CVE-2023-37459
Vulnerability from cvelistv5
Published
2023-09-15 19:19
Modified
2024-09-25 18:04
Severity ?
EPSS score ?
Summary
Out-of-bounds read when processing a received IPv6 packet
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
▼ | contiki-ng | contiki-ng |
Version: <= 4.9 |
|
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In versions 4.9 and prior, when a packet is received, the Contiki-NG network stack attempts to start the periodic TCP timer if it is a TCP packet with the SYN flag set. But the implementation does not first verify that a full TCP header has been received. Specifically, the implementation attempts to access the flags field from the TCP buffer in the following conditional expression in the `check_for_tcp_syn` function. For this reason, an attacker can inject a truncated TCP packet, which will lead to an out-of-bound read from the packet buffer. As of time of publication, a patched version is not available. 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En las versiones 4.9 y anteriores, cuando se recibe un paquete, la pila de red Contiki-NG intenta iniciar el temporizador TCP peri\u00f3dico si se trata de un paquete TCP con el indicador SYN configurado. Pero la implementaci\u00f3n no verifica primero que se haya recibido un encabezado TCP completo. Espec\u00edficamente, la implementaci\u00f3n intenta acceder al campo de banderas desde el b\u00fafer TCP en la siguiente expresi\u00f3n condicional en la funci\u00f3n `check_for_tcp_syn`. Por este motivo, un atacante puede inyectar un paquete TCP truncado, lo que provocar\u00e1 una lectura fuera de los l\u00edmites del b\u00fafer de paquetes. Al momento de la publicaci\u00f3n, no hay una versi\u00f3n parcheada disponible. 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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.