{"schemaVersion":3,"id":"USN-5945-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"protobuf vulnerabilities\n\nIt was discovered that Protocol Buffers did not properly validate field\ncom.google.protobuf.UnknownFieldSet in protobuf-java. An attacker could\npossibly use this issue to perform a denial of service attack. This issue\nonly affected protobuf Ubuntu 22.04 LTS and Ubuntu 22.10. (CVE-2021-22569)\n\nIt was discovered that Protocol Buffers did not properly parse certain\nsymbols. An attacker could possibly use this issue to cause a denial of\nservice or other unspecified impact. (CVE-2021-22570)\n\nIt was discovered that Protocol Buffers did not properly manage memory when\nparsing specifically crafted messages. An attacker could possibly use this\nissue to cause applications using protobuf to crash, resulting in a denial\nof service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS,\nUbuntu 22.04 LTS and Ubuntu 22.10. (CVE-2022-1941)","dates":{"published":"2023-03-13T06:07:39.000Z","modified":"2026-06-29T13:50:50.159Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"ubuntu","product":"protobuf","name":"protobuf","label":"protobuf","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/protobuf","purlType":"deb","versions":[{"text":"< 2.5.0-9ubuntu1+esm1","noFixRecorded":false,"fixedIn":null},{"text":"< 3.0.0-9.1ubuntu1.1","noFixRecorded":false,"fixedIn":null},{"text":"< 3.6.1.3-2ubuntu5.2","noFixRecorded":false,"fixedIn":null},{"text":"< 3.12.4-1ubuntu7.22.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.5.0-9ubuntu1+esm1 | < 3.0.0-9.1ubuntu1.1 | < 3.6.1.3-2ubuntu5.2 | < 3.12.4-1ubuntu7.22.04.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-5945-1","label":"ubuntu.com/security/notices/USN-5945-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-22569","label":"ubuntu.com/security/CVE-2021-22569","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-22570","label":"ubuntu.com/security/CVE-2021-22570","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-1941","label":"ubuntu.com/security/CVE-2022-1941","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2021-22569","CVE-2021-22570","CVE-2022-1941"],"downstream":[],"duplicates":[],"related":["CVE-2021-22569","CVE-2021-22570","CVE-2022-1941"]},"timeline":[{"kind":"published","date":"2023-03-13T06:07:39.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-29T13:50:50.159Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T19:31:38.044Z","stale":false,"partial":false}}