CVE-2019-3857 HIGH

CVE-2019-3857

Vendor The Libssh2 Project
Product libssh2
Weakness CWE-190
Published March 25, 2019
Last update April 23, 2025
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.

Key dates

02Disclosure timeline

March 25, 2019 CVE published
April 23, 2025 Record updated