Bug 2513812

Summary:	CVE-2026-73143 svxlink: svxlink: Denial of service via malformed rtl_tcp greeting [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Thibault Guittet <tguittet>
Component:	svxlink	Assignee:	Scott K Logan <logans>
Status:	NEW ---	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	high
Version:	rawhide	CC:	logans
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["33f165cd-b05a-4e45-aa39-7eb9171710a5"]}
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Doc Text:		Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2513798

Description Thibault Guittet 2026-08-11 07:37:35 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.

A flaw was found in svxlink's RtlTcp component. A malformed rtl_tcp greeting from a remote source triggers an exit(1) call, causing the entire svxlink daemon to terminate. A remote attacker can exploit this to achieve a full denial of service of the svxlink repeater controller. Fixed in version 26.05.1.