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Bug 918686

Summary:	Escaped character cannot be used in the substring search filter
Product:	Red Hat Enterprise Linux 7	Reporter:	Nathan Kinder <nkinder>
Component:	389-ds-base	Assignee:	Rich Megginson <rmeggins>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Sankar Ramalingam <sramling>
Severity:	unspecified	Docs Contact:
Priority:	medium
Version:	7.0	CC:	amsharma, jgalipea, nhosoi
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	389-ds-base-1.3.1.2-1.el7	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-06-13 10:38:31 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Nathan Kinder 2013-03-06 18:12:58 UTC

This bug is created as a clone of upstream ticket:
https://fedorahosted.org/389/ticket/497

Bug description:
{{{
1) add an entry including '*' in an attribute value. E.g.,
dn: uid=tuser,dc=test,dc=com
[...]
description: This is the special * attribute value

2) search with the filter "(description=*\2a*)", which is supposed to
return the entry having:
description: This is the special * attribute value

But the current version returns no entry.
}}}

Observation:

{{{
slapi_escape_filter_value replaces the original "\2a" with "\\2a".  Then,
it's escaped again by filter_strcpy_special_ext in
ldbm_search_compile_filter to "\\\\2a".  Finally, ".*\\\\2a" is passed to
PCRE.  It does not match the value "This is the special * attribute
value".

If we skip calling slapi_escape_filter_value for the filter
"(description=*\2a*)", the regular expression pattern ".*\\*" is passed to
PCRE, which returns the matched entry.
}}}
(regression: fltr_32?)

Note: without calling slapi_escape_filter_value for substring search, the existing filter tests passed 100%.

Comment 1 Rich Megginson 2013-10-01 23:26:22 UTC

moving all ON_QA bugs to MODIFIED in order to add them to the errata (can't add bugs in the ON_QA state to an errata).  When the errata is created, the bugs should be automatically moved back to ON_QA.

Comment 3 Amita Sharma 2014-01-29 09:09:12 UTC

[root@dhcp201-149 ~]# ldapadd -x -h localhost -p 389 -D "cn=Directory Manager" -w Secret123  << EOF
> dn: uid=amsharma1,ou=people,dc=example,dc=com
> description: This is the special * attribute value
> cn: ams
> sn: ams
> givenname: ams
> objectclass: top
> objectclass: person
> objectclass: organizationalPerson
> objectclass: inetOrgPerson
> uid: ams
> mail: ams
> userpassword: amsamsams
> EOF
adding new entry "uid=amsharma1,ou=people,dc=example,dc=com"

[root@dhcp201-149 ~]# ldapsearch -x -h localhost -p 389 -D "cn=Directory Manager" -w Secret123 -b "ou=people,dc=example,dc=com" "(description=*\2a*)"
# extended LDIF
#
# LDAPv3
# base <ou=people,dc=example,dc=com> with scope subtree
# filter: (description=*\2a*)
# requesting: ALL
#

# amsharma1, People, example.com
dn: uid=amsharma1,ou=People,dc=example,dc=com
description: This is the special * attribute value
cn: ams
sn: ams
givenName: ams
objectClass: top
objectClass: person
objectClass: organizationalPerson
objectClass: inetOrgPerson
uid: ams
uid: amsharma1
mail: ams
userPassword:: e1NTSEF9Nzduc2RkWGlJdnY1bUFGQWxKM0x5dWRKVXFSb1FiSDJjLzNjeGc9PQ=

Hence VERIFIED.

Comment 4 Amita Sharma 2014-05-15 06:43:24 UTC

[RHEL7]
[svrbld@dhcp201-149 basic]$ svn ci basic.sh -m "Added test case for bug918686"
Sending        basic.sh
Transmitting file data .
Committed revision 8686.

[svrbld@dhcp201-149 basic]$ svn add user_escape.ldif
A         user_escape.ldif
[svrbld@dhcp201-149 basic]$ svn ci user_escape.ldif -m "Added data for bug918686"
Adding         user_escape.ldif
Transmitting file data .
Committed revision 8687.
[svrbld@dhcp201-149 basic]$ 


[Trunk]
[amsharma@amsharma basic]$ svn ci basic.sh -m "Added test case for bug918686"
Sending        basic.sh
Transmitting file data .
Committed revision 8688.

[amsharma@amsharma basic]$ svn add user_escape.ldif
A         user_escape.ldif
[amsharma@amsharma basic]$ svn ci user_escape.ldif -m "Added data for bug918686"
Adding         user_escape.ldif
Transmitting file data .
Committed revision 8689.

Comment 5 Ludek Smid 2014-06-13 10:38:31 UTC

This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.