CVE-2021-46879 describes a heap overflow vulnerability in Treasure Data Fluent Bit version 1.7.1, specifically within the flb_msgpack_gelf_value_ext function due to an incorrect variable usage when processing msgpack data. This vulnerability carries a CVSS score of 7.8 (High), indicating that a local attacker could trigger arbitrary code execution if a victim is enticed into opening a specially crafted file. Currently, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.7.1CPE matchmatch criteria | cpe:2.3:a:treasuredata:fluent_bit:1.7.1:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
CVE-2021-46879
May 9, 2023An 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.
Apr 11, 2023