What is CVE-2021-46879?

CVE-2021-46879 is a high-severity vulnerability in Treasuredata Fluent_bit, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2023-04-11.

How severe is CVE-2021-46879?

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

Buffer overflow in Treasuredata Fluent_bit

CVE-2021-46879

An issue was discovered in Treasure Data Fluent Bit 1.7.1, a wrong variable is used to get the msgpack data resulting in a heap overflow in flb_msgpack_gelf_value_ext. An attacker can craft a malicious file and tick the victim to open the…

Vulnerability class: Buffer Overflow

EPSS: 0.004 (29.9th 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-787 — Out-of-bounds Write

References

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

Frequently asked questions

What is CVE-2021-46879?: CVE-2021-46879 is a high-severity vulnerability in Treasuredata Fluent_bit, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2023-04-11.
How severe is CVE-2021-46879?: High severity. CVSS v3 base score is 7.8 out of 10.