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Ubuntu Security Notice USN-5892-1 ≈ Mobile Hacker For Hire

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Ubuntu Security Notice USN-5892-1
February 27, 2023

nss vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 22.10
– Ubuntu 22.04 LTS
– Ubuntu 20.04 LTS
– Ubuntu 18.04 LTS


Several security issues were fixed in NSS.

Software Description:
– nss: Network Security Service library


It was discovered that NSS incorrectly handled client authentication
without a user certificate in the database. A remote attacker could
possibly use this issue to cause a NSS client to crash, resulting in a
denial of service. This issue only affected Ubuntu 22.10. (CVE-2022-3479)

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:

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

Ubuntu 22.10:
libnss3 2:3.82-1ubuntu0.1

Ubuntu 22.04 LTS:
libnss3 2:3.68.2-0ubuntu1.2

Ubuntu 20.04 LTS:
libnss3 2:3.49.1-1ubuntu1.9

Ubuntu 18.04 LTS:
libnss3 2:3.35-2ubuntu2.16

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

CVE-2022-3479, CVE-2023-0767

Package Information:

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