CVE-2020-35683

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    CVE-2020-35683

    Published: 19 Aug 2021Last Modified: 10 Mar 2026

    Summary:

    Details: An issue was discovered in HCC Nichestack 3.0. The code that parses ICMP packets relies on an unchecked value of the IP payload size (extracted from the IP header) to compute the ICMP checksum. When the IP payload size is set to be smaller than the size of the IP header, the ICMP checksum computation function may read out of bounds, causing a Denial-of-Service.

    References: , https://www.hcc-embedded.com, https://www.kb.cert.org/vuls/id/608209, https://cert-portal.siemens.com/productcert/pdf/ssa-789208.pdf, https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/

    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-2020-35683 | CVE-DB