CVE-2021-44847

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    CVE-2021-44847

    Published: 13 Dec 2021Last Modified: 8 Jul 2026

    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://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S7EBS3NIRYJ7V3PTNINP3PJSVUHGZTGA/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLTKINSPO5T65LB3ZASDPCREKUE22RYE/, https://github.com/TokTok/c-toxcore/pull/1718

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- a429ef4a28a5e5e0ad010efffb76d2abc3ada0af
    Fixed -None

    Affected versions

    v0.2.12
    v0.2.11
    v0.2.10
    v0.2.9
    v0.2.8
    v0.2.7
    v0.2.6
    v0.2.5
    v0.2.4
    v0.2.3
    v0.2.2
    v0.2.1
    v0.2.0

    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
    CVE-2021-44847 | CVE-DB