CVE-2023-48698 Azure RTOS USBX Remote Code Execution Vulnerability

What is CVE-2023-48698?

CVE-2023-48698 is a medium-severity use after free vulnerability in azure-rtos usbx, published on 5 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Azure RTOS USBX is a USB host, device, and on-the-go (OTG) embedded stack, that is fully integrated with Azure RTOS ThreadX. An attacker can cause remote code execution due to expired pointer dereference vulnerabilities in Azure RTOS USBX. The affected components include functions/processes in host stack and host classes, related to device linked classes, GSER and HID in RTOS v6.2.1 and below. The fixes have been included in USBX release 6.3.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Weakness: CWE-825, CWE-754

Which versions are affected by CVE-2023-48698?

It affects 1 product.

Products include Eclipse Threadx Usbx.

How do I fix CVE-2023-48698?

No fix has been published for CVE-2023-48698 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2023-48698 being exploited?

There is no known exploitation of CVE-2023-48698 in the wild and no public exploit code.

Other vulnerabilities in azure-rtos usbx

• CVE-2022-29246 Potential buffer overflow in function DFU upload in Azure RTOS USBX Critical 9.8
• CVE-2022-39293 Azure RTOS USBX Host PIMA vulnerable to read integer underflow with buffer overflow High 8.6
• CVE-2022-36063 USBX Host CDC ECM integer underflow with buffer overflow High 7.6
• CVE-2022-29223 Buffer overflow on HUB descriptor in Azure RTOS USBX High 7.5
• CVE-2023-48695 Azure RTOS USBX Remote Code Execution Vulnerability High 7.2

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-grhp-f66q-x857.