Vulnerability in Daurnimator Lua-Http
CVE-2023-4540
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.011 (64.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.011 · change: +0.002
Affected products
- Daurnimator Lua-Http — versions 0.4, 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/daurnimator/lua-http/commit/ddab2835c583d45dec62680ca8d3cbde55e0bae6 (Patch, patch)
- cert.pl/posts/2023/09/CVE-2023-4540/ (Patch, Third Party Advisory, third-party-advisory)
- cert.pl/en/posts/2023/09/CVE-2023-4540/ (third-party-advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-4540?
- CVE-2023-4540 is a high-severity vulnerability in Daurnimator Lua-Http, classified under Improper Handling of Exceptional Conditions. CVSS score: 7.5/10. Published 2023-09-05.
- How severe is CVE-2023-4540?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2023-4540 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.