CVE-2019-17498

Advisory lineage Upstream: 0 Downstream: 21
Modified
Published: 21 Oct 2019, 00:00
Last modified:05 Aug 2024, 01:40

Vulnerability Summary

Overall Risk (default)
medium
43/100
CVSS Score
8.1 HIGH
v3.1 (nvd)
EPSS Score
1.42% LOW
1% probability -0.78%
KEV
Not listed
Ransomware
No reports
Public exploits
2 found
Dark Web
Not detected

Timeline

21 Oct 2019, 00:00
Published
Vulnerability first disclosed
05 Aug 2024, 01:40
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•HIGH•Score: 8.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
  • v2.0•MEDIUM•Score: 5.8AV:N/AC:M/Au:N/C:P/I:N/A:P

EPSS Trends

Current EPSS score: 1.42%• Percentile: 81%

Techniques & Countermeasures

  • CWE-190•Integer Overflow or Wraparound

    The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Affected Systems

  • debian•debian_linux

    8.0 | 9.0

  • fedoraproject•fedora

    30 | 31

  • libssh2•libssh2

    ≤ 1.9.0

  • netapp•active_iq_unified_manager

    na

  • netapp•bootstrap_os

    na

  • netapp•element_software

    na

  • netapp•hci_management_node

    na

  • netapp•ontap_select_deploy_administration_utility

    na

  • netapp•solidfire

    na

  • opensuse•leap

    15.1

References (12)