Debian Security Advisory

DLA-2684-1 lasso -- LTS security update

Date Reported:
10 Jun 2021
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2021-28091.
More information:

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:

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: