medium5.9
CVE-2024-21647
Puma HTTP Request/Response Smuggling vulnerability
Impact
### Impact Prior to versions 6.4.2 and 5.6.8, puma exhibited dangerous behavior when parsing chunked transfer encoding bodies. Fixed versions limit the size of chunk extensions. Without this limit, an attacker could cause unbounded resource (CPU, network bandwidth) consumption. ### Patches The vulnerability has been fixed in 6.4.2 and 5.6.8. ### Workarounds No known workarounds. ### References * [HTTP Request Smuggling](https://portswigger.net/web-security/request-smuggling) * Open an issue in [Puma](https://github.com/puma/puma) * See our [security policy](https://github.com/puma/puma/security/policy)
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| rubygems | puma | >= 6.0.0, < 6.4.2 | 6.4.2 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Puma | Puma | before 5.6.8 from 6.0.0 before 6.4.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/puma/puma/commit/5fc43d73b6ff193325e657a24ed76dec79133e93
- https://github.com/puma/puma/security/advisories/GHSA-c2f4-cvqm-65w2
- https://lists.debian.org/debian-lts-announce/2024/11/msg00004.html
- https://github.com/advisories/GHSA-c2f4-cvqm-65w2
- https://nvd.nist.gov/vuln/detail/CVE-2024-21647
- https://github.com/puma/puma/commit/60d5ee3734adc8cee85c3f0561af392448fe19b7
- https://github.com/puma/puma/commit/bbb880ffb6debbfdea535b4b3eb2204d49ae151d
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puma/CVE-2024-21647.yml