IBM Informix Dynamic Server ontape binary buffer overflow

informix-ontape-binary-bo (14970) The risk level is classified as HighHigh Risk


Informix Dynamic Server (IDS) is vulnerable to a buffer overflow, caused by a insufficient bounds checking in the "ONCONFIG" environment variable in the ontape binary. By supplying a long string to the environment variable, a local attacker can overflow a buffer and execute arbitrary code on the system with root privileges.


Gain Privileges


Contact Customer Services for an upgrade to IBM Informix Dynamic Server 9.40.UC3. See References.


  • Informix Web page: Security issues in IBM Informix Dynamic Server and IBM Informix Extended Parallel Server (XPS).
  • VulnWatch Mailing List, Fri Mar 14 2003 - 00:18:51 CST: SRT2004-01-18-0747 - IBM Informix IDS 9.4 contains multiple vulnerabilities.
  • BID-9511: IBM Informix Multiple Local Privilege Escalation Vulnerabilities
  • BID-9512: IBM Informix Dynamic Server/Informix Extended Parallel Server Multiple Vulnerabilities
  • CVE-2004-2131: Stack-based buffer overflow in ontape for IBM Informix Dynamic Server (IDS) 9.40.xC3 and earlier allows local users, with DSA privileges, to execute arbitrary code via a long ONCONFIG environment variable.
  • OSVDB ID: 3759: IBM Informix Database ontape Overflow
  • SA10737: IBM Informix Database Multiple Local Vulnerabilities

Platforms Affected:

  • IBM Informix Dynamic Server 9.40.UC1
  • IBM Informix Dynamic Server 9.40.UC2
  • IBM Informix Extended Parallel Server 8.40_UC1


Jan 28, 2004

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