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Alerts This Week
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Fedora 43: Critical Patch for GnuTLS 3.8.11 Addressing CVE-2025-9820

fedora
Calendar Grey November 23, 2025
Dist Fedora Esm H88
Update to GnuTLS 3.8.11 fixes critical issue CVE-2025-9820 in Fedora 43 with enhancements and improved security features.
Update to the 3.8.11 release with a fix for CVE-2025-9820 and several enhancements.

Summary

GnuTLS is a secure communications library implementing the SSL, TLS and DTLS

protocols and technologies around them. It provides a simple C language

application programming interface (API) to access the secure communications

protocols as well as APIs to parse and write X.509, PKCS #12, OpenPGP and

other required structures.

Update Information:

Update to the 3.8.11 release with a fix for CVE-2025-9820 and several enhancements.

Topics%20covered

Topics Covered

security advisory fedora buffer overflow critical gnutls cve-2025-9820

Change Log

* Thu Nov 20 2025 Daiki Ueno - 3.8.11-1 - Update to 3.8.11 upstream release - Resolves: rhbz#2416041

References


[ 1 ] Bug #2388236 - [abrt] Crash under gnutls_x509_trust_list_verify_crt2() (accessing GnuTLS internals from multiple threads at the same time) https://bugzilla.redhat.com/show_bug.cgi?id=2388236

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-45b1844342' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
critical
Lowest
Low
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Critical

Name: gnutls
Product: Fedora 43
Version: 3.8.11
Release: 1.fc43
URL: http://www.gnutls.org/
Summary: A TLS protocol implementation

Topics%20covered

Topics Covered

security advisory fedora buffer overflow critical gnutls cve-2025-9820

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