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    CVE-2022-2347

    There exists an unchecked length field in UBoot. The U-Boot DFU implementation does not bound the length field in USB DFU download setup packets, and it does not verify that the transfer direction corresponds to the specified command. Consequently, if a physical attacker crafts a USB DFU download setup packet with a `wLength` greater than 4096 bytes, they can write beyond the heap-allocated request buffer.

    Published:Sep 23, 2022
    Last Modified:May 12, 2026
    EPS:Sep 23, 2022
    EPSS Score:0.00036
    CVSS Score:7.7

    Affected Products

    Vendor
    Denx
    Product
    U-boot

    Exploits

    https://seclists.org/oss-sec/2022/q3/41https://seclists.org/oss-sec/2022/q3/41

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

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    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