Vulnerability Description
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).
CVSS Score
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Treasuredata | Fluent Bit | >= 1.7.0, <= 1.7.4 |
Related Weaknesses (CWE)
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33750ExploitPatchThird Party Advisory
- https://github.com/fluent/fluent-bit/commit/22346a74c07ceb90296be872be2d53eb9225PatchThird Party Advisory
- https://github.com/fluent/fluent-bit/pull/3453PatchThird Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/fluent-bit/OSV-2021-702Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33750ExploitPatchThird Party Advisory
- https://github.com/fluent/fluent-bit/commit/22346a74c07ceb90296be872be2d53eb9225PatchThird Party Advisory
- https://github.com/fluent/fluent-bit/pull/3453PatchThird Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/fluent-bit/OSV-2021-702Third Party Advisory
FAQ
What is CVE-2021-36088?
CVE-2021-36088 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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).
How severe is CVE-2021-36088?
CVE-2021-36088 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2021-36088?
Check the references section above for vendor advisories and patch information. Affected products include: Treasuredata Fluent Bit.