CVE-2023-50803 Denial of service in n/a

Low 3.7 Published 5 Jun 2024 Updated 26 Nov 2024

Attackers can cause denial of service in Samsung Exynos devices by exploiting improper replay protection checks in the baseband software.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2023-50803?

CVE-2023-50803 is a low-severity denial of service vulnerability in Samsung Exynos 1080 Firmware, published on 5 Jun 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Which versions are affected by CVE-2023-50803?

It affects 13 products.

Products include Samsung Exynos 1080 Firmware, Samsung Exynos 1280 Firmware, Samsung Exynos 1330 Firmware, Samsung Exynos 1380 Firmware, Samsung Exynos 2100 Firmware, Samsung Exynos 2200 Firmware and 7 more.

How do I fix CVE-2023-50803?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-50803 being exploited?

There is no known exploitation of CVE-2023-50803 in the wild and no public exploit code.

All Samsung Exynos 1080 Firmware vulnerabilities

Sources

Also known as A-308437315, GHSA-phfr-2xpr-3pxm, PUB-A-308437315.