[USN-5872-1] NSS vulnerabilities

[Ian Constantin]

==========================================================================

Ubuntu Security Notice USN-5872-1
February 15, 2023

nss vulnerabilities
==========================================================================

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

- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

Summary:

Several security issues were fixed in NSS.

Software Description:
- 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. (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 16.04 ESM:
   libnss3                         2:3.28.4-0ubuntu0.16.04.14+esm3

Ubuntu 14.04 ESM:
   libnss3                         2:3.28.4-0ubuntu0.14.04.5+esm11

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-5872-1 
<https://ubuntu.com/security/notices/USN-5872-1>
   CVE-2022-22747, CVE-2022-34480
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/ubuntu-security-announce/attachments/20230215/041419dd/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: OpenPGP_signature
Type: application/pgp-signature
Size: 665 bytes
Desc: OpenPGP digital signature
URL: <https://lists.ubuntu.com/archives/ubuntu-security-announce/attachments/20230215/041419dd/attachment.sig>