PT-2018-3091

CVE-2019-3859

·

Published

2018-12-03

·

Updated

2026-10-31

Description by

CVSS 2.0
9.4
Critical
MetricsAV:N/AC:L/Au:N/C:C/I:N/A:C
Name of the Vulnerable Software and Affected Versions libssh2 versions prior to 1.8.1
Description The issue is related to an out of bounds read flaw in the libssh2 packet require and libssh2 packet requirev functions of the libssh2 library. This flaw can be exploited by a remote attacker who compromises an SSH server, potentially allowing them to cause a Denial of Service or read data in the client memory.
Recommendations For versions prior to 1.8.1, update to version 1.8.1 or later to resolve the issue. As a temporary workaround, consider restricting access to SSH servers until the update is applied.
Exploitability
Exploit
Fix
Impacts
Researchers
Vendors
Affected products
Related identifiers
ALT-PU-2019-1501
CLEANSTART-2023-OK81883
DLA-1730-1
DLA-1730-2
DLA-1730-3
DSA-4431-1
MGASA-2019-0139
OPENSUSE-SU-2019_1075-1
OPENSUSE-SU-2019:1109-1
OPENSUSE-SU-2019_1109-1
OPENSUSE-SU-2019_1290-1
OPENSUSE-SU-2019:1291-1
OPENSUSE-SU-2019_1291-1
OPENSUSE-SU-2020:2126-1
OPENSUSE-SU-2020_2126-1
OPENSUSE-SU-2020:2129-1
OPENSUSE-SU-2020_2129-1
OPENSUSE-SU-2024:10999-1
SUSE-SU-2019:0655-1
SUSE-SU-2019:1059-1
SUSE-SU-2019_1059-1
SUSE-SU-2019:1060-1
SUSE-SU-2019_1060-1
SUSE-SU-2019:13982-1
SUSE-SU-2019:13997-1
SUSE-SU-2019:14031-1
SUSE-SU-2019_14031-1
SUSE-SU-2019:14032-1
SUSE-SU-2020:3551-1
USN-5308-1
Found an issue in the description? Have something to add? Feel free to write us 👾