Packages in the PPA have been successfully tested, and upstream has commited a slightly more exhaustive fix:
https://www.sudo.ws/repos/sudo/rev/1d13341d53ec I have uploaded the fix to yakkety. I have uploaded the fix to xenial for processing by the SRU team. ** Changed in: sudo (Ubuntu) Status: Confirmed => Fix Committed ** Changed in: sudo (Ubuntu Xenial) Status: Confirmed => In Progress ** Changed in: sudo (Ubuntu Xenial) Importance: Undecided => High ** Description changed: + [Impact] + + In certain environments, for example when using LDAP, users can end up + in a group with no name. When that happens, sudo crashes when attempting + to look up the group name for the debug log. + + Upstream has commited a simple fix for this issue, it has been commited + to Yakkety, and uploaded to Xenial. + + [Test Case] + + I currently don't know an easy way to reproduce this, it is environment- + specific. A package containing the fix was successfully tested in the + problematic environment. + + [Regression Potential] + + A regression in the patch would prevent users from using sudo. The risk + of regression is low since the patch only changes the debug log. + + + Original report: + If the user is in a group with no name (because libnss-db got removed and the group was defined there, for example...) then: the call to sudo_debug_printf in sudo_getgrgid (plugins/sudoers/pwutil.c, line 462) causes a SEGV when trying to get item->d.gr->gr_name (since item->d.gr is NULL). -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to sudo in Ubuntu. https://bugs.launchpad.net/bugs/1565567 Title: segv in sudo_getgrgid Status in sudo: Unknown Status in sudo package in Ubuntu: Fix Committed Status in sudo source package in Xenial: In Progress Bug description: [Impact] In certain environments, for example when using LDAP, users can end up in a group with no name. When that happens, sudo crashes when attempting to look up the group name for the debug log. Upstream has commited a simple fix for this issue, it has been commited to Yakkety, and uploaded to Xenial. [Test Case] I currently don't know an easy way to reproduce this, it is environment-specific. A package containing the fix was successfully tested in the problematic environment. [Regression Potential] A regression in the patch would prevent users from using sudo. The risk of regression is low since the patch only changes the debug log. Original report: If the user is in a group with no name (because libnss-db got removed and the group was defined there, for example...) then: the call to sudo_debug_printf in sudo_getgrgid (plugins/sudoers/pwutil.c, line 462) causes a SEGV when trying to get item->d.gr->gr_name (since item->d.gr is NULL). To manage notifications about this bug go to: https://bugs.launchpad.net/sudo/+bug/1565567/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
