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

[Ryan Finnie]

** Patch added: "lp1794629-artful.debdiff"
   https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1794629/+attachment/5200768/+files/lp1794629-artful.debdiff

** Patch removed: "bionic-upstream-delay-bailout-for-invalid-authenticating-user.patch"
   https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1794629/+attachment/5200217/+files/bionic-upstream-delay-bailout-for-invalid-authenticating-user.patch

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Title:
  CVE-2018-15473 - User enumeration vulnerability

Status in openssh package in Ubuntu:
  Confirmed

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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