A libtasn1-6 security update has been released for Debian GNU/Linux 10 LTS to address an off-by-one array size issue.

DLA 3263-1: libtasn1-6 security update

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Debian LTS Advisory DLA-3263-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Chris Lamb
January 09, 2023   https://wiki.debian.org/LTS
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Package : libtasn1-6
Version : 4.13-3+deb10u1
CVE ID : CVE-2021-46848

It was discovered that there was an off-by-one array size issue in
libtasn1-6, a library to manage the generic ASN.1 data structure.

For Debian 10 buster, this problem has been fixed in version
4.13-3+deb10u1.

We recommend that you upgrade your libtasn1-6 packages.

For the detailed security status of libtasn1-6 please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/libtasn1-6

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