https://bz.apache.org/bugzilla/show_bug.cgi?id=61546
Bug ID: 61546
Summary: [PATCH] mod_authz_dbd segfaults when AuthzDBDQuery
missing
Product: Apache httpd-2
Version: 2.4.27
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: mod_authz_dbd
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 35340
--> https://bz.apache.org/bugzilla/attachment.cgi?id=35340&action=edit
Patch fixing this issue
mod_authz_dbd segfaults when AuthzDBDQuery is missing in httpd configuration.
<Location /moria>
AuthName "The Mines of Moria"
AuthType Basic
AuthBasicProvider dbd
AuthDBDUserPWQuery "SELECT password FROM users WHERE username = %s"
Require dbd-group istari
#AuthzDBDQuery "SELECT groupname FROM groups WHERE username = %s"
</Location>
Since AuthzDBDQuery is not set, authz_dbd_prepare is not called and therefore
dbd_handle remains NULL.
This causes segmentation fault, if authz_dbd_login or authz_dbd_group_query
functions are triggered, because in the variable initialization is this code:
ap_dbd_t *dbd = dbd_handle(r);
I moved it after check, if cfg->query is NULL.
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