[Bug 1794629] Re: CVE-2018-15473 - User enumeration vulnerability

[root]

@set, That's fine, but scanned Qualys report suggests to install openssh
>7.8 to fix this bug!, not sure where is the issue, PFA for sample
qualys report, do you know how to change the openssh version and hide OS
version without compiling?, any SSHD_options? let me know.


Thanks

** Attachment added: "recent qualys report on a server with openssh 7.6p1"
   https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1794629/+attachment/5253000/+files/qualys_scan_report_2019.png

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https://bugs.launchpad.net/bugs/1794629

Title:
  CVE-2018-15473 - User enumeration vulnerability

Status in openssh package in Ubuntu:
  Fix Released
Status in openssh source package in Trusty:
  Fix Released
Status in openssh source package in Xenial:
  Fix Released
Status in openssh source package in Bionic:
  Fix Released
Status in openssh source package in Cosmic:
  Fix Released

Bug description:
  https://nvd.nist.gov/vuln/detail/CVE-2018-15473

  OpenSSH through 7.7 is prone to a user enumeration vulnerability due
  to not delaying bailout for an invalid authenticating user until after
  the packet containing the request has been fully parsed, related to
  auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c.

  Fixed in Debian: https://www.debian.org/security/2018/dsa-4280

  Currently pending triage? https://people.canonical.com/~ubuntu-
  security/cve/2018/CVE-2018-15473.html

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