NULL Pointer Dereference Affecting qemu package, versions <5.1.0-r1


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
0.46% (37th percentile)

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  • Snyk IDSNYK-ALPINE322-QEMU-10282926
  • published31 May 2025
  • disclosed2 Oct 2020

Introduced: 2 Oct 2020

CVE-2020-25741  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Alpine:3.22 qemu to version 5.1.0-r1 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 Alpine. See How to fix? for Alpine:3.22 relevant fixed versions and status.

fdctrl_write_data in hw/block/fdc.c in QEMU 5.0.0 has a NULL pointer dereference via a NULL block pointer for the current drive.

CVSS Base Scores

version 3.1