CVEvulnerability
CVE-2019-16905
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-10-09
- Last modified
- 2026-10-14
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 4.4 MEDIUM — AV:L/AC:M/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-190
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 configurations
• openbsd openssh (>= 7.7 <= 7.9)
• openbsd openssh (>= 8.0 < 8.1)
• netapp cloud backup
• netapp steelstore cloud integrated storage
• siemens scalance x204rna firmware (< 3.2.7)
• siemens scalance x204rna ecc firmware (< 3.2.7)
Related
Weakness · CWE (1)
- CWE-190 Integer Overflow or Wraparound weakness
References
- 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://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://security.gentoo.org/glsa/201911-01 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://www.openssh.com/releasenotes.html Release Notes
- https://www.openwall.com/lists/oss-security/2019/10/09/1 Mailing List, 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://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://security.gentoo.org/glsa/201911-01 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://www.openssh.com/releasenotes.html Release Notes
- https://www.openwall.com/lists/oss-security/2019/10/09/1 Mailing List, Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html cert-portal.siemens.com
- https://cert-portal.siemens.com/productcert/html/ssa-412672.html cert-portal.siemens.com