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CVE-2019-3856 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html	CVE	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0679	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1175	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1652	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1791	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1943	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2399	CVE	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3856	CVE	Issue TrackingPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html	CVE	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/	CVE
https://seclists.org/bugtraq/2019/Apr/25	CVE	Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20190327-0005/	CVE	Third Party Advisory
https://www.debian.org/security/2019/dsa-4431	CVE	Third Party Advisory
https://www.libssh2.org/CVE-2019-3856.html	CVE	PatchVendor Advisory
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html	CVE	PatchThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html	[email protected]	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0679	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1175	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1652	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1791	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1943	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2399	[email protected]	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3856	[email protected]	Issue TrackingPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html	[email protected]	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/	[email protected]
https://seclists.org/bugtraq/2019/Apr/25	[email protected]	Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20190327-0005/	[email protected]	Third Party Advisory
https://www.debian.org/security/2019/dsa-4431	[email protected]	Third Party Advisory
https://www.libssh2.org/CVE-2019-3856.html	[email protected]	PatchVendor Advisory
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html	[email protected]	PatchThird Party Advisory

see all 32 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-190	Integer Overflow or Wraparound	[email protected]
CWE-787	Out-of-bounds Write	[email protected]
CWE-190	Integer Overflow or Wraparound	[email protected]
CWE-787	Out-of-bounds Write	[email protected]

Affected Products

Product	Versions
libssh2 libssh2	< 1.8.1
CPE cpe:2.3:a:libssh2:libssh2:::::::: Remediation No remediation found in references.
debian debian linux	8.0 9.0
CPE cpe:2.3:o:debian:debian_linux:8.0:::::::* cpe:2.3:o:debian:debian_linux:9.0:::::::* Remediation No remediation found in references.
netapp ontap select deploy administration utility	All versions
CPE cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:::::::* Remediation No remediation found in references.
opensuse leap	15.0 42.3
CPE cpe:2.3:o:opensuse:leap:15.0:::::::* cpe:2.3:o:opensuse:leap:42.3:::::::* Remediation No remediation found in references.
redhat enterprise linux	8.0
CPE cpe:2.3:o:redhat:enterprise_linux:8.0::::advanced_virtualization::: Remediation No remediation found in references.
redhat enterprise linux desktop	7.0
CPE cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:::::::* Remediation No remediation found in references.
redhat enterprise linux server	7.0
CPE cpe:2.3:o:redhat:enterprise_linux_server:7.0:::::::* Remediation No remediation found in references.
redhat enterprise linux server aus	7.6
CPE cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:::::::* Remediation No remediation found in references.
redhat enterprise linux server eus	7.6
CPE cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:::::::* Remediation No remediation found in references.
redhat enterprise linux server tus	7.6
CPE cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:::::::* Remediation No remediation found in references.
redhat enterprise linux workstation	7.0
CPE cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:::::::* Remediation No remediation found in references.
fedoraproject fedora	28
CPE cpe:2.3:o:fedoraproject:fedora:28:::::::* Remediation No remediation found in references.
oracle peoplesoft enterprise peopletools	8.56 8.57
CPE cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.56:::::::* cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:::::::* Remediation No remediation found in references.

Change History

24 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Oct 15, 2020	Modified Analysis	[email protected]
Oct 15, 2020	CPE Deprecation Remap	[email protected]
Oct 16, 2019	CVE Modified	[email protected]
Oct 9, 2019	CVE Modified	[email protected]
Aug 7, 2019	CVE Modified	[email protected]
Jul 30, 2019	CVE Modified	[email protected]
Jul 16, 2019	CVE Modified	[email protected]
Jul 2, 2019	CVE Modified	[email protected]
May 14, 2019	CVE Modified	[email protected]
Apr 15, 2019	CVE Modified	[email protected]
Apr 5, 2019	CVE Modified	[email protected]
Apr 2, 2019	Modified Analysis	[email protected]
Apr 2, 2019	CVE Modified	[email protected]
Mar 28, 2019	CVE Modified	[email protected]
Mar 28, 2019	CVE Modified	[email protected]
Mar 28, 2019	Modified Analysis	[email protected]
Mar 27, 2019	CVE Modified	[email protected]
Mar 26, 2019	Initial Analysis	[email protected]
Mar 26, 2019	CVE Modified	[email protected]

CVE-2019-3856 Details

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