Debian Security Advisory
DLA-2759-1 gnutls28 -- LTS security update
- Date Reported:
- 18 Sep 2021
- Affected Packages:
- Security database references:
- In the Debian bugtracking system: Bug 961889.
- More information:
GnuTLS, a portable cryptography library, fails to validate alternate trust chains in some conditions. In particular this breaks connecting to servers that use Let's Encrypt certificates, starting 2021-10-01.
For Debian 9 stretch, this problem has been fixed in version 3.5.8-5+deb9u6.
We recommend that you upgrade your gnutls28 packages.
For the detailed security status of gnutls28 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/gnutls28
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