Unrated severityNVD Advisory· Published Oct 9, 2019· Updated Apr 23, 2025
CVE-2019-16905
CVE-2019-16905
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- OpenSSH/OpenSSHdescription
- Range: >=7.7, <8.1
Patches
Vulnerability mechanics
References
9- security.gentoo.org/glsa/201911-01mitrevendor-advisory
- bugzilla.suse.com/show_bug.cgimitre
- cert-portal.siemens.com/productcert/pdf/ssa-412672.pdfmitre
- cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.cmitre
- cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.c.diffmitre
- security.netapp.com/advisory/ntap-20191024-0003/mitre
- ssd-disclosure.com/archives/4033/ssd-advisory-openssh-pre-auth-xmss-integer-overflowmitre
- www.openssh.com/releasenotes.htmlmitre
- www.openwall.com/lists/oss-security/2019/10/09/1mitre
News mentions
0No linked articles in our index yet.