PT-2025-38451 · Linux+3 · Linux Kernel+3

Published 2023-06-23 · Updated 2026-03-14 · CVE-2023-53432

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description The Linux kernel contains a flaw within the firewire networking subsystem. Specifically, a use-after-free issue exists in the fwnet finish incoming packet() function. The netif rx() function frees the skb (socket buffer) which is then subsequently dereferenced to access its length (skb->len), leading to a potential crash or other undefined behavior.

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

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2025-12984

CVE-2023-53432

OESA-2025-2406

SUSE-SU-2025:03600-1

SUSE-SU-2025:03634-1

SUSE-SU-2025:20851-1

SUSE-SU-2025:20861-1

SUSE-SU-2025:20870-1

SUSE-SU-2025:20898-1

SUSE-SU-2025:3751-1

SUSE-SU-2025:4057-1

SUSE-SU-2025:4132-1

SUSE-SU-2025:4141-1

Affected Products

Astra Linux

Debian

Linux Kernel

Suse

References · 1438

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53432.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-53150 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50249 · Security Note
• https://git.kernel.org/stable/c/2ea70379e4f4efa95c9daa7f3f9bdd4d40aec927 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2025-38724 · Security Note
• https://osv.dev/vulnerability/CVE-2023-53432 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-12984 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53259 · Security Note
• https://git.kernel.org/stable/c/9040adc38cf6bfbb77034d558ac2c52f70d840ac · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:20851-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-39866 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53241 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53215 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:4141-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:20861-1 · Vendor Advisory