CVE-2021-46879

Published Apr 11, 2023

Last updated 2 years ago

Overview

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.
Source: cve@mitre.org
NVD status: Analyzed

Risk scores

CVSS 3.1

Type: Primary
Base score: 7.8
Impact score: 5.9
Exploitability score: 1.8
Vector string: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity: HIGH

Weaknesses

nvd@nist.gov: CWE-787

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:treasuredata:fluent_bit:1.7.1:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "1740F81E-0B82-4930-8F88-7D9A8A389CFE"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References