CVE-2019-3859

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    CVE-2019-3859

    Published: 21 Mar 2019Last Modified: 7 Aug 2026

    Summary:

    Details: An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the _libssh2_packet_require and _libssh2_packet_requirev functions. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.

    References: https://lists.debian.org/debian-lts-announce/2019/07/msg00024.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/, http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html, http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html, http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00102.html, http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00103.html, http://www.securityfocus.com/bid/107485, https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html, https://lists.debian.org/debian-lts-announce/2019/04/msg00006.html, https://seclists.org/bugtraq/2019/Apr/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-2019-3859.html, https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html, http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html, http://www.openwall.com/lists/oss-security/2019/03/18/3, https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3859, https://seclists.org/bugtraq/2019/Mar/25

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -f15b1e297f72882214988101ccdc5e6ad30d7e6e

    Affected versions

    libssh2-1.8.0

    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