CVE-2019-3860

libssh2: Out-of-bounds reads with specially crafted SFTP packets

Published Mar 25, 2019 CVSS 3.0 · 5 Medium EPSS 5.4% KEV · Not listed
Description
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SFTP packets with empty payloads are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-1730-1 libssh2 security update
Debian DLA Debian DLA DLA-1730-4 libssh2 regression update
Debian DSA Debian DSA DSA-4431-1 libssh2 security update
EUVD EUVD EUVD-2019-13474 An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SFTP packets with empty payloads are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
Ubuntu USN Ubuntu USN USN-5308-1 libssh2 vulnerabilities
Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Oct 14, 2026, 6:35 AM
Reserved
Jan 3, 2019, 12:00 AM
Status
Modified
Published
Mar 25, 2019, 7:29 PM
Modified
Oct 14, 2026, 7:16 AM
Severity
Moderate
Public date
Mar 13, 2019, 12:00 AM