Loop with Unreachable Exit Condition ('Infinite Loop') Affecting qemu-kvm-device-display-virtio-gpu package, versions <17:8.2.0-11.el9_4


Severity

Recommended
0.0
medium
0
10

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    0.16% (54th percentile)

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  • Snyk ID SNYK-ALMALINUX9-QEMUKVMDEVICEDISPLAYVIRTIOGPU-6811299
  • published 7 May 2024
  • disclosed 30 Apr 2024

How to fix?

Upgrade AlmaLinux:9 qemu-kvm-device-display-virtio-gpu to version 17:8.2.0-11.el9_4 or higher.
This issue was patched in ALSA-2024:2135.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-kvm-device-display-virtio-gpu package and not the qemu-kvm-device-display-virtio-gpu package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 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
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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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SUSE

4.9 medium
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Red Hat

6.5 medium