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CVE-2019-16905

nvd nist
Published: Oct 9, 2019Modified: Jun 17, 2026

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7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: NVD

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.

Affected (6)

Openbsd
1 product
Openssh
Netapp
2 products
Cloud Backup
Steelstore Cloud Integrated Storage
Siemens
2 products
Scalance X204rna Firmware
Scalance X204rna Ecc Firmware
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Openbsd
Openssh
From 7.7 to 7.9
Openssh
From 8.0 to 8.1
Configuration B
2 vulnerable
Vulnerable SoftwareAffected Versions
Cloud Backup
All versions
Steelstore Cloud Integrated Storage
All versions
Configuration C
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Scalance X204rna Firmware
Before 3.2.7
Running on/withPlatform Versions
Siemens
Scalance X204rna
All versions
Configuration D
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Scalance X204rna Ecc Firmware
Before 3.2.7
Running on/withPlatform Versions
Siemens
Scalance X204rna Ecc
All versions

Related CWEs

CWE-190
Integer Overflow or Wraparound
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

References (18)

Source: cve@mitre.org
Issue TrackingThird Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Release NotesVendor Advisory
Source: cve@mitre.org
Patch
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
ExploitThird Party Advisory
Source: cve@mitre.org
Release Notes
Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory

Timeline

No history available yet.