CVE-2024-40493

CRITICAL

9.8

Description

Null Pointer Dereference in `coap_client_exchange_blockwise2` function in Keith Cullen FreeCoAP 1.0 allows remote attackers to cause a denial of service and potentially execute arbitrary code via a specially crafted CoAP packet that causes `coap_msg_get_payload(resp)` to return a null pointer, which is then dereferenced in a call to `memcpy`.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published10/22/2024

Last Modified10/25/2024

Sourcenvd

Honeypot Sightings0

Affected Products

keith-cullen:freecoap

Weaknesses (CWE)

CWE-476CWE-476

References

https://gist.github.com/dqp10515/fe80005e2fb58ed8ada178ac017e4ad4(cve@mitre.org)

https://github.com/keith-cullen/FreeCoAP/issues/37(cve@mitre.org)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.