An ecdsautils security update has been released for Debian GNU/Linux 10 and 11 to address an issue that can be used to forge signatures.

DSA 5132-1: ecdsautils security update

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Debian Security Advisory DSA-5132-1 security@debian.org
  https://www.debian.org/security/ Moritz Muehlenhoff
May 08, 2022   https://www.debian.org/security/faq
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Package : ecdsautils
CVE ID : CVE-2022-24884

It was discovered that ecdsautils, a collection of ECDSA elliptic curve
cryptography CLI tools verified some cryptographic signatures incorrectly:
A signature consisting only of zeroes was always considered valid,
making it trivial to forge signatures.

For the oldstable distribution (buster), this problem has been fixed
in version 0.3.2+git20151018-2+deb10u1.

For the stable distribution (bullseye), this problem has been fixed in
version 0.3.2+git20151018-2+deb11u1.

We recommend that you upgrade your ecdsautils packages.

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

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/