A lasso security update has been released for Debian GNU/Linux 9 LTS to address a vulnerability which results to a improper verification of a cryptographic signature.

DLA 2684-1: lasso security update

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Debian LTS Advisory DLA-2684-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Yadd
June 10, 2021   https://wiki.debian.org/LTS
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Package : lasso
Version : 2.5.0-5+deb9u1
CVE ID : CVE-2021-28091

A vulnerability was discovered in lasso, a library for Liberty Alliance
and SAML protocols, which results to a improper verification of a
cryptographic signature.

For Debian 9 stretch, this problem has been fixed in version
2.5.0-5+deb9u1.

We recommend that you upgrade your lasso packages.

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

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