MGASA-2018-0006

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    MGASA-2018-0006

    Published: 1 Jan 2018Last Modified: 16 Apr 2026

    Summary: Updated openssh packages fix security vulnerability

    Details: It was found that the boundary checks in the code implementing support for pre-authentication compression could have been optimized out by certain compilers. An attacker able to compromise the privilege-separated process could possibly use this flaw for further attacks against the privileged monitor process (CVE-2016-10012). 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 (CVE-2017-15906).

    References: https://advisories.mageia.org/MGASA-2018-0006.html, https://bugs.mageia.org/show_bug.cgi?id=19987, https://bugzilla.redhat.com/show_bug.cgi?id=1406293, https://lists.fedoraproject.org/archives/list/[email protected]/thread/VZIQDU7D6MLXFXZ4R3ZG2FCH6EDR3MBD/

    Affected packages

    Package

    Name: openssh

    Purl: pkg:rpm/mageia/openssh?arch=source&distro=mageia-5

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -6.6p1-5.10.mga5

    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