CVE-2024-48986 Memory corruption in n/a

High 7.5 Published Updated

A buffer overflow in MBed OS HCI parsing allows attackers to cause a denial of service via crafted packets.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2024-48986?

CVE-2024-48986 is a high-severity memory corruption vulnerability in n/a, published on 20 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-120

Which versions are affected by CVE-2024-48986?

It affects 1 product.

Products include Arm Mbed.

How do I fix CVE-2024-48986?

No fix has been published for CVE-2024-48986 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2024-48986 being exploited?

There is no known exploitation of CVE-2024-48986 in the wild and no public exploit code.

Sources

Also known as GHSA-ghhj-rq38-j6jp.

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