8.1
CWE
190
Advisory Published
Updated

CVE-2019-17498: Integer Overflow

First published: Mon Oct 21 2019(Updated: )

In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Oracle Libssh2<=1.9.0
Red Hat Fedora=30
Red Hat Fedora=31
SUSE Linux=15.1
Debian Linux=8.0
Debian Linux=9.0
NetApp Active IQ Unified Manager for VMware vSphere
NetApp Management Services for Element Software
NetApp SolidFire & HCI Management Node
NetApp ONTAP Select Deploy
NetApp SolidFire & HCI Storage Node
NetApp HCI Bootstrap OS
NetApp HCI Compute Node

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Frequently Asked Questions

  • What is the vulnerability ID for this vulnerability?

    The vulnerability ID for this vulnerability is CVE-2019-17498.

  • What is the severity of CVE-2019-17498?

    The severity of CVE-2019-17498 is high with a severity value of 8.1.

  • Which software versions are affected by CVE-2019-17498?

    Libssh2 versions up to and including 1.9.0 are affected by CVE-2019-17498.

  • How does this vulnerability work?

    This vulnerability is caused by an integer overflow in the SSH_MSG_DISCONNECT logic, allowing an attacker to specify an arbitrary offset for a memory read.

  • What is the potential impact of CVE-2019-17498?

    A crafted SSH server may be able to disclose sensitive information or cause a denial-of-service condition.

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