Handlers for *_CFG_PAGE read / write ioctls in the mpr, mps, and mpt drivers allocated a buffer of a caller-specified size, but copied to it a fixed size header. Other heap content would be overwritten if the specified size was too small. Users with access to the mpr, mps or mpt device node may overwrite heap data, potentially resulting in privilege escalation. Note that the device node is only accessible to root and members of the operator group.
The product writes data past the end, or before the beginning, of the intended buffer.
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
| Link | Tags |
|---|---|
| https://security.freebsd.org/advisories/FreeBSD-SA-22:06.ioctl.asc | vendor advisory |
| https://security.netapp.com/advisory/ntap-20240419-0002/ | third party advisory |