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CVE-2020-12401

Publication date 5 August 2020

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

4.7 · Medium

Score breakdown

During ECDSA signature generation, padding applied in the nonce designed to ensure constant-time scalar multiplication was removed, resulting in variable-time execution dependent on secret data. This vulnerability affects Firefox < 80 and Firefox for Android < 80.

Status

Package Ubuntu Release Status
firefox 20.04 LTS focal
Fixed 80.0+build2-0ubuntu0.20.04.1
18.04 LTS bionic
Fixed 80.0+build2-0ubuntu0.18.04.1
16.04 LTS xenial
Fixed 80.0+build2-0ubuntu0.16.04.1
14.04 LTS trusty Not in release
nss 20.04 LTS focal
Fixed 2:3.49.1-1ubuntu1.4
18.04 LTS bionic
Fixed 2:3.35-2ubuntu2.11
16.04 LTS xenial
Fixed 2:3.28.4-0ubuntu0.16.04.13
14.04 LTS trusty

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
nss

Severity score breakdown

Parameter Value
Base score 4.7 · Medium
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N