CVE-2020-6829

MediumCVSS 5.3/10Last modified Aug 19, 2026

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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected software

Vendor	Product	Versions
Mozilla	Firefox	>= unspecified, < 80
Mozilla	Firefox for Android	>= unspecified, < 80

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1631583Permissions Required
https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html
https://www.mozilla.org/security/advisories/mfsa2020-36/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-39/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1631583Permissions Required
https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html
https://www.mozilla.org/security/advisories/mfsa2020-36/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-39/Vendor Advisory

Timeline

Published: Oct 28, 2020
Last modified: Aug 19, 2026
NVD status: Modified

Related CVEs from 2020

CVE-2020-68307.5For native-to-JS bridging, the app requires a unique token to be passed that ensures non-app code can't call the bridging functions. That to CVE-2020-68319.8A buffer overflow could occur when parsing and validating SCTP chunks in WebRTC. This could have led to memory corruption and a potentially CVE-2020-68325.3An issue was discovered in GitLab Enterprise Edition (EE) 8.9.0 through 12.6.1. Using the project import feature, it was possible for someon CVE-2020-68337.5An issue was discovered in GitLab EE 11.3 and later. A GitLab Workhorse bypass could lead to package and file disclosure via request smuggli CVE-2020-68359.8An issue was discovered in Bftpd before 5.4. There is a heap-based off-by-one error during file-transfer error checking.CVE-2020-68369.8grammar-parser.jison in the hot-formula-parser package before 3.0.1 for Node.js is vulnerable to arbitrary code injection. The package fails CVE-2020-68389.8In mruby 2.1.0, there is a use-after-free in hash_values_at in mrbgems/mruby-hash-ext/src/hash-ext.c.CVE-2020-68399.8In mruby 2.1.0, there is a stack-based buffer overflow in mrb_str_len_to_dbl in string.c.CVE-2020-68409.8In mruby 2.1.0, there is a use-after-free in hash_slice in mrbgems/mruby-hash-ext/src/hash-ext.c.CVE-2020-68419.8D-Link DCH-M225 1.05b01 and earlier devices allow remote attackers to execute arbitrary OS commands via shell metacharacters in the spotifyC CVE-2020-68427.2D-Link DCH-M225 1.05b01 and earlier devices allow remote authenticated admins to execute arbitrary OS commands via shell metacharacters in t CVE-2020-68434.8Zoho ManageEngine ServiceDesk Plus 11.0 Build 11007 allows XSS. This issue was fixed in version 11.0 Build 11010, SD-83959.