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    CVE-2019-3858

    An out of bounds read flaw was discovered in libssh2 before 1.8.1 when a specially crafted SFTP packet is received from the server. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.

    Published:Mar 13, 2019
    Last Modified:Nov 21, 2024
    EPS:Mar 21, 2019
    EPSS Score:0.01677
    CVSS Score:5

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Libssh2
    Product
    Libssh2
    Vendor
    Netapp
    Product
    Ontap Select Deploy Administration Utility
    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Redhat
    Product
    Ansible Tower
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

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    CVE-2026-49975 (CVSS 7.5) — Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of …
    CVE-2026-9256 (CVSS 9.2) — NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerabilit…
    CVE-2026-31431 (CVSS 7.8) — In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating …
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    References

    http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
    http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
    http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html
    http://www.openwall.com/lists/oss-security/2019/03/18/3
    http://www.securityfocus.com/bid/107485
    https://access.redhat.com/errata/RHSA-2019:2136
    https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3858
    https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/
    https://seclists.org/bugtraq/2019/Apr/25
    https://seclists.org/bugtraq/2019/Mar/25
    https://security.netapp.com/advisory/ntap-20190327-0005/
    https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767
    https://www.debian.org/security/2019/dsa-4431
    https://www.libssh2.org/CVE-2019-3858.html
    https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
    http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
    http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
    http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html
    http://www.openwall.com/lists/oss-security/2019/03/18/3
    http://www.securityfocus.com/bid/107485
    https://access.redhat.com/errata/RHSA-2019:2136
    https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3858
    https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/
    https://seclists.org/bugtraq/2019/Apr/25
    https://seclists.org/bugtraq/2019/Mar/25
    https://security.netapp.com/advisory/ntap-20190327-0005/
    https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767
    https://www.debian.org/security/2019/dsa-4431
    https://www.libssh2.org/CVE-2019-3858.html
    https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

    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