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Ubuntu 16.04 ESM USN-5892-2 Critical: NSS Denial Of Service

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Calendar Grey March 6, 2023
Scroller Ubuntu
Ubuntu Security Announcement USN-5892-3 pertains to NSS vulnerabilities, which may lead to system instability triggered by malicious certificates in various versions.
NSS could be made to crash if it received a specially crafted certificate.

Summary

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

Software Description:

- 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)

Topics%20covered

Topics Covered

security advisory denial of service critical severity ubuntu nss

Update Instructions

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

Ubuntu 16.04 ESM:
  libnss3                         2:3.28.4-0ubuntu0.16.04.14+esm4

Ubuntu 14.04 ESM:
  libnss3                         2:3.28.4-0ubuntu0.14.04.5+esm12

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

References

https://ubuntu.com/security/notices/USN-5892-2

https://ubuntu.com/security/notices/USN-5892-1

CVE-2023-0767

Severity
critical
Lowest
Low
Medium
High
Critical

March 06, 2023

Topics%20covered

Topics Covered

security advisory denial of service critical severity ubuntu nss

Package Information

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