CVE catalog
CVE-2019-16905
openssh: CVE-2019-16905
- Severity
- High · CVSS 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.23% · Oct 22, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | openssh | sid | 1:10.6p1-1 | fixed |
| Debian | openssh | forky | 1:10.6p1-1 | fixed |
| Debian | openssh | trixie | 1:10.0p1-7+deb13u4 | fixed |
| Debian | openssh | trixie-security | 1:10.0p1-7+deb13u2 | fixed |
| Debian | openssh | bookworm | 1:9.2p1-2+deb12u10 | fixed |
| Debian | openssh | bookworm-security | 1:9.2p1-2+deb12u9 | fixed |
| Cpe | openssh | Not reported | 8.1 | fixed |
| Cpe | cloud_backup | Not reported | Not reported | unknown |
| Cpe | steelstore_cloud_integrated_storage | Not reported | Not reported | unknown |
| Cpe | scalance_x204rna_firmware | Not reported | 3.2.7 | fixed |
| Cpe | scalance_x204rna_ecc_firmware | Not reported | 3.2.7 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | openssh | source | sid | 1:8.1p1-1 | unimportant | Not reported | Not reported |
| Debian | openssh | source | forky | 1:8.1p1-1 | unimportant | Not reported | Not reported |
| Debian | openssh | source | trixie | 1:8.1p1-1 | unimportant | Not reported | Not reported |
| Debian | openssh | source | bookworm | 1:8.1p1-1 | unimportant | Not reported | Not reported |
| Cpe | openssh | cpe | Not reported | 8.1 | Not reported | NVD-CVE-2019-16905 | Not reported |
| Cpe | scalance_x204rna_firmware | cpe | Not reported | 3.2.7 | Not reported | NVD-CVE-2019-16905 | Not reported |
| Cpe | scalance_x204rna_ecc_firmware | cpe | Not reported | 3.2.7 | Not reported | NVD-CVE-2019-16905 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [openssh-client]Fixed
Source package: [openssh]
Details (8)
1:9.2p1-2+deb12u10· amd64 · bookwormFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u10· arm64 · bookwormFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:10.0p1-7~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:10.0p1-7~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u9· amd64 · bookworm-securityFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u9· arm64 · bookworm-securityFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u7· amd64 · bookworm-updatesFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u7· arm64 · bookworm-updatesFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
- [openssh-client-gssapi]Fixed
Source package: [openssh]
Details (2)
1:10.0p1-7~bpo12+1· all · bookworm-backportsFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:10.0p1-7~bpo12+1· all · bookworm-backportsFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
- [openssh-server]Fixed
Source package: [openssh]
Details (8)
1:9.2p1-2+deb12u10· amd64 · bookwormFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u10· arm64 · bookwormFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:10.0p1-7~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:10.0p1-7~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u9· amd64 · bookworm-securityFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u9· arm64 · bookworm-securityFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u7· amd64 · bookworm-updatesFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u7· arm64 · bookworm-updatesFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
- [openssh-server-gssapi]Fixed
Source package: [openssh]
Details (2)
1:10.0p1-7~bpo12+1· all · bookworm-backportsFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:10.0p1-7~bpo12+1· all · bookworm-backportsFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
- [openssh-sftp-server]Fixed
Source package: [openssh]
Details (8)
1:9.2p1-2+deb12u10· amd64 · bookwormFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u10· arm64 · bookwormFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:10.0p1-7~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:10.0p1-7~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u9· amd64 · bookworm-securityFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u9· arm64 · bookworm-securityFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u7· amd64 · bookworm-updatesFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u7· arm64 · bookworm-updatesFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
- [openssh-tests]Fixed
Source package: [openssh]
Details (8)
1:9.2p1-2+deb12u10· amd64 · bookwormFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u10· arm64 · bookwormFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:10.0p1-7~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:10.0p1-7~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u9· amd64 · bookworm-securityFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u9· arm64 · bookworm-securityFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u7· amd64 · bookworm-updatesFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u7· arm64 · bookworm-updatesFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
- [ssh]Fixed
Source package: [openssh]
Details (8)
1:9.2p1-2+deb12u10· all · bookwormFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u10· all · bookwormFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:10.0p1-7~bpo12+1· all · bookworm-backportsFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:10.0p1-7~bpo12+1· all · bookworm-backportsFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u9· all · bookworm-securityFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u9· all · bookworm-securityFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u7· all · bookworm-updatesFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u7· all · bookworm-updatesFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
- [ssh-askpass-gnome]Fixed
Source package: [openssh]
Details (8)
1:9.2p1-2+deb12u10· amd64 · bookwormFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u10· arm64 · bookwormFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:10.0p1-7~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:10.0p1-7~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u9· amd64 · bookworm-securityFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u9· arm64 · bookworm-securityFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u7· amd64 · bookworm-updatesFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
1:9.2p1-2+deb12u7· arm64 · bookworm-updatesFixed · Fixed:
1:8.1p1-1dsa · openssh · debian · bookworm
Observed:
References
- [https://cert-portal.siemens.com/productcert/csaf/ssa-412672.json]
- [https://ftp.suse.com/pub/projects/security/]
- [https://nvd.nist.gov/vuln/detail/CVE-2019-16905]
- [https://osv.dev/vulnerability/CVE-2019-16905]
- [https://security-tracker.debian.org/tracker/CVE-2019-16905]
- [https://wid.cert-bund.de/.well-known/csaf/white/2019/wid-sec-w-2023-0998.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]