Cyber Resilience

CVE-2023-2194

Memory Safety in Linux Kernel ≤ 6.3

Published
20 April 2023
Modified
23 April 2025
Patch / advisory
CVSS Score v3.1 6.7
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0024 16th percentile
Risk Priority 45 floored blend · peak EPSS

Summary

CVE-2023-2194 is a medium-severity Out-of-bounds Write (CWE-787) vulnerability in Linux Linux Kernel. Its CVSS base score is 6.7 (Medium).

Operationally, ranked at the 16th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

An out-of-bounds write vulnerability was found in the Linux kernel's SLIMpro I2C device driver. The userspace "data->block[0]" variable was not capped to a number between 0-255 and was used as the size of a memcpy, possibly writing beyond the end…

more

of dma_buffer. This flaw could allow a local privileged user to crash the system or potentially achieve code execution.

CWE(s)

Related Threats

CVEs Like This One

CVE-2023-1073Same product: Fedoraproject Fedora
CVE-2024-35949Same product: Fedoraproject Fedora
CVE-2024-0646Same product: Linux Linux Kernel
CVE-2024-1151Same product: Fedoraproject Fedora
CVE-2023-3812Same product: Linux Linux Kernel
CVE-2024-26988Same product: Fedoraproject Fedora
CVE-2023-42753Same product: Linux Linux Kernel
CVE-2023-43785Same product: Fedoraproject Fedora
CVE-2023-1729Same product: Fedoraproject Fedora
CVE-2023-6693Same product: Fedoraproject Fedora

Affected Assets

linux
linux kernel
6.3 · ≤ 6.3
fedoraproject
fedora
38
redhat
enterprise linux
8.0, 9.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

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-development practices (static analysis, bounds checking, code review) are the primary means of preventing out-of-bounds writes.

ID.RA-01 partial match
prevents

Vulnerability scanning and recording can discover out-of-bounds write flaws so they can be remediated.

PR.PS-02 partial match
prevents

Patching or replacing vulnerable software directly eliminates known instances of this coding weakness.

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.

detects

Security testing in development and acceptance can detect and prevent out-of-bounds write defects.

prevents

Secure development life cycle mandates practices that prevent out-of-bounds writes.

prevents

Application security requirements can specify bounds-checking and safe memory handling.

prevents

Secure architecture and engineering principles reduce the likelihood of buffer overflows.

prevents

Secure coding directly addresses out-of-bounds writes through language choice and coding standards.

prevents

Change management can enforce review gates that catch unsafe memory operations before deployment.

References