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Ubuntu 20.04 LTS: USN-4455-1 Critical NSS Information Disclosure

ubuntu
Calendar Grey August 10, 2020
Dist Ubuntu Esm H88
Serious security flaws in NSS patched in Ubuntu impact various versions; ensure your systems are updated promptly for improved protection.
Several security issues were fixed in NSS.

Summary

Several security issues were fixed in NSS.

Software Description:

- nss: Network Security Service library

Details:

It was discovered that NSS incorrectly handled certain signatures.

An attacker could possibly use this issue to expose sensitive information.

(CVE-2020-12400, CVE-2020-12401, CVE-2020-6829)

Topics%20covered

Topics Covered

security advisory critical software update Ubuntu information disclosure nss

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS:
  libnss3                         2:3.49.1-1ubuntu1.4

Ubuntu 18.04 LTS:
  libnss3                         2:3.35-2ubuntu2.11

Ubuntu 16.04 LTS:
  libnss3                         2:3.28.4-0ubuntu0.16.04.13

Ubuntu 14.04 ESM:
  libnss3                         2:3.28.4-0ubuntu0.14.04.5+esm7

Ubuntu 12.04 ESM:
  libnss3                         2:3.28.4-0ubuntu0.12.04.10

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

https://ubuntu.com/security/notices/USN-4455-1

CVE-2020-12400, CVE-2020-12401, CVE-2020-6829

Severity
critical
Lowest
Low
Medium
High
Critical

August 10, 2020

Topics%20covered

Topics Covered

security advisory critical software update Ubuntu information disclosure nss

Package Information

https://launchpad.net/ubuntu/+source/nss/2:3.49.1-1ubuntu1.4
https://launchpad.net/ubuntu/+source/nss/2:3.35-2ubuntu2.11
https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.16.04.13

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