MBed OS up to 6.16.0 HCI Packet WsfMsgAlloc buffer overflow

Summaryinfo

A vulnerability was found in MBed OS up to 6.16.0. It has been rated as critical. This affects the function WsfMsgAlloc of the component HCI Packet Handler. Performing a manipulation results in buffer overflow. This vulnerability is cataloged as CVE-2024-48983. There is no exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as critical has been found in MBed OS up to 6.16.0. This affects the function WsfMsgAlloc of the component HCI Packet Handler. 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 confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in MBed OS 6.16.0. During processing of HCI packets, the software dynamically determines the length of the packet data by reading 2 bytes from the packet header. A buffer is then allocated to contain the entire packet, the size of which is calculated as the length of the packet body determined earlier plus the header length. WsfMsgAlloc then increments this again by sizeof(wsfMsg_t). This may cause an integer overflow that results in the buffer being significantly too small to contain the entire packet. This may cause a buffer overflow of up to 65 KB . This bug is trivial to exploit for a denial of service but can generally not be exploited further because the exploitable buffer is dynamically allocated.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2024-48983 since 10/11/2024. The exploitability is told to be easy. Technical details of the vulnerability are known, but there is no available exploit.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• MBed

Name

• OS

Version

• 6.0
• 6.1
• 6.2
• 6.3
• 6.4
• 6.5
• 6.6
• 6.7
• 6.8
• 6.9
• 6.10
• 6.11
• 6.12
• 6.13
• 6.14
• 6.15
• 6.16.0

CPE 2.3info

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CPE 2.2info

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• 🔍
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