Ubuntu Security Notice USN-5872-1
February 15, 2023
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM
Several security issues were fixed in NSS.
- nss: Network Security Service library
Tavis Ormandy discovered that NSS incorrectly handled an empty pkcs7
sequence. A remote attacker could possibly use this issue to cause NSS to
crash, resulting in a denial of service. (CVE-2022-22747)
Ronald Crane discovered that NSS incorrectly handled certain memory
operations. A remote attacker could use this issue to cause NSS to crash,
resulting in a denial of service, or possibly execute arbitrary code.
The problem can be corrected by updating your system to the following
Ubuntu 16.04 ESM:
Ubuntu 14.04 ESM:
After a standard system update you need to restart any applications that
use NSS to make all the necessary changes.
A NSS security update has been released for Ubuntu Linux 14.04 ESM and 16.04 ESM.