Improper Synchronization Affecting ocaml-libnbd-devel package, versions <0:1.6.0-5.module+el8.9.0+90052+d3bf71d8


Severity

Recommended
medium

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-ORACLE8-OCAMLLIBNBDDEVEL-7162839
  • published 30 May 2024
  • disclosed 3 Nov 2023

How to fix?

Upgrade Oracle:8 ocaml-libnbd-devel to version 0:1.6.0-5.module+el8.9.0+90052+d3bf71d8 or higher.
This issue was patched in ELSA-2024-2962.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ocaml-libnbd-devel package and not the ocaml-libnbd-devel package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

A bug in QEMU could cause a guest I/O operation otherwise addressed to an arbitrary disk offset to be targeted to offset 0 instead (potentially overwriting the VM's boot code). This could be used, for example, by L2 guests with a virtual disk (vdiskL2) stored on a virtual disk of an L1 (vdiskL1) hypervisor to read and/or write data to LBA 0 of vdiskL1, potentially gaining control of L1 at its next reboot.

CVSS Scores

version 3.1
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NVD

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

6.4 medium