Your submission was sent successfully! Close

Thank you for contacting us. A member of our team will be in touch shortly. Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2020-12399

Publication date 26 May 2020

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

4.4 · Medium

Score breakdown

NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

Status

Package Ubuntu Release Status
firefox 20.04 LTS focal
Fixed 77.0.1+build1-0ubuntu0.20.04.1
19.10 eoan
Fixed 77.0.1+build1-0ubuntu0.19.10.1
18.04 LTS bionic
Fixed 77.0.1+build1-0ubuntu0.18.04.1
16.04 LTS xenial
Fixed 77.0.1+build1-0ubuntu0.16.04.1
14.04 LTS trusty Not in release
nss 20.04 LTS focal
Fixed 2:3.49.1-1ubuntu1.1
19.10 eoan
Fixed 2:3.45-1ubuntu2.3
18.04 LTS bionic
Fixed 2:3.35-2ubuntu2.8
16.04 LTS xenial
Fixed 2:3.28.4-0ubuntu0.16.04.11
14.04 LTS trusty
thunderbird 20.04 LTS focal
Fixed 1:68.10.0+build1-0ubuntu0.20.04.1
19.10 eoan
Fixed 1:68.10.0+build1-0ubuntu0.19.10.1
18.04 LTS bionic
Fixed 1:68.10.0+build1-0ubuntu0.18.04.1
16.04 LTS xenial
Fixed 1:68.10.0+build1-0ubuntu0.16.04.1
14.04 LTS trusty Not in release

Get expanded security coverage with Ubuntu Pro

Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.

Get Ubuntu Pro

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