Out-of-bounds Write Affecting libguestfs-rsync package, versions <1:1.40.2-25.0.1.module+el8.4.0+20319+6eb4347c


Severity

Recommended
high

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-ORACLE8-LIBGUESTFSRSYNC-2585716
  • published 10 Apr 2022
  • disclosed 8 Dec 2020

How to fix?

Upgrade Oracle:8 libguestfs-rsync to version 1:1.40.2-25.0.1.module+el8.4.0+20319+6eb4347c or higher.
This issue was patched in ELSA-2021-9568.

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.

A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.

CVSS Scores

version 3.1
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NVD

6 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    High
  • User Interaction (UI)
    None
  • Scope (S)
    Changed
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
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SUSE

5.7 medium
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Red Hat

5.7 medium