CVE-2015-9138: Qualcomm FSM9055 Firmware

Critical severity, CVSS 9.8. EPSS: 0.9% chance of exploitation in the next 30 days.

In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Automobile, Snapdragon Mobile, Snapdragon Wear, and Small Cell SoC FSM9055, IPQ4019, MDM9206, MDM9607, MDM9625, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, MSM8909W, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 425, SD 430, SD 450, SD 600, SD 615/16/SD 415, SD 617, SD 625, SD 650/52, SD 800, SD 808, SD 810, SD 820, SD 820A, SD 835, SD 845, SD 850, and SDX20, when an RSA encryption operation is called, the ce_util_to_unsigned_bin is invoked to convert the input buffer to unsigned binary. The ce_util_to_unsigned_bin function, instead of operating on the size of the unsigned character buffer that is passed, operates on the address - i.e. operates on "c" instead of "*c". Decrementing the address to check if it is less than zero means that the operation will always pass, since a pointer will never be less than zero, and may result in a buffer overflow.

Affected products

  • Qualcomm FSM9055 Firmware: affected versions not specified
  • Qualcomm IPQ4019 Firmware: affected versions not specified
  • Qualcomm MDM9206 Firmware: affected versions not specified
  • Qualcomm MDM9607 Firmware: affected versions not specified
  • Qualcomm MDM9625 Firmware: affected versions not specified
  • Qualcomm MDM9635M Firmware: affected versions not specified
  • Qualcomm MDM9640 Firmware: affected versions not specified
  • Qualcomm MDM9645 Firmware: affected versions not specified
  • Qualcomm MDM9650 Firmware: affected versions not specified
  • Qualcomm MDM9655 Firmware: affected versions not specified
  • Qualcomm MSM8909W Firmware: affected versions not specified
  • Qualcomm Sd 205 Firmware: affected versions not specified
  • Qualcomm Sd 210 Firmware: affected versions not specified
  • Qualcomm Sd 212 Firmware: affected versions not specified
  • Qualcomm Sd 400 Firmware: affected versions not specified
  • Qualcomm Sd 410 Firmware: affected versions not specified
  • Qualcomm Sd 412 Firmware: affected versions not specified
  • Qualcomm Sd 415 Firmware: affected versions not specified
  • Qualcomm Sd 425 Firmware: affected versions not specified
  • Qualcomm Sd 430 Firmware: affected versions not specified
  • Qualcomm Sd 450 Firmware: affected versions not specified
  • Qualcomm Sd 600 Firmware: affected versions not specified
  • Qualcomm Sd 615 Firmware: affected versions not specified
  • Qualcomm Sd 616 Firmware: affected versions not specified
  • Qualcomm Sd 617 Firmware: affected versions not specified
  • and 12 more

Published 2018-04-18. Last modified 2026-06-17.