CVE-2023-36478 — Eclipse Jetty provides a web server and servlet container

Eclipse Jetty provides a web server and servlet container. In versions 11.0.0 through 11.0.15, 10.0.0 through 10.0.15, and 9.0.0 through 9.4.52, an integer overflow in `MetaDataBuilder.checkSize` allows for HTTP/2 HPACK header values to exceed their size limit. `MetaDataBuilder.j

01What is this vulnerability?

Eclipse Jetty provides a web server and servlet container. In versions 11.0.0 through 11.0.15, 10.0.0 through 10.0.15, and 9.0.0 through 9.4.52, an integer overflow in `MetaDataBuilder.checkSize` allows for HTTP/2 HPACK header values to exceed their size limit. `MetaDataBuilder.java` determines if a header name or value exceeds the size limit, and throws an exception if the limit is exceeded…

02Affected products

Vendor	Product	Versions
eclipse	jetty.project	>= 10.0.0, < 10.0.16, >= 11.0.0, < 11.0.16, >= 9.3.0, < 9.4.53

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-10-10T16:53:07.063Z
• Last modified: 2025-02-13T16:56:19.080Z

09References

• github.com — https://github.com/eclipse/jetty.project/security/advisories/GHSA-wgh7-54f2-x98r
• github.com — https://github.com/eclipse/jetty.project/pull/9634
• github.com — https://github.com/eclipse/jetty.project/releases/tag/jetty-10.0.16
• github.com — https://github.com/eclipse/jetty.project/releases/tag/jetty-11.0.16
• github.com — https://github.com/eclipse/jetty.project/releases/tag/jetty-9.4.53.v20231009
• www.openwall.com — http://www.openwall.com/lists/oss-security/2023/10/18/4
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2023/10/msg00045.html
• www.debian.org — https://www.debian.org/security/2023/dsa-5540
• security.netapp.com — https://security.netapp.com/advisory/ntap-20231116-0011/
• security.netapp.com — https://security.netapp.com/advisory/ntap-20240621-0006/