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    CVE-2016-6522

    Integer overflow in the uvm_map_isavail function in uvm/uvm_map.c in OpenBSD 5.9 allows local users to cause a denial of service (kernel panic) via a crafted mmap call, which triggers the new mapping to overlap with an existing mapping.

    Published:Mar 7, 2017
    Last Modified:Apr 20, 2025
    EPS:Mar 7, 2017
    EPSS Score:0.00083
    CVSS Score:5.5

    Affected Products

    Vendor
    Openbsd
    Product
    Openbsd

    Exploits

    http://www.openwall.com/lists/oss-security/2016/08/02/12http://www.openwall.com/lists/oss-security/2016/08/02/8http://www.openwall.com/lists/oss-security/2016/08/02/12http://www.openwall.com/lists/oss-security/2016/08/02/8

    Common Weakness Enumeration

    CWE-190 Integer Overflow or Wraparound

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

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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