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. Certain events cause a callback, the logic for which allocates a buffer (the length of which is determined by looking up the event type in a table). The subsequent write operation, however, copies the amount of data specified in the packet header, which may lead to a buffer overflow. 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.
History

Tue, 26 Nov 2024 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Mbed
Mbed mbed
CPEs cpe:2.3:o:mbed:mbed:6.16.0:*:*:*:*:*:*:*
Vendors & Products Mbed
Mbed mbed
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 22 Nov 2024 22:00:00 +0000

Type Values Removed Values Added
First Time appeared Arm
Arm mbed
Weaknesses CWE-120
CPEs cpe:2.3:o:arm:mbed:6.16.0:*:*:*:*:*:*:*
Vendors & Products Arm
Arm mbed
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Wed, 20 Nov 2024 20:30:00 +0000

Type Values Removed Values Added
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. Certain events cause a callback, the logic for which allocates a buffer (the length of which is determined by looking up the event type in a table). The subsequent write operation, however, copies the amount of data specified in the packet header, which may lead to a buffer overflow. 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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-11-26T15:57:50.159Z

Reserved: 2024-10-11T00:00:00

Link: CVE-2024-48986

cve-icon Vulnrichment

Updated: 2024-11-25T20:56:50.506Z

cve-icon NVD

Status : Modified

Published: 2024-11-20T21:15:08.007

Modified: 2024-11-26T16:15:16.217

Link: CVE-2024-48986

cve-icon Redhat

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