CVE-2019-16905

Published: Oct 9, 2019Updated: Apr 23, 2025 Sources: CVE List NVD BDU csafCWE-190

7.8HIGH

NVD MITRE

Description

OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a client or server is configured to use a crafted XMSS key. This leads to memory corruption and local code execution because of an error in the XMSS key parsing algorithm. NOTE: the XMSS implementation is considered experimental in all released OpenSSH versions, and there is no supported way to enable it when building portable OpenSSH.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:LAttack Vector

Local

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-190

Affected Products

netapp

commercial·US

cloud backup

Hardware Firmware

steelstore cloud integrated storage

Hardware Firmware

siemens

commercial·DEaka siemens ag

scalance x204rna firmware

ICS / OT / IoT

scalance x204rna ecc firmware

ICS / OT / IoT

openbsd

oss-project·CA

opensshLibraryLibrary

OSS Libraries / generic-library

OpenBSD Project

oss-project·USaka openbsd

OpenSSHLibraryLibrary

OSS Libraries / generic-library

АО «НТЦ ИТ РОСА»

commercial·RU

ROSA Virtualization 3.0On-prem

Operating Systems / linux-distro

and 1 more affected products View all →

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Initial Access

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References

https://bugzilla.suse.com/show_bug.cgi?id=1153537

bugzilla.suse.com

https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

cert-portal.siemens.com

https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.c

cvsweb.openbsd.org

and 20 more references View all →

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