Ubuntu 21.10 (Impish Indri) has reached end of life, so this bug will
not be fixed for that specific release.
** Changed in: pam (Ubuntu Impish)
Status: New => Won't Fix
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https://bugs.launchpad.net/bugs/1892825
Title:
update-locale not perform correctly sanity checks
Status in glibc package in Ubuntu:
Fix Released
Status in pam package in Ubuntu:
New
Status in glibc source package in Bionic:
Fix Released
Status in pam source package in Bionic:
New
Status in glibc source package in Focal:
Fix Released
Status in pam source package in Focal:
New
Status in glibc source package in Hirsute:
Won't Fix
Status in pam source package in Hirsute:
New
Status in glibc source package in Impish:
Won't Fix
Status in pam source package in Impish:
Won't Fix
Bug description:
[impact]
A simple typo using the update-locale script can render a system inoperable
without booting into single user mode or similar:
$ sudo update-locale LANGUAGE = en_US.UTF-8
$ sudo -s
sudo: pam_open_session: Bad item passed to pam_*_item()
sudo: policy plugin failed session initialization
[test case]
$ cp /etc/default/locale /tmp/locale
$ update-locale --locale-file /tmp/locale LANGUAGE = en_US.UTF-8
"diff -u /etc/default/locale /tmp/locale" should be empty.
$ update-locale --locale-file /tmp/locale LANGUAGE=en_US.UTF-8
The LANGUAGE=en_US.UTF-8 line should have been replaced by
LANGUAGE=en_GB.UTF-8.
$ update-locale --locale-file /tmp/locale LANGUAGE
The LANGUAGE setting is now commented out.
[regression potential]
Apart from the general concerns about a glibc rebuild, this is a simple
change to a simple script. Performing the test as in the test case section is
enough to ensure it still works.
[original description]
By passing wrong input as following:
sudo update-locale LANGUAGE = en_US.UTF-8
result is:
...
#LANGUAGE=en
=
This "equal" sign that was added makes system completely
unusable(can't run sudo anymore):
bentzy@bentzy-nb:~$ sudo vim /etc/default/locale
sudo: pam_open_session: Bad item passed to pam_*_item()
sudo: policy plugin failed session initialization
Fixed it booting from installation disk and fixing corrupted
/etc/default/locale
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: locales 2.31-0ubuntu9
Uname: Linux 5.5.4-050504-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.6
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Tue Aug 25 09:36:03 2020
InstallationDate: Installed on 2020-08-17 (7 days ago)
InstallationMedia: Kubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
PackageArchitecture: all
SourcePackage: glibc
UpgradeStatus: No upgrade log present (probably fresh install)
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