Description
GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. In version 4.4.0, an unauthenticated remote BGP peer can trigger a fatal panic in GoBGP by sending a specially crafted BGP UPDATE message. When the server receives a message with inconsistent attribute lengths, it improperly handles the internal state transition to a "withdraw" action, leading to a nil pointer dereference in the AdjRib.Update function. This causes the entire GoBGP process to crash, resulting in a complete loss of service availability. This issue has been patched in version 4.5.0.
Problem types
CWE-476: NULL Pointer Dereference
Product status
References
github.com/.../gobgp/security/advisories/GHSA-p3w2-64xm-833j
github.com/.../gobgp/security/advisories/GHSA-p3w2-64xm-833j
github.com/osrg/gobgp/releases/tag/v4.5.0