PT-2025-38185 · Linux+5 · Linux Kernel+5

Published 2023-02-02 · Updated 2026-03-14 · CVE-2023-53335

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The Linux kernel contains a flaw in the RDMA/cxgb4 component where a null pointer dereference could occur in the pass establish() function. This happens if get ep from tid() fails to locate a non-NULL value for ep, leading to a dereference of ep even when it is empty. A sanity check has been added to address this issue.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALSA-2025_16880

BDU:2026-03636

CESA-2024_3138

CVE-2023-53335

RHSA-2024:2394

RHSA-2024:3138

RHSA-2024_2394

RHSA-2024_3138

SUSE-SU-2025:03614-1

SUSE-SU-2025:03615-1

SUSE-SU-2025:03628-1

SUSE-SU-2025:3716-1

SUSE-SU-2025:3761-1

Affected Products

Astra Linux

Centos

Debian

Linux Kernel

Red Hat

Suse

References · 991

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53335.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-53335 · Security Note
• https://osv.dev/vulnerability/CVE-2023-53335 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53335 · Security Note
• https://bdu.fstec.ru/vul/2026-03636 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:03615-1 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53335 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53335 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53335 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-53335 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:03614-1 · Vendor Advisory
• https://git.kernel.org/stable/c/9ddc77eefb2a567b705c3c86ab2ddabe43cadf1b · Patch
• https://git.kernel.org/stable/c/2cfc00e974d75a3aa8155f2660f57d342e1f67ca · Patch
• https://git.kernel.org/stable/c/9dca64042d855a24b0bd81ce242e5dc7e939f6eb · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:03628-1 · Vendor Advisory