Debian Security Advisory

DLA-2707-1 sogo -- LTS security update

Date Reported:
12 Jul 2021
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2021-33054.
More information:

One security issue has been discovered in sogo.

SOGo does not validate the signatures of any SAML assertions it receives. Any actor with network access to the deployment could impersonate users when SAML is the authentication method.

For Debian 9 stretch, this problem has been fixed in version 3.2.6-2+deb9u1.

We recommend that you upgrade your sogo packages.

ATTENTION! If you are using SAML authentication, use sogo-tool to immediately delete users sessions and force all users to visit the login page:

sogo-tool -v expire-sessions 1

systemctl restart memcached

For the detailed security status of sogo 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: