Samsung Galaxy S6 SM-G920F G920FXXU5EQH7 bcmdhd4358 Wi-Fi Driver dhd_pcie.c dhd_bus_flow_ring_create_response memory corruption

Summaryinfo

A vulnerability was found in Samsung Galaxy S6 SM-G920F G920FXXU5EQH7. It has been classified as critical. This vulnerability affects the function dhd_bus_flow_ring_create_response of the file drivers/net/wireless/bcmdhd4358/dhd_pcie.c of the component bcmdhd4358 Wi-Fi Driver. The manipulation leads to memory corruption. This vulnerability is documented as CVE-2018-14856. The attack requires being on the local network. There is not any exploit available.

Detailsinfo

A vulnerability was found in Samsung Galaxy S6 SM-G920F G920FXXU5EQH7 (Smartphone Operating System) and classified as critical. This issue affects the function dhd_bus_flow_ring_create_response of the file drivers/net/wireless/bcmdhd4358/dhd_pcie.c of the component bcmdhd4358 Wi-Fi Driver. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in dhd_bus_flow_ring_create_response in drivers/net/wireless/bcmdhd4358/dhd_pcie.c in the bcmdhd4358 Wi-Fi driver on the Samsung Galaxy S6 SM-G920F G920FXXU5EQH7 allow an attacker (who has obtained code execution on the Wi-Fi) chip to cause the device driver to perform invalid memory accesses. The Samsung ID is SVE-2018-11785.

The bug was discovered 12/11/2018. The weakness was released 12/17/2018 (Website). The advisory is shared at github.com. The identification of this vulnerability is CVE-2018-14856 since 08/02/2018. The exploitation is known to be easy. Access to the local network is required for this attack. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k.

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

Entries connected to this vulnerability are available at VDB-128019 and VDB-128020. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Smartphone Operating System

Vendor

• Samsung

Name

• Galaxy S6

Version

• SM-G920F G920FXXU5EQH7

License

• commercial

Website

• Vendor: https://www.samsung.com/

CPE 2.3info

• 🔍

CPE 2.2info

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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