{"id":"UBUNTU-CVE-2021-22569","details":"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.","modified":"2026-04-22T12:47:40.880677Z","published":"2022-01-10T14:10:00Z","related":["USN-5945-1"],"upstream":["CVE-2021-22569"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-22569"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2022/01/12/4"},{"type":"REPORT","url":"https://cloud.google.com/support/bulletins#gcp-2022-001"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2022/01/12/4"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2022/01/12/7"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5945-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-22569"}],"affected":[{"package":{"name":"protobuf","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/protobuf@2.5.0-9ubuntu1+esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.0-9ubuntu1+esm1"}]}],"versions":["2.4.1-3ubuntu2","2.4.1-3ubuntu3","2.4.1-3ubuntu4","2.5.0-5ubuntu2","2.5.0-7ubuntu1","2.5.0-8ubuntu1","2.5.0-9ubuntu1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): 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subscription 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subscription required","binaries":[{"binary_name":"libprotobuf-java","binary_version":"3.6.1.3-2ubuntu5.2"},{"binary_name":"libprotobuf-lite17","binary_version":"3.6.1.3-2ubuntu5.2"},{"binary_version":"3.6.1.3-2ubuntu5.2","binary_name":"libprotobuf17"},{"binary_name":"libprotoc17","binary_version":"3.6.1.3-2ubuntu5.2"},{"binary_name":"protobuf-compiler","binary_version":"3.6.1.3-2ubuntu5.2"},{"binary_name":"python-protobuf","binary_version":"3.6.1.3-2ubuntu5.2"},{"binary_version":"3.6.1.3-2ubuntu5.2","binary_name":"python3-protobuf"},{"binary_name":"ruby-google-protobuf","binary_version":"3.6.1.3-2ubuntu5.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-22569.json"}},{"package":{"name":"protobuf","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/protobuf@3.12.4-1ubuntu7.22.04.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.12.4-1ubuntu7.22.04.1"}]}],"versions":["3.12.4-1ubuntu3","3.12.4-1ubuntu5","3.12.4-1ubuntu6","3.12.4-1ubuntu7"],"ecosystem_specific":{"availability":"No 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