CVE-2020-27830

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    CVE-2020-27830

    Published: 13 May 2021Last Modified: 16 Apr 2026

    Summary:

    Details: A vulnerability was found in Linux Kernel where in the spk_ttyio_receive_buf2() function, it would dereference spk_ttyio_synth without checking whether it is NULL or not, and may lead to a NULL-ptr deref crash.

    References: https://security.netapp.com/advisory/ntap-20210625-0004/, https://www.debian.org/security/2021/dsa-4843, http://www.openwall.com/lists/oss-security/2020/12/08/1, http://www.openwall.com/lists/oss-security/2020/12/08/4, https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html, https://bugzilla.redhat.com/show_bug.cgi?id=1919900

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    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-2020-27830 | CVE-DB