Package: libnss-ldap
Version: 265-1
Severity: normal
Dear Maintainer,
* What led up to the situation?
* I upgraded my system using apt-get.
* What exactly did you do (or not do) that was effective (or
ineffective)?
After upgrading to nss-ldap-265-1, a substantial number of critical
system binaries segfault immediately, including:
* logins
* zsh
* bash
* sudo
* ssh
* resolvconf
* What was the outcome of this action?
* My system was placed into a state that was impossible to
adminstrate/fix, as I could not login as root, nor could I sudo to
root. Recovery was only possible by booting to a USB drive, and
recovering the system from there. Many login shells would not work
(bash, zsh).
* What outcome did you expect instead?
* A clean upgrade, with overall system functionality intact - maybe a
few bugs (perhaps even serious), but not an entirely unusable system.
After rolling back to a different BTRFS snapshot, I was able to confirm
this happens when libnss-ldap is upgraded to 265-1.:
* I rolled back to a pre-upgrade state
* Made a start snapshot
* Mounted the start snapshot
* mounted (bind) /dev, /dev/pts, /proc, /sys into the chroot.
* chrooted to the start snapshot
* apt-get install libnss-ldap
At this point, sudo, zsh, bash, and other programs segfault
immediately.
I then held libnss-ldap to version 264-2.5, and ran an apt-get upgrade,
which was uneventful. I then proceeded to do a snapshot/chroot test cycle,
and was able to confirm again that upgrading libnss-ldap (and only
libnss-ldap) would reproduce this issue for me.
-- System Information:
Debian Release: jessie/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.11-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages libnss-ldap depends on:
ii debconf [debconf-2.0] 1.5.51
ii libc6 2.17-93
ii libcomerr2 1.42.8-1
ii libgssapi-krb5-2 1.11.3+dfsg-3
ii libkrb5-3 1.11.3+dfsg-3
ii libldap-2.4-2 2.4.31-1+nmu2+b1
ii libsasl2-2 2.1.25.dfsg1-17
ii multiarch-support 2.17-93
Versions of packages libnss-ldap recommends:
ii libpam-ldap 184-8.6
ii nscd 2.17-93
libnss-ldap suggests no packages.
-- debconf information:
* libnss-ldap/confperm: false
* shared/ldapns/ldap-server: ldap://pilot.pariahzero.net/
* libnss-ldap/rootbinddn: cn=admin,dc=pilot,dc=pariahzero,dc=net
* shared/ldapns/ldap_version: 3
libnss-ldap/override: true
* libnss-ldap/dbrootlogin: true
libnss-ldap/binddn: cn=proxyuser,dc=example,dc=net
* libnss-ldap/nsswitch:
* shared/ldapns/base-dn: dc=pilot,dc=pariahzero,dc=net
* libnss-ldap/dblogin: false
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