Samsung Exynos Auto T5123 RLC Module buffer overflow

Summaryinfo

A vulnerability was found in Samsung Exynos 9610, Exynos 9820, Exynos 980, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos 9110, Exynos W920, Exynos Modem 5123, Exynos Modem 5300 and Exynos Auto T5123. It has been classified as critical. The affected element is an unknown function of the component RLC Module. Performing a manipulation results in buffer overflow. This vulnerability is reported as CVE-2023-41112. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, was found in Samsung Exynos 9610, Exynos 9820, Exynos 980, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos 9110, Exynos W920, Exynos Modem 5123, Exynos Modem 5300 and Exynos Auto T5123. This affects an unknown code block of the component RLC Module. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on availability. The summary by CVE is:

An issue was discovered in Samsung Mobile Processor, Wearable Processor, Automotive Processor, and Modem (Exynos 9810, 9610, 9820, 980, 850, 1080, 2100, 2200, 1280, 1380, 1330, 9110, W920, Modem 5123, Modem 5300, and Auto T5123). A buffer copy, without checking the size of the input, can cause abnormal termination of a mobile phone. This occurs in the RLC task and RLC module.

The weakness was disclosed 11/08/2023. It is possible to read the advisory at semiconductor.samsung.com. This vulnerability is uniquely identified as CVE-2023-41112 since 08/23/2023. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/31/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-45631). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• Samsung

Name

• Exynos 850
• Exynos 980
• Exynos 1080
• Exynos 1280
• Exynos 1330
• Exynos 1380
• Exynos 2100
• Exynos 2200
• Exynos 9110
• Exynos 9610
• Exynos 9820
• Exynos Auto T5123
• Exynos Modem 5123
• Exynos Modem 5300
• Exynos W920

License

• commercial

Website

• Vendor: https://www.samsung.com/

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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