CVE-2023-39540

Published Feb 20, 2024

Last updated 3 months ago

CVSS medium 5.9

Overview

Description: A denial of service vulnerability exists in the ICMP and ICMPv6 parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted network packet can lead to an out-of-bounds read. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability concerns a denial of service within the parsing an IPv4 ICMP packet.
Source: talos-cna@cisco.com
NVD status: Analyzed

Risk scores

CVSS 3.1

Type: Primary
Base score: 5.9
Impact score: 3.6
Exploitability score: 2.2
Vector string: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity: MEDIUM

Weaknesses

talos-cna@cisco.com: CWE-126
nvd@nist.gov: CWE-125

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:weston-embedded:uc-tcp-ip:3.06.01:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "27A185C2-4CE9-475C-B0F8-F48EFF1CAEFF"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References

Sources include official advisories and independent security research.