Vulnerability Description
Jetty is a Java based web server and servlet engine. Prior to versions 9.4.52, 10.0.16, 11.0.16, and 12.0.1, Jetty accepts the `+` character proceeding the content-length value in a HTTP/1 header field. This is more permissive than allowed by the RFC and other servers routinely reject such requests with 400 responses. There is no known exploit scenario, but it is conceivable that request smuggling could result if jetty is used in combination with a server that does not close the connection after sending such a 400 response. Versions 9.4.52, 10.0.16, 11.0.16, and 12.0.1 contain a patch for this issue. There is no workaround as there is no known exploit scenario.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Eclipse | Jetty | >= 9.0.0, < 9.4.52 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://github.com/eclipse/jetty.project/security/advisories/GHSA-hmr7-m48g-48f6Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00039.htmlMailing ListThird Party Advisory
- https://www.debian.org/security/2023/dsa-5507Third Party Advisory
- https://www.rfc-editor.org/rfc/rfc9110#section-8.6Technical Description
- https://github.com/eclipse/jetty.project/security/advisories/GHSA-hmr7-m48g-48f6Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00039.htmlMailing ListThird Party Advisory
- https://www.debian.org/security/2023/dsa-5507Third Party Advisory
- https://www.rfc-editor.org/rfc/rfc9110#section-8.6Technical Description
FAQ
What is CVE-2023-40167?
CVE-2023-40167 is a vulnerability with a CVSS score of 5.3 (MEDIUM). Jetty is a Java based web server and servlet engine. Prior to versions 9.4.52, 10.0.16, 11.0.16, and 12.0.1, Jetty accepts the `+` character proceeding the content-length value in a HTTP/1 header fiel...
How severe is CVE-2023-40167?
CVE-2023-40167 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-40167?
Check the references section above for vendor advisories and patch information. Affected products include: Eclipse Jetty, Debian Debian Linux.