IT21458: SECURITY: DB2 CAN BE USED TO OVERWRITE ARBITRARY FILES OWNED BY DB2 INSTANCE

Db2 Version 11.1 Mod2 Fix Pack2 iFix001 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod2 Fix Pack2 iFix002 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 3 Fix Pack 3 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod3 Fix Pack3 iFix001 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod3 Fix Pack3 iFix002 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod4 Fix Pack4 iFix001 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 4 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 6 for Linux, UNIX, and Windows

APAR status

• Closed as program error.

Error description

• A local unprivileged user can overwrite arbitrary files owned by
  the DB2 instance by exploiting Db2. See Security Bulletin for
  details:
  http://www-01.ibm.com/support/docview.wss?uid=swg22006109
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All DB2 systems on all Linux, Unix and Windows platforms at  *
  * service levels Version 11.1 GA  through to Version 11.1 Fix  *
  * Pack 2.                                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Upgrade to DB2 Version 11.1.2.2 iFix001.                     *
  ****************************************************************
  

Problem conclusion

• The complete fix for this problem first appears in DB2 Version
  11.1.2.2 iFix001 and all the subsequent Fix Packs.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  IT21463 IT21464 IT21465

Fix information

• Fixed component name

  DB2 FOR LUW

• Fixed component ID

  DB2FORLUW

Applicable component levels

• RB10 PSN

     UP