Kernel Buffer Overflow Vulnerability in Qualcomm Android and Firefox OS

CVE-2017-15855 · MEDIUM Severity

AV:L/AC:L/AU:N/C:P/I:P/A:P

In Qualcomm Android for MSM, Firefox OS for MSM, and QRD Android with all Android releases from CAF using the Linux kernel before security patch level 2018-04-05, the camera application triggers "user-memory-access" issue as the Camera CPP module Linux driver directly accesses the application provided buffer, which resides in user space. An unchecked userspace value (ioctl_ptr->len) is used to copy contents to a kernel buffer which can lead to kernel buffer overflow.

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