CVE-2021-3468

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    CVE-2021-3468

    Published: 2 Jun 2021Last Modified: 20 Oct 2026

    Summary:

    Details: A flaw was found in avahi in versions 0.6 up to 0.8. The event used to signal the termination of the client connection on the avahi Unix socket is not correctly handled in the client_work function, allowing a local attacker to trigger an infinite loop. The highest threat from this vulnerability is to the availability of the avahi service, which becomes unresponsive after this flaw is triggered.

    References: https://lists.debian.org/debian-lts-announce/2023/06/msg00028.html, https://lists.debian.org/debian-lts-announce/2022/06/msg00009.html, https://bugzilla.redhat.com/show_bug.cgi?id=1939614

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 377f09665c993d3fe8a5894e9d4d51b0d73e97c6
    Fixed -None

    Affected versions

    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-2021-3468 | CVE-DB