CVE-2021-46878
- Source
- https://cve.org/CVERecord?id=CVE-2021-46878
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-46878.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-46878
- Aliases
- Published
- 2023-04-11T18:15:58Z
- Modified
- 2026-10-20T10:55:11Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
An issue was discovered in Treasure Data Fluent Bit 1.7.1, erroneous parsing in flb_pack_msgpack_to_json_format leads to type confusion bug that interprets whatever is on the stack as msgpack maps and arrays, leading to use-after-free. This can be used by an attacker to craft a specially craft file and trick the victim opening it using the affect software, triggering use-after-free and execute arbitrary code on the target system.
- References
Affected packages
Git / github.com/fluent/fluent-bit
Affected ranges
- Type
- GIT
- Repo
- https://github.com/fluent/fluent-bit
- Events
-
IntroducedLast Affected
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:treasuredata:fluent_bit:1.7.1:*:*:*:*:*:*:*", "range": [ { "introduced": "1.7.1" }, { "last_affected": "1.7.1" } ], "source": "CPE_STRING" } ] }