high
8.1
CWE
125 190
Advisory Published
Updated

CVE-2019-13115: Integer Overflow

First published: Tue Jul 16 2019(Updated: )

In libssh2 before 1.9.0, kex_method_diffie_hellman_group_exchange_sha256_key_exchange in kex.c has an integer overflow that could lead to an out-of-bounds read in the way packets are read from the server. A remote attacker who compromises a 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. This is related to an _libssh2_check_length mistake, and is different from the various issues fixed in 1.8.1, such as CVE-2019-3855.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Libssh2 Libssh2<1.9.0
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Fedoraproject Fedora=29
Fedoraproject Fedora=30
Netapp Cloud Backup
NetApp E-Series SANtricity OS Controller>=11.0.0<=11.70.1
NetApp ONTAP Select Deploy administration utility
F5 Traffix Systems Signaling Delivery Controller>=5.0.0<=5.1.0

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID for this vulnerability?

    The vulnerability ID for this vulnerability is CVE-2019-13115.

  • What is the severity of CVE-2019-13115?

    The severity of CVE-2019-13115 is high with a CVSS score of 8.1.

  • How does CVE-2019-13115 affect Libssh2?

    CVE-2019-13115 affects Libssh2 versions before 1.9.0 and could lead to an out-of-bounds read in the way packets are read from the server, potentially disclosing sensitive information.

  • Which software versions are affected by CVE-2019-13115?

    CVE-2019-13115 affects Libssh2 versions before 1.9.0, Debian Linux versions 8.0 and 9.0, Fedora versions 29 and 30, Netapp Cloud Backup, NetApp E-Series SANtricity OS Controller versions between 11.0.0 and 11.70.1, and NetApp ONTAP Select Deploy administration utility.

  • How can I fix CVE-2019-13115?

    To fix CVE-2019-13115, it is recommended to update to Libssh2 version 1.9.0 or later.

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