CVE-2017-1000373

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    CVE-2017-1000373

    Published: 19 Jun 2017Last Modified: 10 Mar 2026

    Summary:

    Details: The OpenBSD qsort() function is recursive, and not randomized, an attacker can construct a pathological input array of N elements that causes qsort() to deterministically recurse N/4 times. This allows attackers to consume arbitrary amounts of stack memory and manipulate stack memory to assist in arbitrary code execution attacks. This affects OpenBSD 6.1 and possibly earlier versions.

    References: https://support.apple.com/HT208144, , https://support.apple.com/HT208113, https://www.exploit-db.com/exploits/42271/, http://www.securitytracker.com/id/1039427, https://support.apple.com/HT208112, https://support.apple.com/HT208115, http://www.securityfocus.com/bid/99177, https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt, https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdlib/qsort.c?rev=1.15&content-type=text/x-cvsweb-markup

    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-2017-1000373 | CVE-DB