32-bit Client ldapsearch Fails With *** Glibc Detected *** Ldapsearch: Double Free Or Corruption (!prev): (Doc ID 2277019.1)

Last updated on MARCH 05, 2019

Applies to:

Symptoms

The ldapsearch utility delivered as part of an Oracle DB client 32 bit 11gR2 installation on Linux fails with certain filters:

$ echo $LD_LIBRARY_PATH
/opt/brm/ThirdParty/ctq/lib:/opt/brm/ThirdParty/ctq/bin/odbc:/opt/brm/ThirdParty/ctq/bin/odbc/lib:/opt/brm/7.4/pin441/rel/lib:/opt/oracle/apps/product/11.2.0/client_32/lib32:/opt/oracle/apps/product/11.2.0/client_32/lib:/usr/local/lib/hpux32

$ ldapsearch -h <HOSTNAME> -p <PORT> -D <USER> -w <PASSWORD>-b "dc=company,dc=com" "&(memberOf=CN=Somegroup,OU=SomeOU,OU=Groups,OU=Container,DC=company,DC=com)(givenName=t*)"

*** glibc detected *** ldapsearch: double free or corruption (!prev): 0x080da660 ***
======= Backtrace: =========
/lib/libc.so.6(+0x691c91)[0x5460c91]
/lib/libc.so.6(+0x6946f1)[0x54636f1]
ldapsearch(gslumfFree+0x44)[0x80a354c]
ldapsearch(gslcseb_BuildSearchReq+0xca)[0x8075c5c]
ldapsearch(gslcsex_LdapSearchExt+0xeb)[0x8075e49]
ldapsearch(ora_ldap_search_ext+0x78)[0x805f356]
ldapsearch(ldap_search_ext+0x50)[0x8062536]
ldapsearch[0x805d10a]
ldapsearch[0x805b1b1]
/lib/libc.so.6(__libc_start_main+0xe6)[0x5406d26]
ldapsearch[0x8055131]
======= Memory map: ========
001a5000-003c8000 r-xp 00000000 fd:05 2997777                            /opt/oracle/apps/product/11.2.0/client_32/lib/libnnz11.so
003c8000-003f7000 rw-p 00222000 fd:05 2997777                            /opt/oracle/apps/product/11.2.0/client_32/lib/libnnz11.so
003f7000-003f8000 rw-p 00000000 00:00 0
003f8000-003fb000 r-xp 00000000 fd:00 266001                             /lib/libdl-2.12.so
003fb000-003fc000 r--p 00002000 fd:00 266001                             /lib/libdl-2.12.so
003fc000-003fd000 rw-p 00003000 fd:00 266001                             /lib/libdl-2.12.so
003fd000-00425000 r-xp 00000000 fd:00 266009                             /lib/libm-2.12.so
00425000-00426000 r--p 00027000 fd:00 266009                          

If setting the malloc variable as per:  Bulkload Fails With Error "*** Glibc Detected *** Bulkload: Corrupted Double-linked List" (Doc ID 2229466.1) then the search returns data but still errors with:

$ ldapsearch -h <HOSTNAME> -p <PORT> -D <USER> -w <PASSWORD> -b "dc=company,dc=com" "&(memberOf=CN=somegroup,OU=someOU,OU=Groups,OU=Container,DC=company,DC=com)(givenName=t*)"

*** glibc detected *** ldapsearch: free(): invalid pointer: 0x080daa70 *** <<<<<<
CN=tttester11,OU=OU1,OU=Privileged Accounts,OU=Accounts,dc=company,dc=com
objectClass=top
objectClass=person
objectClass=organizationalPerson
objectClass=user
cn=tttester11
......

The search works if an additional letter is added to the last filter, ie givenname=tt* instead of just givenname=t*, eg:

Works:
$ ldapsearch -h <HOSTNAME> -p <PORT> -D <USER> -w <PASSWORD> -b "dc=company,dc=com" "&(memberOf=CN=somegroup,OU=someOU,OU=Groups,OU=Container,DC=company,DC=com)(givenName=tt*)"

Fails:
$ldapsearch -h <HOSTNAME> -p <PORT> -D <USER> -w <PASSWORD> -b "dc=company,dc=com" "&(memberOf=CN=somegroup,OU=someOU,OU=Groups,OU=Container,DC=company,DC=com)(givenName=t*)"

Relinking the 32bit client was tried as follows, but it did not help:
cd /opt/oracle/apps/product/11.2.0/client_32/bin - DONE
relink all

RPMs already checked as per: Requirements for Installing Oracle 11gR2 RDBMS on RHEL6 or OL6 64-bit (x86-64) (Doc ID 1441282.1)

Installing 11.2.0.4 32-bit client from: https://updates.oracle.com/download/13390677.html (file p13390677_112040__4of7.zip) did not help either.

NOTE: This behavior was detected with the filter and conditions described above but it is not known if the issue can also be reproduced under different circumstances.

Cause

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