CVE-2017-18594

    Dashboard / Vulnerabilities / CVE-2017-18594

    CVE-2017-18594

    Published: 29 Aug 2019Last Modified: 7 Aug 2026

    Summary:

    Details: nse_libssh2.cc in Nmap 7.70 is subject to a denial of service condition due to a double free when an SSH connection fails, as demonstrated by a leading \n character to ssh-brute.nse or ssh-auth-methods.nse.

    References: http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00073.html, http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00075.html, https://github.com/AMatchandaHaystack/Research/blob/master/Nmap%26libsshDF, https://seclists.org/nmap-announce/2019/0, https://seclists.org/nmap-dev/2018/q2/45, https://github.com/nmap/nmap/commit/350bbe0597d37ad67abe5fef8fba984707b4e9ad, https://github.com/nmap/nmap/issues/1077, https://github.com/nmap/nmap/issues/1227

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -350bbe0597d37ad67abe5fef8fba984707b4e9ad

    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