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CVE-2021-42252

Medium
4.6/10

Summary

An issue was discovered in aspeed_lpc_ctrl_mmap in drivers/soc/aspeed/aspeed-lpc-ctrl.c in the Linux kernel before 5.14.6. Local attackers able to access the Aspeed LPC control interface could overwrite memory in the kernel and potentially execute privileges, aka CID-b49a0e69a7b1. This occurs because a certain comparison uses values that are not memory sizes.

  • LOW
  • LOCAL
  • NONE
  • PARTIAL
  • PARTIAL
  • PARTIAL

References

Advisory Timeline

  • Published