CVE-2023-3268

High

An out of bounds (OOB) memory access flaw was found in the Linux kernel in relay_file_read_start_pos in kernel/relay.c in the relayfs. This flaw could allow a local attacker to crash the system or leak kernel internal information.

Package Linux Kernel
Published 2023-06-16
Last modified 2026-09-01
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

7.1

out of 10
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Weakness type

CWE-125

CVE-2023-3268 is a Out-of-bounds Read vulnerability

What is Out-of-bounds Read?

The product reads data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

Affected versions

Linux kernel versions 2.6.22, 4.20, 5.5, 5.11, 5.16, 6.2, 6.3 and later are affected. Fixed in 4.19.283, 5.4.243, 5.10.180, 5.15.111, 6.1.28, 6.2.15, 6.3.2 and their respective stable series.

Affected from
≥ 2.6.22 ≥ 4.20 ≥ 5.5 ≥ 5.11 ≥ 5.16 ≥ 6.2 ≥ 6.3
Fixed in
✓ 4.19.283 4.19.x ✓ 5.4.243 5.4.x ✓ 5.10.180 5.10.x ✓ 5.15.111 5.15.x ✓ 6.1.28 6.1.x ✓ 6.2.15 6.2.x ✓ 6.3.2 6.3.x

References

8 total
Showing 5 of 8 references View all on NVD

Frequently asked questions

  • What is CVE-2023-3268?

    CVE-2023-3268 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . It affects Linux kernel versions from 2.6.22 onward and has been patched in 4.19.283, 5.4.243, 5.10.180 and others. CVE-2023-3268 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2023-3268?

    CVE-2023-3268 has a CVSS score of 7.1 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H .

  • Is there a patch available for CVE-2023-3268?

    Yes. CVE-2023-3268 has been patched. Fixed versions include 4.19.283, 5.4.243, 5.10.180 and others. If you are running Linux kernel 2.6.22 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2023-3268 actively exploited?

    No. CVE-2023-3268 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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