Heap-based Buffer Overflow Affecting qemu-img package, versions <15:2.12.0-88.module+el8.1.0+5708+85d8e057.3


Severity

Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.42% (75th percentile)

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  • Snyk ID SNYK-CENTOS8-QEMUIMG-2024088
  • published 26 Jul 2021
  • disclosed 23 Jan 2020

How to fix?

Upgrade Centos:8 qemu-img to version 15:2.12.0-88.module+el8.1.0+5708+85d8e057.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-img package and not the qemu-img package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block driver in QEMU versions 2.12.0 before 4.2.1 handled a response coming from an iSCSI server while checking the status of a Logical Address Block (LBA) in an iscsi_co_block_status() routine. A remote user could use this flaw to crash the QEMU process, resulting in a denial of service or potential execution of arbitrary code with privileges of the QEMU process on the host.

CVSS Scores

version 3.1
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NVD

6 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Changed
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    Low
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Red Hat

6 medium
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SUSE

8.6 high