Samsung Exynos Modem 5300 Firmware

An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modems with chipset Exynos 9820, 9825, 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 9110, W920, W930, Modem 5123, and Modem 5300. A USAT out-of-bounds write due to a heap buffer overflow can lead to a Denial of Service.

An issue was discovered in Samsung Semiconductor Mobile Processor and Modem Exynos 9820, Exynos 9825, Exynos 980, Exynos 990, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos 9110, Exynos W920, Exynos W930, Exynos Modem 5123, Exynos Modem 5300. The baseband software does not properly check a pointer specified by the SM (Session Management module), which can lead to Denial of Service (Untrusted Pointer Dereference).

An issue was discovered in Samsung Semiconductor Mobile Processor and Modem Exynos 9820, Exynos 9825, Exynos 980, Exynos 990, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos 9110, Exynos W920, Exynos W930, Exynos Modem 5123, Exynos Modem 5300. The baseband software does not properly check a pointer specified by the CC (Call Control module), which can lead to Denial of Service (Untrusted Pointer Dereference).

An issue was discovered in Samsung Exynos Mobile Processor, Automotive Processor, and Modem (Exynos 9820, Exynos 980, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos Modem 5123, Exynos Modem 5300, and Exynos Auto T5123. In the NAS Task, an improperly implemented security check for standard can disallow desired services for a while via consecutive NAS messages.

An issue was discovered in Samsung Mobile Processor, and Modem Exynos 9820, Exynos 9825, Exynos 980, Exynos 990, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos Modem 5123, Exynos Modem 5300. The baseband software does not properly check replay protection specified by the NAS (Non-Access-Stratum) module. This can lead to denial of service.

An issue was discovered in Samsung Mobile Processor, and Modem Exynos 9820, Exynos 9825, Exynos 980, Exynos 990, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos Modem 5123, Exynos Modem 5300. The baseband software does not properly check format types specified by the NAS (Non-Access-Stratum) module. This can lead to bypass of authentication.

A vulnerability in Samsung Exynos Modem 5300 allows a Man-in-the-Middle (MITM) attacker to downgrade the security mode of packets going to the victim, enabling the attacker to send messages to the victim in plaintext.

A vulnerability was discovered in SS in Samsung Mobile Processor, Wearable Processor, and Modems with versions Exynos 9820, Exynos 9825, Exynos 980, Exynos 990, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos 2400, Exynos 9110, Exynos W920, Exynos W930, Exynos Modem 5123, and Exynos Modem 5300 that involves a NULL pointer dereference which can cause abnormal termination of a mobile phone via a manipulated packet.

An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, Exynos 990, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos 9110, Exynos W920, Exynos Modem 5123, Exynos Modem 5300. The baseband software does not properly check format types specified by the RRC. This can lead to a lack of encryption.

An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 9820, 9825, 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 9110, W920, W930, Modem 5123, Modem 5300. There is an out-of-bounds write due to a heap overflow in the GPRS protocol.

An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 9820, 9825, 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 9110, W920, W930, W1000, Modem 5123, and Modem 5300. The UE incorrectly handles a malformed uplink scheduling message, resulting in an information leak of the UE.