What is CVE-2021-46878?

CVE-2021-46878 is a high-severity vulnerability in Treasuredata Fluent_bit, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 7.8/10. Published 2023-04-11.

How severe is CVE-2021-46878?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Treasuredata Fluent_bit

CVE-2021-46878

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. Thi…

EPSS: 0.004 (26.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Treasuredata Fluent_bit — versions 1.7.1
N/a — versions n/a

Weakness classification (CWE)

CWE-843 — Access of Resource Using Incompatible Type (Type Confusion)

References

cve@mitre.org (Exploit, Patch, Third Party Advisory, Issue Tracking)
cve@mitre.org (Patch)

Frequently asked questions

What is CVE-2021-46878?: CVE-2021-46878 is a high-severity vulnerability in Treasuredata Fluent_bit, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 7.8/10. Published 2023-04-11.
How severe is CVE-2021-46878?: High severity. CVSS v3 base score is 7.8 out of 10.