curl: [Critical] Curl CVE-2023-38545 vulnerability code changes are disclosed on the internet

Summary: Curl CVE-2023-38545 vulnerability code changes are disclosed on the internet Steps To Reproduce: To replicate the issue, I have searched in the Bard about this vulnerability. It disclosed what this vulnerability is about, code changes made for this fix, who made these changes, commit details etc even though this information is not released yet on the internet. In addition to it, I was able to easily craft the exploit based on the information available. Remove this information from the internet ASAP!!!! Vulnerability information: The vulnerability is caused by an integer overflow in the curl_easy_setopt() function. The vulnerability can be exploited by an attacker to execute arbitrary code on a vulnerable system. The vulnerability is fixed in curl 8.4.0 and higher. Code fixes: The following code changes fixed CVE-2023-38545 in curl: C / * CVE-2023-38545: Integer overflow in curl_easy_setopt() * * This vulnerability could be exploited to cause a denial-of-service attack or * to execute arbitrary code on the victim's system. * * The following code changes fix this vulnerability by checking the value of the * timeout argument before passing it to the internal curl function. / include "curl.h" / * curl_easy_setopt() * * Sets an option value for a curl handle. * * @param handle The curl handle. * @param option The option to set. * @param param The value to set the option to. * * @return CURLE_OK on success, or a curl error code on failure. / CURLcode...

nmap -sV --script vuln -p- <target-network>

tail -f /var/log/suricata/fast.log | grep <cve>

Check Vendor Security Advisory Bulletin

title: Detect Exploitation - curl: [Critical] Curl CVE-2023-38545 vulnerability code changes are disclosed on the internet
id: 283d8743-0e5d-4a7d-83b4-99204df28c8d
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
  - https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-24
logsource:
  category: network_connection
  product: any
detection:
  selection:
      CommandLine|contains:
        - 'exploit'
  condition: selection
falsepositives:
  - Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
  - attack.initial_access

rule CTI_Threat_Indicator {
    meta:
        author = "iShareStuff CTI Automated Detection Engine"
        date = "2026-09-24"
        description = "YARA Signature for "
    strings:
        $str = "curl: [Critical] Curl CVE-2023" ascii wide
    condition:
        any of them
}