Integer Underflow Affecting libguestfs-rsync package, versions <1:1.44.0-5.0.1.module+el8.7.0+20916+50473d5a


Severity

Recommended
high

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.17% (55th percentile)

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  • Snyk ID SNYK-ORACLE8-LIBGUESTFSRSYNC-3316758
  • published 24 Jan 2023
  • disclosed 17 Oct 2022

How to fix?

Upgrade Oracle:8 libguestfs-rsync to version 1:1.44.0-5.0.1.module+el8.7.0+20916+50473d5a or higher.
This issue was patched in ELSA-2023-12195.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libguestfs-rsync package and not the libguestfs-rsync package as distributed by Oracle. See How to fix? for Oracle: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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SUSE

6.5 medium
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Red Hat

6.5 medium