Cyber Resilience

CVE-2023-5088

Redhat Enterprise Linux 8.0 … 9.0

Published
03 November 2023
Modified
03 November 2025
Patch / advisory
View advisory
CVSS Score v3.1 6.4
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0023 14th percentile
Risk Priority 46 floored blend · peak EPSS

Summary

CVE-2023-5088 is a medium-severity Incorrect Synchronization (CWE-821) vulnerability in Redhat Enterprise Linux. Its CVSS base score is 6.4 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 14th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

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…

more

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.

CWE(s)
CWE-821CWE-662

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
T1548 Abuse Elevation Control Mechanism Privilege Escalation
Adversaries may circumvent mechanisms designed to control privilege elevation to gain higher-level permissions.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-3301Same product: Qemu Qemu
CVE-2024-8354Same product: Qemu Qemu
CVE-2024-3567Same product: Qemu Qemu
CVE-2023-6683Same product: Qemu Qemu
CVE-2023-2680Same product: Qemu Qemu
CVE-2023-3019Same product: Qemu Qemu
CVE-2024-6505Same product: Qemu Qemu
CVE-2023-3255Same product: Qemu Qemu
CVE-2023-6693Same product: Qemu Qemu
CVE-2023-3354Same product: Qemu Qemu

Affected Assets

qemu
qemu
≤ 8.2.0
redhat
enterprise linux
8.0, 9.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V15.4.1
  • V6.5.1
  • V15.1.3
  • V15.4.2

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require correct concurrency controls and synchronization primitives to prevent race conditions.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect synchronization flaws before production deployment.

A.8.25 Secure development life cycle partial match
prevents

Secure SDLC practices include concurrency and synchronization requirements that reduce race conditions.

A.8.26 Application security requirements partial match
prevents

Application security requirements can mandate proper locking and thread-safety controls.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles address concurrent access and resource synchronization.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly require correct synchronization primitives and thread-safety.

A.8.32 Change management none match
none

Change management processes can introduce or miss synchronization fixes during updates.

References