USN-5506-1: NSS vulnerabilities
7 July 2022
Several security issues were fixed in NSS.
Releases
Packages
- nss - Network Security Service library
Details
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. This issue only affected Ubuntu
18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 21.10. (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.
(CVE-2022-34480)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 22.04
Ubuntu 21.10
Ubuntu 20.04
Ubuntu 18.04
After a standard system update you need to restart any applications that
use NSS to make all the necessary changes.