Medium CVSS 6.0

Overview

A heap-based buffer overflow was found in the SDHCI device emulation of QEMU. The bug is triggered when both `s->data_count` and the size of `s->fifo_buffer` are set to 0x200, leading to an out-of-bound access. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.

Risk analysis

This vulnerability is rated 🟡 MEDIUM.

  • CVSS: 6.0 (MEDIUM)
  • Detected tags: buffer, dos (tag impact: LOW)

Recommended actions:

  • Rate limiting, resource quotas and circuit breakers.

Recommended tools

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