group.of.nepali.translators team mailing list archive

[Marc Deslauriers <marc.deslauriers@xxxxxxxxxxxxx>]

** Also affects: gnome-keyring (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Also affects: gnome-keyring (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Changed in: gnome-keyring (Ubuntu)
       Status: New => Fix Released

** Changed in: gnome-keyring (Ubuntu Trusty)
       Status: New => Confirmed

** Changed in: gnome-keyring (Ubuntu Xenial)
       Status: New => Confirmed

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Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1772919

Title:
  pam-gnome-keyring.so reveals user’s password credential as a plaintext
  form

Status in gnome-keyring package in Ubuntu:
  Fix Released
Status in gnome-keyring source package in Trusty:
  Confirmed
Status in gnome-keyring source package in Xenial:
  Confirmed

Bug description:
  When I perform memory dump of session-child process, user’s login
  credential, including user accounts and their password, is revealed as
  a plaintext form.

  In ‘pam_sm_authenticate’ function, user’s password is stored in the
  heap memory of ‘pam_handle->data” to perform unlock the keyring in
  later.

  After unlocking the keyring, the pam module does not free/overwrite
  the memory area though the password is no longer used.

  We thus could find user’s login credentials.

  This raises concerns over the credential being misused for illegal
  behavior, such as acquiring user’s session key.

  It would be better to clean the heap memory.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: gnome-keyring 3.18.3-0ubuntu2
  ProcVersionSignature: Ubuntu 4.13.0-36.40~16.04.1-generic 4.13.13
  Uname: Linux 4.13.0-36-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.15
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Wed May 23 22:53:12 2018
  InstallationDate: Installed on 2018-04-20 (32 days ago)
  InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228)
  SourcePackage: gnome-keyring
  UpgradeStatus: No upgrade log present (probably fresh install)
  upstart.gnome-keyring-ssh.log: grep: /home/sungjungk/.config/autostart/gnome-keyring-ssh.desktop: No such file or directory

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