14.04 - Can't update nginx because of debconf - Ask Ubuntu

i'm on 14.04.5 lts. error when running normal apt-get upgrade:

setting nginx-common (1.10.1-3+trusty1) ... dpkg: error processing package nginx-common (--configure):    subprocess installed post-installation script returned error exit status 1 

i've omitted subsequent errors caused this, "package nginx-common not configured yet.", etc.

i followed process in this answer debug .postinst , never gets beyond 3rd line: . /usr/share/debconf/confmodule – that's what's returning 1.

i've tried this solution didn't help, debconf accessible. , these ones (the error persists). have no ipv6 listen directives in included conf files far can tell.

i have no clue how i'd debug debconf see why it's failing. know should try next?

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edit: new updates, install error @ end:

setting nginx-full (1.10.1-3+trusty2) ... initctl: invalid command: upgrade try `initctl --help' more information. invoke-rc.d: initscript nginx, action "upgrade" failed. 

not sure if should mark resolved.

this specific issue fixed, please update packages!

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ubuntu repositories (lp bug #1637058)

in ubuntu zesty's proposed repository (this in-development release, hope aren't using this...), 1.10.1-0ubuntu5 addresses issue.

in ubuntu trusty, xenial, , yakkety, security team has released updated versions of packages address issue, , considering regression in package. information detailed in bug , briefly in corresponding ubuntu security notice (usn-3114-2), issue fixed in following versions of package:

• ubuntu trusty: 1.4.6-1ubuntu3.7 (security , updates repositories)
• ubuntu xenial: 1.10.0-0ubuntu0.16.04.4 (security , updates repositories)
• ubuntu yakkety: 1.10.1-0ubuntu1.2 (security , updates repositories)

the version in ubuntu precise repositories not affected, never altered in way introduced cve prompted recent updates. (this applies ubuntu repositories, not ppas.)

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ppas (lp bug #1637200)

i have uploaded revised packages staging ppa address issue, , implement fix. these built without issue, , copied primary mainline , stable ppas on launchpad of 12:56 pm on october 27, 2016 (utc-04:00).

this includes fixes precise, trusty, xenial, , yakkety. ppas not yet have zesty support.

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obligatory disclosure:

i primary person on ubuntu server team in charge of nginx packages. maintain ppas reside under team @ https://launchpad.net/~nginx.

i have direct knowledge on issue, , process of fixes being made available, because helped discover problem affects recent security updates done, , debian.