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This bug is created as a clone of upstream ticket:
https://fedorahosted.org/389/ticket/47817
Its possible that backend plugins can set the error text, which frees the existing result text(if any). The problem is that in the backend we grab a pointer to the result text before we call the backend postop plugins. If a plugin sets the result text we will get invalid read errors reported by valgrind.
Verification steps:
[1] install DS
[2] Enable the memberOf plugin
# ldapmodify ...
dn: cn=MemberOf Plugin,cn=plugins,cn=config
changetype: modify
replace: nsslapd-pluginEnabled
nsslapd-pluginEnabled: on
[3] Restart the server
[4] Misconfigure the memberOf plugin, which will reject the update operation and return an error string describing the problem:
# ldapmodify ...
dn: cn=MemberOf Plugin,cn=plugins,cn=config
changetype: modify
replace: memberofattr
memberofattr: cn
modifying entry "cn=MemberOf Plugin,cn=plugins,cn=config"
ldap_modify: Server is unwilling to perform (53)
additional info: The cn configuration attribute must be set to an attribute defined to use the Distinguished Name syntax. (illegal value: memberOfAttr)
[5] Done!
[root@dhcp201-126 ~]# ldapmodify -x -D "cn=directory manager" -w Secret123 -p 389 -h localhost << EOF
dn: cn=MemberOf Plugin,cn=plugins,cn=config
changetype: modify
replace: memberOfAttr
> memberOfAttr: cn
> EOF
modifying entry "cn=MemberOf Plugin,cn=plugins,cn=config"
ldap_modify: Server is unwilling to perform (53)
additional info: The cn configuration attribute must be set to an attribute defined to use the Distinguished Name syntax. (illegal value: memberOfAttr)
Hence marking as VERIFIED.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHSA-2015-0416.html