ALSA-2023:3839

    Dashboard / Vulnerabilities / ALSA-2023:3839

    ALSA-2023:3839

    Published: 27 Jun 2023Last Modified: 4 Feb 2026

    Summary: Moderate: libssh security update

    Details: libssh is a library which implements the SSH protocol. It can be used to implement client and server applications. Security Fix(es): * libssh: NULL pointer dereference during rekeying with algorithm guessing (CVE-2023-1667) * libssh: authorization bypass in pki_verify_data_signature (CVE-2023-2283) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

    References: https://access.redhat.com/errata/RHSA-2023:3839, https://access.redhat.com/security/cve/CVE-2023-1667, https://access.redhat.com/security/cve/CVE-2023-2283, https://bugzilla.redhat.com/2182199, https://bugzilla.redhat.com/2189736, https://errata.almalinux.org/8/ALSA-2023-3839.html

    Affected packages

    Package

    Name: libssh

    Purl: pkg:rpm/almalinux/libssh

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.9.6-10.el8_8

    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
    ALSA-2023:3839 | CVE-DB