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    CVE-2019-7701

    A heap-based buffer over-read was discovered in wasm::SExpressionParser::skipWhitespace() in wasm-s-parser.cpp in Binaryen 1.38.22. A crafted wasm input can cause a segmentation fault, leading to denial-of-service, as demonstrated by wasm2js.

    Published:Feb 10, 2019
    Last Modified:Nov 21, 2024
    EPS:Feb 10, 2019
    EPSS Score:0.00311
    CVSS Score:6.5

    Affected Products

    Vendor
    Webassembly
    Product
    Binaryen

    Exploits

    https://github.com/WebAssembly/binaryen/issues/1863https://github.com/WebAssembly/binaryen/issues/1863

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

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    CVE-2020-18382 (CVSS 6.5) — Heap-buffer-overflow in /src/wasm/wasm-binary.cpp in wasm::WasmBinaryBuilder::visitBlock(wasm::Block*) in Bina…
    CVE-2020-18378 (CVSS 6.5) — A NULL pointer dereference was discovered in SExpressionWasmBuilder::makeBlock in wasm/wasm-s-parser.c in Bina…
    CVE-2021-46055 (CVSS 5.5) — A Denial of Service vulnerability exists in Binaryen 104 due to an assertion abort in wasm::WasmBinaryBuilder:…
    CVE-2021-46054 (CVSS 5.5) — A Denial of Service vulnerability exists in Binaryen 104 due to an assertion abort in wasm::WasmBinaryBuilder:…
    CVE-2021-46053 (CVSS 5.5) — A Denial of Service vulnerability exists in Binaryen 103. The program terminates with signal SIGKILL.…
    CVE-2021-46052 (CVSS 5.5) — A Denial of Service vulnerability exists in Binaryen 104 due to an assertion abort in wasm::Tuple::validate.…
    CVE-2021-46050 (CVSS 5.5) — A Stack Overflow vulnerability exists in Binaryen 103 via the printf_common function.…

    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