CWE-821

Incorrect Synchronization

The product utilizes a shared resource in a concurrent manner, but it does not correctly synchronize access to the resource.

CVE-2023-5088 (GCVE-0-2023-5088)
Vulnerability from cvelistv5
Published
2023-11-03 13:58
Modified
2025-09-26 06:26
Severity ?
6.4 (Medium) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-821 - Incorrect Synchronization
Summary
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.
References
https://access.redhat.com/errata/RHSA-2024:2135vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2962vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-5088vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2247283issue-tracking, x_refsource_REDHAT
https://lore.kernel.org/all/20230921160712.99521-1-simon.rowe@nutanix.com/T/
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 8 Unaffected: 8100020240314161907.e155f54d   < *
    cpe:/a:redhat:enterprise_linux:8::crb
    cpe:/a:redhat:enterprise_linux:8::appstream
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   Red Hat Red Hat Enterprise Linux 8 Unaffected: 8100020240314161907.e155f54d   < *
    cpe:/a:redhat:enterprise_linux:8::crb
    cpe:/a:redhat:enterprise_linux:8::appstream
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 9 Unaffected: 17:8.2.0-11.el9_4   < *
    cpe:/a:redhat:enterprise_linux:9::appstream
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   Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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   Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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   Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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   Red Hat Red Hat Enterprise Linux 8 Advanced Virtualization     cpe:/a:redhat:advanced_virtualization:8::el8
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No mitigation information available for this CWE.

No CAPEC attack patterns related to this CWE.

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