NULL Pointer Dereference Affecting qemu-project/qemu package, versions [,6.1.0)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-UNMANAGED-QEMUPROJECTQEMU-3006957
  • published26 Jan 2022
  • disclosed2 Jun 2021
  • creditUnknown

Introduced: 2 Jun 2021

CVE-2020-35503  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade qemu-project/qemu to version 6.1.0 or higher.

Overview

Affected versions of this package are vulnerable to NULL Pointer Dereference. A NULL pointer dereference flaw was found in the megasas-gen2 SCSI host bus adapter emulation of QEMU in versions before and including 6.0. This issue occurs in the megasas_command_cancelled() callback function while dropping a SCSI request. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

CVSS Scores

version 3.1