[Bug 1674733] Re: php_network_getaddresses since last update

[Steve Beattie]

Joern, yes, that's what's happening, the new libnss_dns is being
dynamically loaded (dlopen'ed) but ends up querying the older
libresolv/libc, and there was mistakenly an ABI change introduced to
cope with CVE-2015-5180.

There are currently test glibc/eglibc packages building in the
https://launchpad.net/~ubuntu-security-proposed/+archive/ubuntu/ppa/
that revert this change (as it breaks other things, see bug 1674532).
Unfortunately, when the reversion is issued, that will likely mean
needing to restart you php-fpm processes again. :( I'm terribly sorry
about that.

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-5180

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https://bugs.launchpad.net/bugs/1674733

Title:
  php_network_getaddresses since last update

Status in glibc package in Ubuntu:
  Confirmed

Bug description:
  Hello,

  Since last update :

  2017-03-21 03:42:53,570 INFO Packages that will be upgraded: libc-bin
  libc-dev-bin libc6 libc6-dev libfreetype6 libfreetype6-dev locales
  multiarch-support

  
  We get a lot of these errors on our production and development environment (PHP Application on Codeigniter) on Ubuntu 14.04 on AWS EC2 :

  
  php_network_getaddresses: getaddrinfo failed: Name or service not known ubuntu


  Apparently we are not alone today :

  http://stackoverflow.com/questions/42926075/pdoexception-
  sqlstatehy000-2002-php-network-getaddresses-getaddrinfo-faile

  http://stackoverflow.com/questions/42925765/pdo-exception-php-network-
  getaddresses-getaddrinfo-failed-after-changing-dns

  http://serverfault.com/questions/839659/php-throwing-server-errors-
  after-ubuntu-ran-an-unattended-upgrades-session-any

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