UBUNTU-CVE-2021-44847

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    UBUNTU-CVE-2021-44847

    Published: 13 Dec 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-44847

    Summary:

    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: https://ubuntu.com/security/CVE-2021-44847, https://github.com/TokTok/c-toxcore/pull/1718, https://blog.tox.chat/2021/12/stack-based-buffer-overflow-vulnerability-in-udp-packet-handling-in-toxcore-cve-2021-44847/, https://www.cve.org/CVERecord?id=CVE-2021-44847

    Affected packages

    Package

    Name: libtoxcore

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    0.2.10-1build2

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2021-44847 | CVE-DB