Array index error in the (1) torisa.c and (2) dahdi/tor2.c drivers in Zaptel (aka DAHDI) 1.4.11 and earlier allows local users in the dialout group to overwrite an integer value in kernel memory by writing to /dev/zap/ctl, related to missing validation of the sync field associated with the ZT_SPANCONFIG ioctl.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Zaptel | Asterisk | * | 1.4.11 (including) |
| Zaptel | Asterisk | 1.2 (including) | 1.2 (including) |
| Zaptel | Asterisk | 1.2.27 (including) | 1.2.27 (including) |
| Zaptel | Asterisk | 1.4 (including) | 1.4 (including) |