Bug 2497564

Summary: CVE-2026-11352 rpi-imager: curl/libcurl: Remote denial of service via QUIC UDP receive function vulnerability [fedora-all]
Product: [Fedora] Fedora Reporter: Jon Moroney <jmoroney>
Component: rpi-imagerAssignee: Felix Wang <topazus>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: 45CC: nixuser, topazus
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["e4042bda-17e6-4e7c-9f2d-fc2fbb3379c7"]}
Fixed In Version: Doc Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2496757    

Description Jon Moroney 2026-07-06 22:46:14 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.

An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server
to trigger a remote denial of service against a curl or libcurl client.
Because the helper function discards zero-length UDP datagrams before counting
them toward the per-call packet budget, a connected QUIC peer can continuously
stream empty datagrams to indefinitely stall the client.

Comment 1 Aoife Moloney 2026-08-17 15:15:14 UTC
This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.