CVE-2020-12401

2020-08-0500:00:00

ubuntu.com

4.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

1.9 Low

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:M/Au:N/C:P/I:N/A:N

0.0005 Low

EPSS

Percentile

15.6%

JSON

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.

Bugs

<https://bugzilla.mozilla.org/show_bug.cgi?id=1631573 (private)>

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchfirefox< 80.0+build2-0ubuntu0.18.04.1UNKNOWN
ubuntu20.04noarchfirefox< 80.0+build2-0ubuntu0.20.04.1UNKNOWN
ubuntu16.04noarchfirefox< 80.0+build2-0ubuntu0.16.04.1UNKNOWN
ubuntu18.04noarchnss< 2:3.35-2ubuntu2.11UNKNOWN
ubuntu20.04noarchnss< 2:3.49.1-1ubuntu1.4UNKNOWN
ubuntu14.04noarchnss< 2:3.28.4-0ubuntu0.14.04.5+esm7) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchnss< 2:3.28.4-0ubuntu0.16.04.13UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	firefox	< 80.0+build2-0ubuntu0.18.04.1	UNKNOWN
ubuntu	20.04	noarch	firefox	< 80.0+build2-0ubuntu0.20.04.1	UNKNOWN
ubuntu	16.04	noarch	firefox	< 80.0+build2-0ubuntu0.16.04.1	UNKNOWN
ubuntu	18.04	noarch	nss	< 2:3.35-2ubuntu2.11	UNKNOWN
ubuntu	20.04	noarch	nss	< 2:3.49.1-1ubuntu1.4	UNKNOWN
ubuntu	14.04	noarch	nss	< 2:3.28.4-0ubuntu0.14.04.5+esm7) Available with Ubuntu Pro or Ubuntu Pro (Infra-only	UNKNOWN
ubuntu	16.04	noarch	nss	< 2:3.28.4-0ubuntu0.16.04.13	UNKNOWN