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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Daurnimator | lua-http | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | lua-http | 0.4-2 | — |
| Debian 13 | lua-http | 0.4-2 | — |
| Debian 12 | lua-http | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | lua-http | No fix yet | — |
| Ubuntu 26.04 LTS | lua-http | No fix yet | — |
| Ubuntu 25.10 | lua-http | No fix yet | — |
| Ubuntu 24.04 LTS | lua-http | No fix yet | — |
| Ubuntu 22.04 LTS | lua-http | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | lua-http | No fix yet | — |
| Ubuntu 18.04 LTS | lua-http | No fix yet | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | lua-http | 0.4-r2 | — |
| Alpine v3.23 | lua-http | 0.4-r2 | — |
| Alpine v3.22 | lua-http | 0.4-r2 | — |
| Alpine v3.21 | lua-http | 0.4-r2 | — |
| Alpine v3.20 | lua-http | 0.4-r2 | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | lua-http | 0.4-r2 | — |
| Alpine v3.18 | lua-http | 0.4-r2 | — |
| Alpine v3.17 | lua-http | 0.4-r2 | — |
References
- https://github.com/daurnimator/lua-http/commit/ddab2835c583d45dec62680ca8d3cbde55e0bae6 patch
- https://cert.pl/posts/2023/09/CVE-2023-4540/ third-party-advisory
- https://cert.pl/en/posts/2023/09/CVE-2023-4540/ third-party-advisory