UBUNTU-CVE-2017-15906

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    UBUNTU-CVE-2017-15906

    Published: 25 Oct 2017Last Modified: 29 May 2026
    Upstream:
    CVE-2017-15906
    Aliases:
    USN-3538-1

    Summary:

    Details: The process_open function in sftp-server.c in OpenSSH before 7.6 does not properly prevent write operations in readonly mode, which allows attackers to create zero-length files.

    References: https://ubuntu.com/security/CVE-2017-15906, https://www.openssh.com/txt/release-7.6, https://ubuntu.com/security/notices/USN-3538-1, https://xorl.wordpress.com/2017/11/13/openssh-sftp-server-remote-security-vulnerability/, https://www.cve.org/CVERecord?id=CVE-2017-15906

    Affected packages

    Package

    Name: openssh

    Purl: pkg:deb/ubuntu/openssh?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:6.6p1-2ubuntu2.10

    Affected versions

    1:6.2p2-6

    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
    UBUNTU-CVE-2017-15906 | CVE-DB