CVEvulnerability
CVE-2021-46879
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2023-04-11
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-787
Description
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.
Affected configurations
• treasuredata fluent bit 1.7.1
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26851 Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/fluent/fluent-bit/pull/3100 Patch
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26851 Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/fluent/fluent-bit/pull/3100 Patch