7.5
HIGH
CVE-2023-4540
Daurnimator Lua-Http Excessive Allocation Denial of Service
Description

Improper Handling of Exceptional Conditions vulnerability in Daurnimator lua-http library allows Excessive Allocation and a denial of service (DoS) attack to be executed by sending a properly crafted request to the server. This issue affects lua-http: all versions before commit ddab283.

INFO

Published Date :

Sept. 5, 2023, 8:15 a.m.

Last Modified :

Oct. 13, 2023, 1:30 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-4540 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Daurnimator lua-http
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-4540.

URL Resource
https://cert.pl/posts/2023/09/CVE-2023-4540/ Patch Third Party Advisory
https://github.com/daurnimator/lua-http/commit/ddab2835c583d45dec62680ca8d3cbde55e0bae6 Patch
https://https://cert.pl/en/posts/2023/09/CVE-2023-4540/ Broken Link

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-4540 vulnerability anywhere in the article.

  • cert.pl
Vulnerability in lua-http library

CVE ID CVE-2023-4540 Publication date 05 September 2023 Vendor Daurnimator Product lua-http Vulnerable versions All including 0.4 before ddab283 commit Vulnerability type (CWE) Improper Handling of Ex ... Read more

Published Date: Sep 05, 2023 (1 year ago)

The following table lists the changes that have been made to the CVE-2023-4540 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Oct. 13, 2023

    Action Type Old Value New Value
    Changed Reference Type https://https://cert.pl/en/posts/2023/09/CVE-2023-4540/ No Types Assigned https://https://cert.pl/en/posts/2023/09/CVE-2023-4540/ Broken Link
  • CVE Modified by [email protected]

    Oct. 04, 2023

    Action Type Old Value New Value
    Added Reference https://https://cert.pl/en/posts/2023/09/CVE-2023-4540/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Sep. 08, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://cert.pl/posts/2023/09/CVE-2023-4540/ No Types Assigned https://cert.pl/posts/2023/09/CVE-2023-4540/ Patch, Third Party Advisory
    Changed Reference Type https://github.com/daurnimator/lua-http/commit/ddab2835c583d45dec62680ca8d3cbde55e0bae6 No Types Assigned https://github.com/daurnimator/lua-http/commit/ddab2835c583d45dec62680ca8d3cbde55e0bae6 Patch
    Added CWE NIST CWE-755
    Added CPE Configuration OR *cpe:2.3:a:daurnimator:lua-http:0.4:*:*:*:*:lua:*:*
  • CVE Modified by [email protected]

    Sep. 05, 2023

    Action Type Old Value New Value
    Changed Description Improper Handling of Exceptional Conditions vulnerability in Daurnimator HTTP Library for Lua allows Excessive Allocation.This issue affects HTTP Library for Lua: before commit ddab283. Improper Handling of Exceptional Conditions vulnerability in Daurnimator lua-http library allows Excessive Allocation and a denial of service (DoS) attack to be executed by sending a properly crafted request to the server. This issue affects lua-http: all versions before commit ddab283.
    Added Reference https://cert.pl/posts/2023/09/CVE-2023-4540/ [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-4540 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-4540 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.09 }} 0.03%

score

0.37156

percentile

CVSS31 - Vulnerability Scoring System
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