Out-of-Bounds Affecting qemu package, versions *


Severity

Recommended
low

Based on Ubuntu security rating

    Threat Intelligence

    EPSS
    0.07% (30th percentile)

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  • Snyk ID SNYK-UBUNTU1404-QEMU-1293033
  • published 14 May 2021
  • disclosed 6 May 2021

How to fix?

There is no fixed version for Ubuntu:14.04 qemu.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Ubuntu. See How to fix? for Ubuntu:14.04 relevant fixed versions and status.

A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory.

CVSS Scores

version 3.1
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NVD

6.1 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    None
  • Availability (A)
    Low
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SUSE

4.4 medium
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Red Hat

4.6 medium