Out-of-Bounds Affecting qemu-kvm-block-iscsi package, versions <15:4.2.1-18.module+el8.6.0+20690+93de6acb


Severity

Recommended
high

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.07% (30th percentile)

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  • Snyk ID SNYK-ORACLE8-QEMUKVMBLOCKISCSI-2976816
  • published 2 Aug 2022
  • disclosed 6 May 2021

How to fix?

Upgrade Oracle:8 qemu-kvm-block-iscsi to version 15:4.2.1-18.module+el8.6.0+20690+93de6acb or higher.
This issue was patched in ELSA-2022-9700.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-kvm-block-iscsi package and not the qemu-kvm-block-iscsi package as distributed by Oracle. See How to fix? for Oracle:8 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