CVE-2024-40493

Published Oct 22, 2024

Last updated 23 days ago

CVSS critical 9.8

Overview

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`.
Source: cve@mitre.org
NVD status: Analyzed

Risk scores

CVSS 3.1

Type: Primary
Base score: 9.8
Impact score: 5.9
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: CRITICAL

Weaknesses

nvd@nist.gov: CWE-476
134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-476

Hype score: Not currently trending

CVE-2024-40493 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 potential… https://t.co/C8w8f7I6Sc
@CVEnew
23 Oct 2024
76 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:keith-cullen:freecoap:1.0:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "E8787D78-015B-4E25-BBCB-B0748567705B"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References