Vulnerability Monitor

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CVE-2019-13115

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.

Published

2019-07-16T18:15:13.287

Last Modified

2024-11-21T04:24:13.313

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.1 (HIGH)

CVSSv2 Vector

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

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

8.6

Impact Score

4.9

Weaknesses
  • Type: Primary
    CWE-125
    CWE-190
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application libssh2 libssh2 < 1.9.0 Yes
Operating System debian debian_linux 8.0 Yes
Operating System debian debian_linux 9.0 Yes
Operating System fedoraproject fedora 29 Yes
Operating System fedoraproject fedora 30 Yes
Application netapp cloud_backup - Yes
Application netapp e-series_santricity_os_controller ≤ 11.70.1 Yes
Application netapp ontap_select_deploy_administration_utility - Yes
Application f5 traffix_systems_signaling_delivery_controller ≤ 5.1.0 Yes
References