Integer overflow in Arm Mbed
CVE-2024-48983
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.
Vulnerability class: Integer Overflow
EPSS: 0.004 (35.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Arm Mbed — versions 6.16.0
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Product)
- cve@mitre.org (Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2024-48983?
- CVE-2024-48983 is a high-severity vulnerability in Arm Mbed, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2024-11-20.
- How severe is CVE-2024-48983?
- High severity. CVSS v3 base score is 7.5 out of 10.