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.

Weakness classification

• nvd@nist.gov: CWE-190

Primary references

• cve@mitre.org — Issue Tracking, Third Party Advisory
• cve@mitre.org — Third Party Advisory
• cve@mitre.org — Release Notes, Vendor Advisory
• cve@mitre.org — Patch
• cve@mitre.org — Third Party Advisory
• cve@mitre.org — Third Party Advisory
• cve@mitre.org — Exploit, Third Party Advisory
• cve@mitre.org — Release Notes
• cve@mitre.org — Mailing List, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Vendor Advisory