CVE-2021-36088

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

Fluent Bit (aka fluent-bit) 1.7.0 through 1.7.4 has a double free in flb_free (called from flb_parser_json_do and flb_parser_do).

Fluent Bit (también se conoce como fluent-bit) versiones 1.7.0 hasta 1.7,4 presenta una doble liberación en la función flb_free (llamado desde flb_parser_json_do y flb_parser_do)

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2021-07-01 CVE Reserved
2021-07-01 CVE Published
2024-03-16 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-415: Double Free

CAPEC

References (4)

URL	Tag	Source
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/fluent-bit/OSV-2021-702.yaml	Third Party Advisory

URL	Date	SRC
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33750	2024-08-04

URL	Date	SRC
https://github.com/fluent/fluent-bit/commit/22346a74c07ceb90296be872be2d53eb92252a54	2024-07-03
https://github.com/fluent/fluent-bit/pull/3453	2024-07-03

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"				>= 1.7.0 <= 1.7.4 Search vendor "Treasuredata" for product "Fluent Bit" and version " >= 1.7.0 <= 1.7.4"		-		Affected