Buffer overflow in the BrSmRcvAndCheck function in the RCHMGR module on IBM OS/400 V5R4M0, V5R4M5, and V6R1M0 allows local users to cause a denial of service (task halt and main storage dump) via unspecified vectors involving the running of diagnostics on a modem port. NOTE: there might be limited attack scenarios.
| Software | From | Fixed in |
|---|---|---|
| ibm / os_400 | 6r1m0 | 6r1m0.x |
| ibm / os_400 | 5r4m5 | 5r4m5.x |
| ibm / os_400 | 5r4m0 | 5r4m0.x |