{"id":"CVE-2023-29420","details":"An issue was discovered in libbzip3.a in bzip3 before 1.2.3. There is a crash caused by an invalid memmove in bz3_decode_block.","modified":"2026-08-27T10:10:43.588043Z","published":"2023-04-06T00:00:00Z","database_specific":{"cna_assigner":"mitre","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/29xxx/CVE-2023-29420.json"},"references":[{"type":"WEB","url":"https://github.com/kspalaiologos/bzip3/compare/1.2.2...1.2.3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/29xxx/CVE-2023-29420.json"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4JLSE25SV7K2NB6FTFT4UHJOJUHBHYHY/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NA7S7HDUAINOTCSWQZ5LIW756DYY22V2/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NMLFV2FJK3CM7NJLVPZI5RUAFQZICPWW/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-29420"},{"type":"REPORT","url":"https://github.com/kspalaiologos/bzip3/issues/92"},{"type":"FIX","url":"https://github.com/kspalaiologos/bzip3/commit/bb06deb85f1c249838eb938e0dab271d4194f8fa"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/iczelia/bzip3","events":[{"introduced":"0"},{"fixed":"3bf1483853b7d3371b4a6beb186cbddcaf45d25e"},{"fixed":"bb06deb85f1c249838eb938e0dab271d4194f8fa"}],"database_specific":{"cpe":"cpe:2.3:a:bzip3_project:bzip3:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"1.2.3"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["1.2.2","1.2.1","1.2.0","1.1.8","1.1.7","1.1.6","1.1.5","1.1.4","1.1.3","1.1.2","1.1.1","1.1.0","1.0.1","1.0.0","corpus"],"database_specific":{"vanir_signatures":[{"source":"https://github.com/iczelia/bzip3/commit/bb06deb85f1c249838eb938e0dab271d4194f8fa","target":{"function":"bz3_decode_block","file":"src/libbz3.c"},"deprecated":false,"digest":{"function_hash":"78927651910423473054068276738405572694","length":2428},"id":"CVE-2023-29420-c1508cb8","signature_type":"Function","signature_version":"v1"},{"deprecated":false,"digest":{"line_hashes":["176151160024430871228388812718175632404","148928673947002201083747821524943350945","305471874631366783360112357820524980417","90638596750532673362592108567729244609"],"threshold":0.9},"id":"CVE-2023-29420-f8920d99","signature_type":"Line","signature_version":"v1","source":"https://github.com/iczelia/bzip3/commit/bb06deb85f1c249838eb938e0dab271d4194f8fa","target":{"file":"src/libbz3.c"}}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-29420.json","vanir_signatures_modified":"2026-08-27T10:10:43Z"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}