USN-6592-2

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    USN-6592-2

    Published: 5 Feb 2024Last Modified: 25 Jun 2026

    Summary: libssh vulnerabilities

    Details: USN-6592-1 fixed vulnerabilities in libssh. This update provides the corresponding updates for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Original advisory details: It was discovered that libssh incorrectly handled the ProxyCommand and the ProxyJump features. A remote attacker could possibly use this issue to inject malicious code into the command of the features mentioned through the hostname parameter. (CVE-2023-6004) It was discovered that libssh incorrectly handled return codes when performing message digest operations. A remote attacker could possibly use this issue to cause libssh to crash, obtain sensitive information, or execute arbitrary code. (CVE-2023-6918)

    References: https://ubuntu.com/security/notices/USN-6592-2, https://ubuntu.com/security/CVE-2023-6004, https://ubuntu.com/security/CVE-2023-6918

    Affected packages

    Package

    Name: libssh

    Purl: pkg:deb/ubuntu/libssh?arch=source&distro=esm-infra%2Fxenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.6.3-4.3ubuntu0.6+esm1

    Affected versions

    0.6.3-3ubuntu3
    0.6.3-4.1
    0.6.3-4.2
    0.6.3-4.2ubuntu1
    0.6.3-4.3
    0.6.3-4.3ubuntu0.1
    0.6.3-4.3ubuntu0.2
    0.6.3-4.3ubuntu0.5
    0.6.3-4.3ubuntu0.6

    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