Out-of-bounds Read Affecting qemu-project/qemu package, versions [,7.2.0-rc3)


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-3149908
  • published27 Nov 2022
  • disclosed25 Nov 2022
  • creditUnknown

Introduced: 25 Nov 2022

CVE-2022-4144  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade qemu-project/qemu to version 7.2.0-rc3 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Read in the QXL display device emulation. The qxl_phys2virt() function does not check the size of the structure pointed to by the guest physical address, potentially reading past the end of the bar space into adjacent pages. A malicious guest user could use this flaw to crash the QEMU process on the host causing a denial of service condition.

CVSS Scores

version 3.1