Loop with Unreachable Exit Condition ('Infinite Loop') Affecting qemu-kvm-core package, versions <15:6.2.0-49.module+el8.10.0+21533+3df3c4b6


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.16% (54th percentile)

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  • Snyk IDSNYK-CENTOS8-QEMUKVMCORE-5752890
  • published4 Jul 2023
  • disclosed4 Jul 2023

Introduced: 4 Jul 2023

CVE-2023-3255  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Centos:8 qemu-kvm-core to version 15:6.2.0-49.module+el8.10.0+21533+3df3c4b6 or higher.

NVD Description

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

A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the inflate_buffer function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service.

CVSS Scores

version 3.1