RLSA-2021:4387

    Dashboard / Vulnerabilities / RLSA-2021:4387

    RLSA-2021:4387

    Published: 9 Nov 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2020-16135

    Summary: Low: 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 in sftpserver.c if ssh_buffer_new returns NULL (CVE-2020-16135) 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. Additional Changes: For detailed information on changes in this release, see the Rocky Linux 8.5 Release Notes linked from the References section.

    References: https://errata.rockylinux.org/RLSA-2021:4387, https://bugzilla.redhat.com/show_bug.cgi?id=1862456

    Affected packages

    Package

    Name: libssh

    Purl: pkg:rpm/rocky-linux/libssh?distro=rocky-linux-8-5-legacy&epoch=0

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0:0.9.4-3.el8

    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
    RLSA-2021:4387 | CVE-DB