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CVE-2023-53265

7.1 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ubi: ensure that VID header offset + VID header size <= alloc, size Ensure that the VID header offset + VID header size does no…

Published Sep 16, 2025CWE-125EPSS 0.16%

Overview

CVE-2023-53265 is a high-severity vulnerability. It was published on September 16, 2025 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

ubi: ensure that VID header offset + VID header size <= alloc, size

Ensure that the VID header offset + VID header size does not exceed

the allocated area to avoid slab OOB.

BUG: KASAN: slab-out-of-bounds in crc32_body lib/crc32.c:111 [inline]

BUG: KASAN: slab-out-of-bounds in crc32_le_generic lib/crc32.c:179 [inline]

BUG: KASAN: slab-out-of-bounds in crc32_le_base+0x58c/0x626 lib/crc32.c:197

Read of size 4 at addr ffff88802bb36f00 by task syz-executor136/1555

CPU: 2 PID: 1555 Comm: syz-executor136 Tainted: G W

6.0.0-1868 #1

Hardware name: Red Hat KVM, BIOS 1.13.0-2.module+el8.3.0+7860+a7792d29

04/01/2014

Call Trace:

<TASK>

__dump_stack lib/dump_stack.c:88 [inline]

dump_stack_lvl+0x85/0xad lib/dump_stack.c:106

print_address_description mm/kasan/report.c:317 [inline]

print_report.cold.13+0xb6/0x6bb mm/kasan/report.c:433

kasan_report+0xa7/0x11b mm/kasan/report.c:495

crc32_body lib/crc32.c:111 [in

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/1b42b1a36fc946f0d7088425b90d491b4257ca3eRefgit.kernel.org/stable/c/61aeba0e4b4124cfe3c5427feaf29c626dfa89e5Refgit.kernel.org/stable/c/61e04db3bec87f7dd10074296deb7d083e2ccadeRefgit.kernel.org/stable/c/701bb3ed5a88a73ebbe1266895bdeff065226dcaRefgit.kernel.org/stable/c/771e207a839a29ba943e89f473b0fecd16089e2eRefgit.kernel.org/stable/c/846bfba34175c23b13cc2023c2d67b96e8c14c43Refgit.kernel.org/stable/c/e1b73fe4f4c6bb80755eb4bf4b867a8fd8b1a7feRefgit.kernel.org/stable/c/f7adb740f97b6fa84e658892dcb08e37a31a4e77

How CyberStrike helps

Frequently asked questions

What is CVE-2023-53265?

CVE-2023-53265 is a high-severity vulnerability. It was published on September 16, 2025 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2023-53265?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-53265?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-53265?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53265 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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