IBM Corporation Information for VU#192995

Integer overflow in xdr_array() function when deserializing the XDR stream



Vendor Statement

IBM is vulnerable to the above XDR Library issues in both the 4.3 and 5.1 releases of AIX. A temporary patch is currently available through an efix pacakge. Efixes are available from

See the README file in this directory for additional information on the efixes.

The following APARs will be available in the near future:

AIX 4.3.3: APAR #IY34194 ( available approx 10/1/2002 )
AIX 5.1.0: APAR #IY34158 ( available approx 10/16/2002 )

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Vendor References



Previously on 08/06/2002 IBM stated:

IBM has analyzed AIX with regard to the XDR vulnerability and found that the 4.3.3 and 5.1.0 releases are exposed. We are currently working on an efix package for this issue which will be available shortly.

We will update this statement when more information once the efixes are available.

If you have feedback, comments, or additional information about this vulnerability, please send us email.