CVE-2023-4540

DoS in lua-http library

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. Such a request causes the program to enter an infinite loop. This issue affects lua-http: all versions before commit ddab283.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.10%
Third-Party Advisory cert.pl Third-Party Advisory cert.pl
Affected: Daurnimator lua-http
Published at:
Updated at:

References

Link Tags
https://github.com/daurnimator/lua-http/commit/ddab2835c583d45dec62680ca8d3cbde55e0bae6 patch
https://cert.pl/posts/2023/09/CVE-2023-4540/ third party advisory patch
https://cert.pl/en/posts/2023/09/CVE-2023-4540/ third party advisory
https://https://cert.pl/en/posts/2023/09/CVE-2023-4540/

Frequently Asked Questions

What is the severity of CVE-2023-4540?
CVE-2023-4540 has been scored as a high severity vulnerability.
How to fix CVE-2023-4540?
To fix CVE-2023-4540, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-4540 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-4540 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-4540?
CVE-2023-4540 affects Daurnimator lua-http.
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