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Alerts This Week
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Fedora 43 BIRD Critical Bug Fixes and Enhancements 2026-564680920c

fedora
Calendar Grey June 17, 2026
Dist Fedora Esm H88
Critical Fedora 43 BIRD update resolves multiple crashes and issues in BGP and OSPF protocols, enhancing stability.
BIRD 3.3.1 (2026-06-09) BGP: Fix crash when incoming connection for disabled protocol arrives BGP: Fix parsing labelled NLRIs with no next hop BGP: Fix cork behavior in collision w...

Summary

BIRD is a dynamic IP routing daemon supporting both, IPv4 and IPv6, Border

Gateway Protocol (BGPv4), Routing Information Protocol (RIPv2, RIPng), Open

Shortest Path First protocol (OSPFv2, OSPFv3), Babel Routing Protocol (Babel),

Bidirectional Forwarding Detection (BFD), IPv6 router advertisements, static

routes, inter-table protocol, command-line interface allowing on-line control

and inspection of the status of the daemon, soft reconfiguration as well as a

powerful language for route filtering.

Update Information:

BIRD 3.3.1 (2026-06-09) BGP: Fix crash when incoming connection for disabled protocol arrives BGP: Fix parsing labelled NLRIs with no next hop BGP: Fix cork behavior in collision with graceful restart BGP: Fix crash on dumping pending export statistics BGP: Fix several issues in Flowspec handling BMP/Nest: No refeed after listener or protocol restart MPLS: Fix crash on reconfiguring CS_DOWN channel OSPF: Fix handling of LLS data length field OSPF: Fix OOB read in authentication check OSPF: Fix OOB read in Router-LSA validation Proto: Fix regression in protocol enabling Channel: Fix refeeds and reloads during graceful restart Export: Mitigate duplicate withdrawals Filters: Fix crash when setting gateway on recursive nexthops Filters: Fix path matching when AS path is too long Table: Fix RCU double-anchor Table: Propagate thread group config into aux RCU: Catch leaks sooner See also: https://trubka.network.cz/pipermail/bird-users/2026-June/018790.html

Topics%20covered

Topics Covered

security advisory security issue fedora critical crash bgp

Change Log

* Wed Jun 10 2026 Robert Scheck - 3.3.1-1 - Upgrade to 3.3.1 (#2487252)

References

Fedora Update Notification FEDORA-2026-564680920c 2026-06-17 08:24:34.389300+00:00 Name : bird Product : Fedora 43 Version : 3.3.1 Release : 1.fc43 URL : https://bird.nic.cz/ Summary : BIRD Internet Routing Daemon Description : BIRD is a dynamic IP routing daemon supporting both, IPv4 and IPv6, Border Gateway Protocol (BGPv4), Routing Information Protocol (RIPv2, RIPng), Open Shortest Path First protocol (OSPFv2, OSPFv3), Babel Routing Protocol (Babel), Bidirectional Forwarding Detection (BFD), IPv6 router advertisements, static routes, inter-table protocol, command-line interface allowing on-line control and inspection of the status of the daemon, soft reconfiguration as well as a powerful language for route filtering.

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-564680920c' 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
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Name: bird
Product: Fedora 43
Version: 3.3.1
Release: 1.fc43
URL: https://bird.nic.cz/
Summary: BIRD Internet Routing Daemon

Topics%20covered

Topics Covered

security advisory security issue fedora critical crash bgp

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