A nss security update has been released for Debian GNU/Linux 8 Extended LTS to address an issue what could result in denial of service.

DLA 2898-1: nss security update

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Debian LTS Advisory DLA-2898-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Emilio Pozuelo Monfort
January 25, 2022   https://wiki.debian.org/LTS
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Package : nss
Version : 2:3.26.2-1.1+deb9u5
CVE ID : CVE-2022-22747

It was found that nss, the Mozilla Network Security Service library, was
vulnerable to a NULL pointer dereference when parsing empty PKCS 7
sequences, which could result in denial of service.

For Debian 9 stretch, this problem has been fixed in version
2:3.26.2-1.1+deb9u5.

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 LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS