1. Ubuntu Security Notices
  2. USN-5892-2

USN-5892-2: NSS vulnerability

Publication date

6 March 2023

Overview

NSS could be made to crash if it received a specially crafted certificate.

Releases

Packages

  • nss - Network Security Service library

Details

USN-5892-1 fixed a vulnerability in NSS. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

Christian Holler discovered that NSS incorrectly handled certain PKCS 12
certificated bundles. A remote attacker could use this issue to cause NSS
to crash, leading to a denial of service, or possibly execute arbitrary
code. (CVE-2023-0767)

USN-5892-1 fixed a vulnerability in NSS. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

Christian Holler discovered that NSS incorrectly handled certain PKCS 12
certificated bundles. A remote attacker could use this issue to cause NSS
to crash, leading to a denial of service, or possibly execute arbitrary
code. (CVE-2023-0767)

Update instructions

After a standard system update you need to restart any applications that use NSS to make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
16.04 xenial libnss3 –  2:3.28.4-0ubuntu0.16.04.14+esm4  
14.04 trusty libnss3 –  2:3.28.4-0ubuntu0.14.04.5+esm12  

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References

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