vulnerability

Red Hat: CVE-2018-15919: openssh: User enumeration via malformed packets in authentication requests

Name: Red Hat: CVE-2018-15919: openssh: User enumeration via malformed packets in authentication requests
Creator: Red Hat
Published: 2018-08-28T00:00:00.000Z
Keywords: CVE, Red Hat, 2018, 15919, openssh, no-fix-redhat-rpm-package, Severity 5

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Severity

CVSS

(AV:N/AC:L/Au:N/C:P/I:N/A:N)

Published

Aug 28, 2018

Added

Jul 9, 2025

Modified

Jul 9, 2025

Description

Remotely observable behaviour in auth-gss2.c in OpenSSH through 7.8 could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. NOTE: the discoverer states 'We understand that the OpenSSH developers do not want to treat such a username enumeration (or "oracle") as a vulnerability.'

Solution

no-fix-redhat-rpm-package

References

NVD-CVE-2018-15919

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