An integer overflow flaw, which could lead to an out of bounds write, was discovered in libssh2 before 1.8.1 in the way keyboard prompt requests 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.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-1730-1 libssh2 security update
Debian DSA Debian DSA DSA-4431-1 libssh2 security update
EUVD EUVD EUVD-2019-13470 An integer overflow flaw, which could lead to an out of bounds write, was discovered in libssh2 before 1.8.1 in the way keyboard prompt requests 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.
Ubuntu USN Ubuntu USN USN-5308-1 libssh2 vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 23 Apr 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-04-23T19:48:00.365Z

Reserved: 2019-01-03T00:00:00.000Z

Link: CVE-2019-3856

cve-icon Vulnrichment

Updated: 2024-08-04T19:19:18.557Z

cve-icon NVD

Status : Modified

Published: 2019-03-25T19:29:01.790

Modified: 2024-11-21T04:42:43.640

Link: CVE-2019-3856

cve-icon Redhat

Severity : Important

Publid Date: 2019-03-13T00:00:00Z

Links: CVE-2019-3856 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses