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CVE-2019-16905

Published: Oct 9, 2019Updated: Apr 23, 2025 Sources: CVE List NVD BDU csafCWE-190
7.8HIGH
NVD MITRE
EPSS Score
2.2%
Top 19.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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

AV:LAC:LPR:LUI:NS:UC:HI:HA:H
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
Open in CVSS calculator →

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
View detailed technique mapping

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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