{"id":"BIT-fluent-bit-2021-46879","details":"An issue was discovered in Treasure Data Fluent Bit 1.7.1, a wrong variable is used to get the msgpack data resulting in a heap overflow in flb_msgpack_gelf_value_ext. An attacker can craft a malicious file and tick the victim to open the file with the software, triggering a heap overflow and execute arbitrary code on the target system.","aliases":["CVE-2021-46879"],"modified":"2026-09-08T08:47:32.556030059Z","published":"2024-03-06T10:51:50.685Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:treasuredata:fluent_bit:1.7.1:*:*:*:*:*:*:*","cpe:2.3:a:treasuredata:fluent_bit:*:*:*:*:*:*:*:*"]},"references":[{"type":"ADVISORY","url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26851"},{"type":"FIX","url":"https://github.com/fluent/fluent-bit/pull/3100"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-46879"}],"affected":[{"package":{"name":"fluent-bit","ecosystem":"Bitnami","purl":"pkg:bitnami/fluent-bit"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.7.1"},{"fixed":"1.7.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/fluent-bit/BIT-fluent-bit-2021-46879.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}],"schema_version":"1.9.0"}