Описание
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.
A flaw was found in GoBGP 4.4.0. A crafted BGP UPDATE with inconsistent attribute lengths mishandles the withdraw state transition in AdjRib.Update, causing a nil pointer dereference and full process crash. Fixed in GoBGP 4.5.0.
Отчет
GoBGP is vulnerable to denial of service when an unauthenticated remote BGP peer sends a BGP UPDATE with inconsistent attribute lengths. The server mishandles the internal withdraw transition in AdjRib.Update and panics, taking down the daemon. No Red Hat products ship GoBGP today; risk is confined to external or custom BGP deployments on affected 4.4.0 versions.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat OpenShift Container Platform 4 | openshift4/metallb-rhel8 | Not affected |
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Дополнительная информация
Статус:
7.5 High
CVSS3
Связанные уязвимости
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.
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.
GoBGP is an open source Border Gateway Protocol (BGP) implementation i ...
GoBGP has a panic in AdjRib.Update via malformed BGP Update message (Nil Pointer Dereference)
7.5 High
CVSS3