jetty12: In Eclipse Jetty versions 12.0.0 to 12.0.16 included, an HTTP/2 client can specify a very large value for the HTTP/2...
CVE-2025-1948 is fixed in jetty12 on 1 platform, first by DEBIAN-CVE-2025-1948, released May 8, 2025. It is not reported as exploited. Patch Radar priority: High.
In Eclipse Jetty versions 12.0.0 to 12.0.16 included, an HTTP/2 client can specify a very large value for the HTTP/2 settings parameter SETTINGS_MAX_HEADER_LIST_SIZE. The Jetty HTTP/2 server does not perform validation on this setting, and tries to allocate a ByteBuffer of the specified capacity to encode HTTP responses, likely resulting in OutOfMemoryError being thrown, or even the JVM process exiting.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| jetty12 · Debian 13.5 (trixie) | 12.0.17-1 | DEBIAN-CVE-2025-1948 | May 8, 2025 |
| jetty12 · Debian 14 | 12.0.17-1 | DEBIAN-CVE-2025-1948 | May 8, 2025 |
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