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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2019-16905 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 3.x Severity and Vector Strings:

NIST CVSS score
NIST: NVD
Base Score:  7.8 HIGH
Vector:  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://0day.life/exploits/0day-1009.html Exploit  Third Party Advisory 
https://0day.life/exploits/0day-1009.html Exploit  Third Party Advisory 
https://bugzilla.suse.com/show_bug.cgi?id=1153537 Issue Tracking  Third Party Advisory 
https://bugzilla.suse.com/show_bug.cgi?id=1153537 Issue Tracking  Third Party Advisory 
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf Third Party Advisory 
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf Third Party Advisory 
https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.c Release Notes  Vendor Advisory 
https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.c Release Notes  Vendor Advisory 
https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.c.diff?r1=1.5&r2=1.6&f=h Patch 
https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.c.diff?r1=1.5&r2=1.6&f=h Patch 
https://security.gentoo.org/glsa/201911-01 Third Party Advisory 
https://security.gentoo.org/glsa/201911-01 Third Party Advisory 
https://security.netapp.com/advisory/ntap-20191024-0003/ Third Party Advisory 
https://security.netapp.com/advisory/ntap-20191024-0003/ Third Party Advisory 
https://ssd-disclosure.com/archives/4033/ssd-advisory-openssh-pre-auth-xmss-integer-overflow Exploit  Third Party Advisory 
https://ssd-disclosure.com/archives/4033/ssd-advisory-openssh-pre-auth-xmss-integer-overflow Exploit  Third Party Advisory 
https://www.openssh.com/releasenotes.html Release Notes 
https://www.openssh.com/releasenotes.html Release Notes 
https://www.openwall.com/lists/oss-security/2019/10/09/1 Mailing List  Third Party Advisory 
https://www.openwall.com/lists/oss-security/2019/10/09/1 Mailing List  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-190 Integer Overflow or Wraparound cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
7.7		Up to (including)
7.9
 cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
8.0		Up to (excluding)
8.1

Configuration 2 ( hide )
 cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:o:siemens:scalance_x204rna_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
3.2.7
Running on/with
 cpe:2.3:h:siemens:scalance_x204rna:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 4 ( hide )
 cpe:2.3:o:siemens:scalance_x204rna_ecc_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
3.2.7
Running on/with
 cpe:2.3:h:siemens:scalance_x204rna_ecc:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

13 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-16905
NVD Published Date:
10/09/2019
NVD Last Modified:
11/20/2024
Source:
MITRE