Improper Access Control Affecting qemu-img package, versions <15:2.12.0-64.module+el8.0.0.z+3418+a72cf898.2


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.06% (27th percentile)

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  • Snyk ID SNYK-CENTOS8-QEMUIMG-1985456
  • published 26 Jul 2021
  • disclosed 20 Jun 2019

How to fix?

Upgrade Centos:8 qemu-img to version 15:2.12.0-64.module+el8.0.0.z+3418+a72cf898.2 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.

The virConnectGetDomainCapabilities() libvirt API, versions 4.x.x before 4.10.1 and 5.x.x before 5.4.1, accepts an "emulatorbin" argument to specify the program providing emulation for a domain. Since v1.2.19, libvirt will execute that program to probe the domain's capabilities. Read-only clients could specify an arbitrary path for this argument, causing libvirtd to execute a crafted executable with its own privileges.

CVSS Scores

version 3.1
Expand this section

NVD

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