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Out-of-bounds Write

CVE-2020-17380

Medium
6.3/10

Summary

A heap-based buffer overflow was found in QEMU through 5.0.0 in the SDHCI device emulation support. It could occur while doing a multi block SDMA transfer via the "sdhci_sdma_transfer_multi_blocks()" routine in "hw/sd/sdhci.c". A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition, or potentially execute arbitrary code with privileges of the QEMU process on the host.

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

CWE-787 - Out-of-Bounds Write

Out-of-bounds write vulnerability is a memory access bug that allows software to write data past the end or before the beginning of the intended buffer. This may result in the corruption of data, a crash, or arbitrary code execution.

References

Advisory Timeline

  • Published