{"id":"CVE-2021-22569","state":"PUBLISHED","title":"Denial of Service of protobuf-java parsing procedure","description":"An issue in protobuf-java allowed the interleaving of com.google.protobuf.UnknownFieldSet fields in such a way that would be processed out of order. A small malicious payload can occupy the parser for several minutes by creating large numbers of short-lived objects that cause frequent, repeated pauses. We recommend upgrading libraries beyond the vulnerable versions.","publishedAt":"2022-01-07T00:00:00.000Z","updatedAt":"2025-04-21T13:57:08.444Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"Google"},"assigner":"Google","products":["Google LLC protobuf-java","Google LLC protobuf-kotlin","Google LLC google-protobuf [JRuby Gem]"],"affected":[{"vendor":"Google LLC","product":"protobuf-java","versions":[{"version":"unspecified","status":"affected","lessThan":"3.16.1","versionType":"custom"},{"version":"unspecified","status":"affected","lessThan":"3.18.2","versionType":"custom"},{"version":"unspecified","status":"affected","lessThan":"3.19.2","versionType":"custom"}]},{"vendor":"Google LLC","product":"protobuf-kotlin","versions":[{"version":"unspecified","status":"affected","lessThan":"3.18.2","versionType":"custom"},{"version":"unspecified","status":"affected","lessThan":"3.19.2","versionType":"custom"}]},{"vendor":"Google LLC","product":"google-protobuf [JRuby Gem]","versions":[{"version":"unspecified","status":"affected","lessThan":"3.19.2","versionType":"custom"}]}],"references":["https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39330","https://cloud.google.com/support/bulletins#gcp-2022-001","http://www.openwall.com/lists/oss-security/2022/01/12/4","http://www.openwall.com/lists/oss-security/2022/01/12/7","https://www.oracle.com/security-alerts/cpuapr2022.html","https://lists.debian.org/debian-lts-announce/2023/04/msg00019.html"],"weaknesses":["CWE-696"],"ingestedAt":"2026-10-29T19:48:02.192Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/22xxx/CVE-2021-22569.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-22569","state":"PUBLISHED","datePublished":"2022-01-07T00:00:00.000Z","dateUpdated":"2025-04-21T13:57:08.444Z","assignerShortName":"Google","assignerOrgId":"14ed7db2-1595-443d-9d34-6215bf890778","dateReserved":"2021-01-05T00:00:00.000Z"},"containers":{"cna":{"title":"Denial of Service of protobuf-java parsing procedure","descriptions":[{"lang":"en","value":"An issue in protobuf-java allowed the interleaving of com.google.protobuf.UnknownFieldSet fields in such a way that would be processed out of order. A small malicious payload can occupy the parser for several minutes by creating large numbers of short-lived objects that cause frequent, repeated pauses. We recommend upgrading libraries beyond the vulnerable versions."}],"affected":[{"vendor":"Google LLC","product":"protobuf-java","versions":[{"version":"unspecified","status":"affected","lessThan":"3.16.1","versionType":"custom"},{"version":"unspecified","status":"affected","lessThan":"3.18.2","versionType":"custom"},{"version":"unspecified","status":"affected","lessThan":"3.19.2","versionType":"custom"}]},{"vendor":"Google LLC","product":"protobuf-kotlin","versions":[{"version":"unspecified","status":"affected","lessThan":"3.18.2","versionType":"custom"},{"version":"unspecified","status":"affected","lessThan":"3.19.2","versionType":"custom"}]},{"vendor":"Google LLC","product":"google-protobuf [JRuby Gem]","versions":[{"version":"unspecified","status":"affected","lessThan":"3.19.2","versionType":"custom"}]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39330"},{"url":"https://cloud.google.com/support/bulletins#gcp-2022-001"},{"url":"http://www.openwall.com/lists/oss-security/2022/01/12/4","name":"[oss-security] 20220112 CVE-2021-22569: Protobuf Java, Kotlin, JRuby DoS","tags":["mailing-list"]},{"url":"http://www.openwall.com/lists/oss-security/2022/01/12/7","name":"[oss-security] 20220112 Re: CVE-2021-22569: Protobuf Java, Kotlin, JRuby DoS","tags":["mailing-list"]},{"url":"https://www.oracle.com/security-alerts/cpuapr2022.html"},{"url":"https://lists.debian.org/debian-lts-announce/2023/04/msg00019.html","name":"[debian-lts-announce] 20230418 [SECURITY] [DLA 3393-1] protobuf security update","tags":["mailing-list"]}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-696","type":"CWE","lang":"en","description":"CWE-696 Incorrect Behavior Order"}]}],"providerMetadata":{"shortName":"Google","orgId":"14ed7db2-1595-443d-9d34-6215bf890778","dateUpdated":"2023-04-18T00:00:00.000Z"},"credits":[{"lang":"en","value":"OSS-Fuzz - https://github.com/google/oss-fuzz"}],"x_generator":{"engine":"Vulnogram 0.0.9"},"source":{"discovery":"INTERNAL"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39330","tags":["x_transferred"]},{"url":"https://cloud.google.com/support/bulletins#gcp-2022-001","tags":["x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2022/01/12/4","name":"[oss-security] 20220112 CVE-2021-22569: Protobuf Java, Kotlin, JRuby DoS","tags":["mailing-list","x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2022/01/12/7","name":"[oss-security] 20220112 Re: CVE-2021-22569: Protobuf Java, Kotlin, JRuby DoS","tags":["mailing-list","x_transferred"]},{"url":"https://www.oracle.com/security-alerts/cpuapr2022.html","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/04/msg00019.html","name":"[debian-lts-announce] 20230418 [SECURITY] [DLA 3393-1] protobuf security update","tags":["mailing-list","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T18:44:14.144Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-04-21T13:40:37.923955Z","id":"CVE-2021-22569","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-21T13:57:08.444Z"}}]}}}