Vulnerability Monitor

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CVE-2019-3863

A flaw was found in libssh2 before 1.8.1 creating a vulnerability on the SSH client side. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used by the SSH client as an index to copy memory causing in an out of bounds memory write error.

Published

2019-03-25T18:29:01.590

Last Modified

2025-12-19T04:15:59.683

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

8.6

Impact Score

6.4

Weaknesses
  • Type: Secondary
    CWE-190
    CWE-787
  • Type: Primary
    CWE-787
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application libssh2 libssh2 < 1.8.1 Yes
Operating System debian debian_linux 8.0 Yes
Application netapp ontap_select_deploy_administration_utility - Yes
Operating System opensuse leap 15.0 Yes
Operating System opensuse leap 42.3 Yes
Operating System redhat enterprise_linux_desktop 7.0 Yes
Operating System redhat enterprise_linux_server 7.0 Yes
Operating System redhat enterprise_linux_server_aus 7.6 Yes
Operating System redhat enterprise_linux_server_eus 7.6 Yes
Operating System redhat enterprise_linux_server_tus 7.6 Yes
Operating System redhat enterprise_linux_workstation 7.0 Yes
References