USN-3795-3

    Dashboard / Vulnerabilities / USN-3795-3

    USN-3795-3

    Published: 29 Nov 2018Last Modified: 22 Apr 2026

    Summary: libssh regression

    Details: USN-3795-1 and USN-3795-2 fixed a vulnerability in libssh. The upstream fix introduced a regression. This update fixes the problem. Original advisory details: Peter Winter-Smith discovered that libssh incorrectly handled authentication when being used as a server. A remote attacker could use this issue to bypass authentication without any credentials.

    References: https://ubuntu.com/security/notices/USN-3795-3, https://launchpad.net/bugs/1805348

    Affected packages

    Package

    Name: libssh

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.6.1-0ubuntu3.5

    Affected versions

    0.5.4-1

    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