CVE-2020-18378

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    CVE-2020-18378

    Published: 22 Aug 2023Last Modified: 8 Jul 2026

    Summary:

    Details: A NULL pointer dereference was discovered in SExpressionWasmBuilder::makeBlock in wasm/wasm-s-parser.c in Binaryen 1.38.26. A crafted wasm input can cause a segmentation fault, leading to denial-of-service, as demonstrated by wasm-as.

    References: https://github.com/WebAssembly/binaryen/issues/1900

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 484f62f985cb2180139d1cf991ac04ee41635417
    Fixed -None

    Affected versions

    1.38.26

    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-2020-18378 | CVE-DB