CVE-2024-48982

Description

An issue was discovered in MBed OS 6.16.0. Its hci parsing software dynamically determines the length of certain hci packets by reading a byte from its header. This value is assumed to be greater than or equal to 3, but the software doesn't ensure that this is the case. Supplying a length less than 3 leads to a buffer overflow in a buffer that is allocated later. It is simultaneously possible to cause another integer overflow by supplying large length values because the provided length value is increased by a few bytes to account for additional information that is supposed to be stored there. This bug is trivial to exploit for a denial of service but is not certain to suffice to bring the system down and can generally not be exploited further because the exploitable buffer is dynamically allocated.

Weakness classification

• nvd@nist.gov: CWE-120
• 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-120

Primary references

• cve@mitre.org — Product
• cve@mitre.org — Issue Tracking, Patch, Vendor Advisory