Description
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 file with the software, triggering a heap overflow and execute arbitrary code on the target system.
References (2)
Core 2
Core References
Exploit, Issue Tracking, Patch, Third Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26851
Scores
CVSS v3
7.8
EPSS
0.0038
EPSS Percentile
30.0%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-787
Status
published
Products (1)
treasuredata/fluent_bit
1.7.1
Published
Apr 11, 2023
Tracked Since
Feb 18, 2026