bgp protocol parsing

About this tag
The bgp protocol parsing tag covers discussions about vulnerabilities and bugs in BGP implementations, particularly in FRRouting (FRR). A key topic is CVE-2023-46753, a flaw in FRR's BGP daemon where a specially crafted BGP UPDATE message could cause a crash due to insufficient input validation, posing an availability risk for networks. This tag is relevant for network administrators and IT professionals managing BGP routing, especially those using open-source routing suites like FRR. Content focuses on patching, mitigation, and understanding parsing errors in BGP protocol handling.
  1. CVE-2023-46753: FRR BGP Update Crash Patch and Mitigation

    FRRouting’s BGP daemon contained a subtle input‑validation bug that allowed a single, specially crafted BGP UPDATE to crash the process—tracked as CVE‑2023‑46753—affecting FRR releases up to and including 9.0.1 and creating a real-world availability risk for networks that rely on FRR for BGP...