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
| Link | Resource |
|---|---|
| https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27742 | Exploit Issue Tracking Patch Third Party Advisory |
| https://github.com/fluent/fluent-bit/pull/3115 | Patch |
| https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27742 | Exploit Issue Tracking Patch Third Party Advisory |
| https://github.com/fluent/fluent-bit/pull/3115 | Patch |
Configurations
History
21 Nov 2024, 06:34
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27742 - Exploit, Issue Tracking, Patch, Third Party Advisory | |
| References | () https://github.com/fluent/fluent-bit/pull/3115 - Patch |
26 Apr 2023, 13:42
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-843 | |
| CPE | cpe:2.3:a:treasuredata:fluent_bit:1.7.1:*:*:*:*:*:*:* | |
| First Time |
Treasuredata fluent Bit
Treasuredata |
|
| References | (MISC) https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27742 - Exploit, Issue Tracking, Patch, Third Party Advisory | |
| References | (MISC) https://github.com/fluent/fluent-bit/pull/3115 - Patch | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
11 Apr 2023, 18:19
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2023-04-11 18:15
Updated : 2025-02-11 21:15
NVD link : CVE-2021-46878
Mitre link : CVE-2021-46878
CVE.ORG link : CVE-2021-46878
JSON object : View
Products Affected
treasuredata
- fluent_bit
CWE
CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')