{"id":"CVE-2022-2191","aliases":["GHSA-8mpp-f3f7-xc28"],"url":"https://o3.security/vulnerability/CVE-2022-2191","summary":"Jetty SslConnection does not release pooled ByteBuffers in case of errors","details":"### Impact\n`SslConnection` does not release `ByteBuffer`s in case of error code paths.\nFor example, TLS handshakes that require client-auth with clients that send expired certificates will trigger a TLS handshake errors and the `ByteBuffer`s used to process the TLS handshake will be leaked.\n\n### Workarounds\nConfigure explicitly a `RetainableByteBufferPool` with `max[Heap|Direct]Memory` to limit the amount of memory that is leaked.\nEventually the pool will be full of \"active\" entries (the leaked ones) and will provide `ByteBuffer`s that will be GCed normally.\n\n_With embedded-jetty_\n\n``` java\nint maxBucketSize = 1000;\nlong maxHeapMemory = 128 * 1024L * 1024L; // 128 MB\nlong maxDirectMemory = 128 * 1024L * 1024L; // 128 MB\nRetainableByteBufferPool rbbp = new ArrayRetainableByteBufferPool(0, -1, -1, maxBucketSize, maxHeapMemory, maxDirectMemory);\n\nserver.addBean(rbbp); // make sure the ArrayRetainableByteBufferPool is added before the server is started\nserver.start();\n```\n\n_With jetty-home/jetty-base_\n\nCreate a `${jetty.base}/etc/retainable-byte-buffer-config.xml`\n\n``` xml\n<?xml version=\"1.0\"?>\n<!DOCTYPE Configure PUBLIC \"-//Jetty//Configure//EN\" \"https://www.eclipse.org/jetty/configure_10_0.dtd\">\n\n<Configure id=\"Server\" class=\"org.eclipse.jetty.server.Server\">\n  <Call name=\"addBean\">\n    <Arg>\n      <New class=\"org.eclipse.jetty.io.ArrayRetainableByteBufferPool\">\n        <Arg type=\"int\"><Property name=\"jetty.byteBufferPool.minCapacity\" default=\"0\"/></Arg>\n        <Arg type=\"int\"><Property name=\"jetty.byteBufferPool.factor\" default=\"-1\"/></Arg>\n        <Arg type=\"int\"><Property name=\"jetty.byteBufferPool.maxCapacity\" default=\"-1\"/></Arg>\n        <Arg type=\"int\"><Property name=\"jetty.byteBufferPool.maxBucketSize\" default=\"1000\"/></Arg>\n        <Arg type=\"long\"><Property name=\"jetty.byteBufferPool.maxHeapMemory\" default=\"128000000\"/></Arg>\n        <Arg type=\"long\"><Property name=\"jetty.byteBufferPool.maxDirectMemory\" default=\"128000000\"/></Arg>\n      </New>\n    </Arg>\n  </Call>\n</Configure>\n```\n\nAnd then reference it in `${jetty.base}/start.d/retainable-byte-buffer-config.ini`\n\n```\netc/retainable-byte-buffer-config.xml\n```\n\n\n### References\nhttps://github.com/eclipse/jetty.project/issues/8161\n\n### For more information\n* Email us at [security@webtide.com](mailto:security@webtide.com)\n","published":"2022-07-07T20:45:16Z","modified":"2026-10-28T02:30:42.921170989Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.0205,"percentile":0.7951,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Maven","name":"org.eclipse.jetty:jetty-server","fixedVersion":"10.0.10"},{"ecosystem":"Maven","name":"org.eclipse.jetty:jetty-server","fixedVersion":"11.0.10"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/2xxx/CVE-2022-2191.json"},{"type":"ADVISORY","url":"https://github.com/eclipse/jetty.project/security/advisories/GHSA-8mpp-f3f7-xc28"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-2191"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20220909-0003/"},{"type":"WEB","url":"https://github.com/eclipse/jetty.project/issues/8161"},{"type":"WEB","url":"https://github.com/eclipse/jetty.project"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20220909-0003"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:30:42.921170989Z"}}