UBUNTU-CVE-2021-44847

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Source

https://ubuntu.com/security/CVE-2021-44847

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-44847.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-44847

Upstream

CVE-2021-44847

Published

2021-12-13T01:15:00Z

Modified

2025-10-24T04:50:38Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

A stack-based buffer overflow in handle_request function in DHT.c in toxcore 0.1.9 through 0.1.11 and 0.2.0 through 0.2.12 (caused by an improper length calculation during the handling of received network packets) allows remote attackers to crash the process or potentially execute arbitrary code via a network packet.

References

Affected packages

Ubuntu:20.04:LTS / libtoxcore

Package

Name: libtoxcore
Purl: pkg:deb/ubuntu/libtoxcore@0.2.10-1build2?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.2.10-1build2

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "0.2.10-1build2",
            "binary_name": "libtoxcore-dev"
        },
        {
            "binary_version": "0.2.10-1build2",
            "binary_name": "libtoxcore2"
        },
        {
            "binary_version": "0.2.10-1build2",
            "binary_name": "toxcore-utils"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-44847.json"

Ubuntu:22.04:LTS / libtoxcore