جزئیات آسیب‌پذیری

An integer underflow vulnerability in the NAS decoder of OpenAirInterface (OAI) CN5G AMF v2.2.1 allows an unauthenticated remote attacker to cause a denial of service (DoS) via crafted NAS Registration Requests containing a truncated SUCI in the 5GS Mobile Identity IE. Insufficient length validation in the DecodeSuci() function results in an out-of-bounds heap read, causing the AMF process to crash.

• https://gist.github.com/hackeryounow/aa1df06bb785bda0952a30939dcb9a76
• https://github.com/openairinterface/oai-cn5g-amf/pull/26/commits/c5178c644f87c5ef8828353192fea464d977e17b
• https://github.com/openairinterface/oai-cn5g-ausf/issues/7