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Bug 1109333 - 389 Server crashes if uniqueMember is invalid syntax and memberOf plugin is enabled.
Summary: 389 Server crashes if uniqueMember is invalid syntax and memberOf plugin is e...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: 389-ds-base
Version: 6.0
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Noriko Hosoi
QA Contact: Sankar Ramalingam
URL:
Whiteboard:
Depends On:
Blocks: 1109334
TreeView+ depends on / blocked
 
Reported: 2014-06-13 17:13 UTC by Noriko Hosoi
Modified: 2020-09-13 21:04 UTC (History)
4 users (show)

Fixed In Version: 389-ds-base-1.2.11.15-34.el6
Doc Type: Bug Fix
Doc Text:
Cause: MemberOf plugin code assumes the DN value has the correct syntax, and does not check the normalized value of that DN. Consequence: This leads to dereferencing a NULL pointer and crash. Fix: Check the normalized value, and log a proper error. Result: Invalid DN does not cause the crash and it is logged in the error log.
Clone Of:
: 1109334 (view as bug list)
Environment:
Last Closed: 2014-10-14 07:55:17 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Github 389ds 389-ds-base issues 1124 0 None None None 2020-09-13 21:04:58 UTC
Red Hat Product Errata RHBA-2014:1385 0 normal SHIPPED_LIVE 389-ds-base bug fix and enhancement update 2014-10-14 01:27:42 UTC

Description Noriko Hosoi 2014-06-13 17:13:59 UTC 
This bug is created as a clone of upstream ticket:
https://fedorahosted.org/389/ticket/47793

Attempting to add a uniqueMember to a group of type groupOfUniqueNames crashes the server if syntax checking is off.

Steps to recreate:
1. Enable memberofplugin with memberofgroupattr=uniqueMember and memberofattr=memberOf.  (Requires server restart)
2. Disable syntax checking: in cn=cn=config, attribute nsslapd-syntaxcheck=off
3. In any groupOfUniqueName group, add an invalid uniqueMember such as cn=test,null,dc=will,dc=crash
Comment 1 Noriko Hosoi 2014-06-17 01:00:40 UTC 
Steps to verify:
Description in https://fedorahosted.org/389/ticket/47793
Comment 3 Viktor Ashirov 2014-07-10 16:47:54 UTC 
$ rpm -qa | grep 389
389-ds-base-1.2.11.15-38.el6.x86_64
389-ds-base-libs-1.2.11.15-38.el6.x86_64

$ ldapmodify -D 'cn=Directory Manager' -w Secret123  -H ldap://localhost:389  << EOF
> dn: cn=config
> changetype: modify
> replace: nsslapd-syntaxcheck
> nsslapd-syntaxcheck: off
> -
> 
> dn: cn=MemberOf Plugin,cn=plugins,cn=config
> changetype: modify
> replace: memberofgroupattr
> memberofgroupattr: member
> memberofgroupattr: uniqueMember
> -
> replace: nsslapd-pluginEnabled
> nsslapd-pluginEnabled: on
> -
> EOF
modifying entry "cn=config"

modifying entry "cn=MemberOf Plugin,cn=plugins,cn=config"

$ ldapadd -D 'cn=Directory Manager' -w Secret123  -H ldap://localhost:389  << EOF
> dn: cn=memberofgroup,ou=Groups,dc=example,dc=com
> objectClass: groupofuniquenames
> objectClass: top
> cn: memberofgroup
> EOF
adding new entry "cn=memberofgroup,ou=Groups,dc=example,dc=com"

$ ldapmodify -D 'cn=Directory Manager' -w Secret123  -H ldap://localhost:389  << EOF
> dn: cn=memberofgroup,ou=Groups,dc=example,dc=com
> changetype: modify
> add: uniqueMember
> uniqueMember: cn=test,null,dc=will,dc=crash
> -
> EOF
modifying entry "cn=memberofgroup,ou=Groups,dc=example,dc=com"

$ pgrep ns-slapd
5781
Server keeps running. On affected version of 389-ds-base ns-slapd would crash. 
Hence marking as verified.
Comment 4 errata-xmlrpc 2014-10-14 07:55:17 UTC 
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.

http://rhn.redhat.com/errata/RHBA-2014-1385.html
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