Skip to main content

Improper Input Validation

CVE-2016-9379

High
7.9/10

Summary

The pygrub boot loader emulator in Xen, when S-expression output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via string quotes and S-expressions in the bootloader configuration file.

  • LOW
  • LOCAL
  • HIGH
  • CHANGED
  • NONE
  • HIGH
  • HIGH
  • NONE

CWE-20 - Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

References

Advisory Timeline

  • Published