CVE-2021-46879

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Source
https://cve.org/CVERecord?id=CVE-2021-46879
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-46879.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-46879
Aliases
Published
2023-04-11T18:15:58.387Z
Modified
2026-07-09T05:45:50.868396Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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 flbmsgpackgelfvalueext. 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

Affected packages

Git / github.com/fluent/fluent-bit

Affected ranges

Type
GIT
Repo
https://github.com/fluent/fluent-bit
Events
Introduced
7edd2235cd2da7fe76258b7faa59ee9b37f52f8b
Last affected
7edd2235cd2da7fe76258b7faa59ee9b37f52f8b
Database specific 
{
    "extracted_events": [
        {
            "introduced": "1.7.1"
        },
        {
            "last_affected": "1.7.1"
        }
    ],
    "source": "CPE_STRING",
    "cpe": "cpe:2.3:a:treasuredata:fluent_bit:1.7.1:*:*:*:*:*:*:*"
}

Affected versions

1.*
1.7.1
v1.*
v1.7.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-46879.json"