A p11-kit security update has been released for Debian GNU/Linux 9 LTS to address several memory safety issues.

DLA 2513-1: p11-kit security update

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Debian LTS Advisory DLA-2513-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Adrian Bunk
January 04, 2021   https://wiki.debian.org/LTS
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Package : p11-kit
Version : 0.23.3-2+deb9u1
CVE ID : CVE-2020-29361 CVE-2020-29362

Several memory safety issues affecting the RPC protocol were fixed in
p11-kit, a library providing a way to load and enumerate PKCS#11
modules.

CVE-2020-29361

Multiple integer overflows

CVE-2020-29362

Heap-based buffer over-read

For Debian 9 stretch, these problems have been fixed in version
0.23.3-2+deb9u1.

We recommend that you upgrade your p11-kit packages.

For the detailed security status of p11-kit please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/p11-kit

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