.org Vendor Advisory mozilla.org

Affected: Mozilla Firefox

Affected: Mozilla Firefox for Android

References

Link	Tags
https://www.mozilla.org/security/advisories/mfsa2020-39/	vendor advisory
https://www.mozilla.org/security/advisories/mfsa2020-36/	vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1631583	permissions required
https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html	mailing list

Frequently Asked Questions

What is the severity of CVE-2020-6829?: CVE-2020-6829 has been scored as a medium severity vulnerability.
How to fix CVE-2020-6829?: To fix CVE-2020-6829, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-6829 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2020-6829 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-6829?: CVE-2020-6829 affects Mozilla Firefox, Mozilla Firefox for Android.

This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.