Integer Underflow Affecting qemu-img package, versions <15:6.2.0-32.module+el8.8.0+18361+9f407f6e


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.17% (55th percentile)

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  • Snyk ID SNYK-CENTOS8-QEMUIMG-3033315
  • published 26 Sep 2022
  • disclosed 25 Sep 2022

How to fix?

Upgrade Centos:8 qemu-img to version 15:6.2.0-32.module+el8.8.0+18361+9f407f6e 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 integer underflow issue was found in the QEMU VNC server while processing ClientCutText messages in the extended format. A malicious client could use this flaw to make QEMU unresponsive by sending a specially crafted payload message, resulting in a denial of service.

CVSS Scores

version 3.1
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NVD

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

6.5 medium
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SUSE

6.5 medium