Use After Free Affecting qemu-project/qemu package, versions [,6.0.0)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-UNMANAGED-QEMUPROJECTQEMU-3007179
  • published26 Jan 2022
  • disclosed28 May 2021
  • creditUnknown

Introduced: 28 May 2021

CVE-2020-35506  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade qemu-project/qemu to version 6.0.0 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free. A use-after-free vulnerability was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0 during the handling of the 'Information Transfer' command (CMD_TI). This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service or potential code execution with the privileges of the QEMU process.

CVSS Scores

version 3.1