CVE-2023-40167
This is more permissive than allowed by the RFC and other servers routinely reject such requests with 400 responses.
Does this matter?
Lower severity and a low EPSS score (1.07%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 1.07% probability · 63th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-130
- Affected
- eclipse/jetty · debian/debian linux
- Source
- security-advisories@github.com
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 List, Third 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 List, Third Party Advisory
- https://www.debian.org/security/2023/dsa-5507Third Party Advisory
- https://www.rfc-editor.org/rfc/rfc9110#section-8.6Technical Description
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.