CVE-2021-46878
Severity Score
7.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-03-29 CVE Reserved
- 2023-04-11 CVE Published
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- 2024-11-01 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')
CAPEC
References (2)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27742 | 2024-08-04 |
| URL | Date | SRC |
|---|---|---|
| https://github.com/fluent/fluent-bit/pull/3115 | 2023-04-26 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Treasuredata Search vendor "Treasuredata" | Fluent Bit Search vendor "Treasuredata" for product "Fluent Bit" | 1.7.1 Search vendor "Treasuredata" for product "Fluent Bit" and version "1.7.1" | - |
Affected
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