A nss security update has been released for Debian GNU/Linux 11 to address the incorrect handling of PKCS 12 Safe Bag attributes.

DSA 5353-1: nss security update

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Debian Security Advisory DSA-5353-1 security@debian.org
  https://www.debian.org/security/ Salvatore Bonaccorso
February 17, 2023   https://www.debian.org/security/faq
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Package : nss
CVE ID : CVE-2023-0767

Christian Holler discovered that incorrect handling of PKCS 12 Safe Bag
attributes in nss, the Mozilla Network Security Service library, may
result in execution of arbitrary code if a specially crafted PKCS 12
certificate bundle is processed.

For the stable distribution (bullseye), this problem has been fixed in
version 2:3.61-1+deb11u3.

We recommend that you upgrade your nss packages.

For the detailed security status of nss please refer to its security
tracker page at:
  https://security-tracker.debian.org/tracker/nss

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://www.debian.org/security/