Out-of-bounds Read Affecting qemu package, versions <1:7.2+dfsg-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-DEBIAN13-QEMU-5693568
  • published26 Nov 2022
  • disclosed29 Nov 2022

Introduced: 26 Nov 2022

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

How to fix?

Upgrade Debian:13 qemu to version 1:7.2+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

An out-of-bounds read flaw was found in the QXL display device emulation in QEMU. 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