This bug was fixed in the package adsys - 0.14.2~24.04
---------------
adsys (0.14.2~24.04) noble; urgency=medium
* Fix DCONF policy manager removing user DB on empty policy (LP: #2078245)
* Ignore casing in domain/ section of sssd.conf (LP: #2078246)
* Fix parsing of slash usernames (i.e. domain\user) (LP: #2078247)
* Fix errno in get_ticket_path() (LP: #2078473)
-- Denison Barbosa <denison.barb...@canonical.com> Fri, 30 Aug 2024
10:28:07 -0400
** Changed in: adsys (Ubuntu Noble)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/2078247
Title:
rewrite from / to @ formats overwrites usernames
Status in adsys package in Ubuntu:
Fix Released
Status in adsys source package in Jammy:
Fix Released
Status in adsys source package in Noble:
Fix Released
Bug description:
tracking bug
https://bugs.launchpad.net/ubuntu/+source/adsys/+bug/2078245
[ Impact ]
In this code, the string was not zero terminated properly when
overwritten resulting in extra characters:
static char *slash_to_at_username(const char *username) {
char *backslash = strchr(username, '\\');
if (backslash != NULL) {
char *ret = malloc((strlen(username) + 1) * sizeof(char));
strcpy(ret, backslash + 1);
strcat(ret, "@");
strncpy(ret + strlen(ret), username, backslash - username);
return ret;
}
return strdup(username);
For instance:
domain.tld\\user was changed to user@domain.tldld
So se user cannot login with the domain\user format
[ Test Plan ]
1. On a machine joined to an AD domain with ADsys installed, login
with domain\user
=> Without the patch the user cannot log in
=> With the patch the user can log in
[ Where problems could occur ]
Worst case the user still cannot log in
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