Bug 2437989 - CVE-2026-1584 gnutls: gnutls: Remote Denial of Service via crafted ClientHello with invalid PSK binder [fedora-43]
Summary: CVE-2026-1584 gnutls: gnutls: Remote Denial of Service via crafted ClientHell...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: gnutls
Version: 43
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Red Hat Crypto Team
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["60fd1d70-5f05-41f6-8e4a-0...
Depends On:
Blocks: CVE-2026-1584
TreeView+ depends on / blocked
 
Reported: 2026-02-09 14:34 UTC by Sandipan Roy
Modified: 2026-02-12 00:53 UTC (History)
6 users (show)

Fixed In Version: gnutls-3.8.12-1.fc43
Clone Of:
Environment:
Last Closed: 2026-02-12 00:53:12 UTC
Type: ---
Embargoed:
fedora-admin-xmlrpc: mirror+

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System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker FC-3121 0 None None None 2026-02-09 14:36:28 UTC

Description Sandipan Roy 2026-02-09 14:34:50 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Comment 1 Fedora Update System 2026-02-10 17:30:18 UTC 
FEDORA-2026-ef7170c9f6 (gnutls-3.8.12-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-ef7170c9f6
Comment 2 Fedora Update System 2026-02-11 01:11:58 UTC 
FEDORA-2026-ef7170c9f6 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-ef7170c9f6`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-ef7170c9f6

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 3 Fedora Update System 2026-02-12 00:53:12 UTC 
FEDORA-2026-ef7170c9f6 (gnutls-3.8.12-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.
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