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.
Published 2023-09-15 20:15:10
Updated 2023-10-13 01:59:33
Source GitHub, Inc.
View at NVD,   CVE.org

Products affected by CVE-2023-40167

Exploit prediction scoring system (EPSS) score for CVE-2023-40167

0.10%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 43 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-40167

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.3
MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
3.9
1.4
NIST
5.3
MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
3.9
1.4
GitHub, Inc.
5.3
MEDIUM AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
N/A
N/A
Oracle:CPUOct2023

CWE ids for CVE-2023-40167

  • The product parses a formatted message or structure, but it does not handle or incorrectly handles a length field that is inconsistent with the actual length of the associated data.
    Assigned by: security-advisories@github.com (Primary)

References for CVE-2023-40167

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