Use-After-Free Affecting qemu-project/qemu package, versions [,6.2.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-UNMANAGED-QEMUPROJECTQEMU-3006874
  • published17 Mar 2022
  • disclosed17 Mar 2022
  • creditAlexander Bulekov

Introduced: 17 Mar 2022

CVE-2021-3748  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade qemu-project/qemu to version 6.2.0 or higher.

Overview

Affected versions of this package are vulnerable to Use-After-Free. It could occur when the descriptor's address belongs to the non direct access region, due to num_buffers being set after the virtqueue elem has been unmapped.

References

CVSS Scores

version 3.1