PT-2025-43121 · Mlx5 Core+2 · Mlx5 Core+2

Publicado 2023-04-20 · Atualizado 2025-10-23 · CVE-2023-53720

Positive Technologies (AI Summary)

CVSS v2.0

6.0

Média

Vetor base

AV:L/AC:H/Au:S/C:C/I:C/A:C

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

Description The Linux kernel contains an issue in the net/mlx5e component where the label mapping is not correctly released when replacing an existing connection tracking (ct) entry. This leads to a memory leak. The backtrace indicates the issue occurs during the processing of network flows, specifically within the mlx5 tc ct entry create mod hdr and mlx5 tc ct block flow offload functions. The mapping add function within the mlx5 core module is also implicated in the memory leak.

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

Exploit

Memory Leak

Enumeração de Fraquezas

CWE-401

Identificadores relacionados

BDU:2026-03887

CVE-2023-53720

Produtos afetados

Linux Kernel

Mlx5 Core

Mlx5E

Referências · 15

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53720.json · Exploit
• https://git.kernel.org/stable/c/8ac04a28144cfa89b61be518268233742c23d88d · Nota
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53720 · Aviso do Fabricante
• https://git.kernel.org/stable/c/3db903a71f1f4bbf30baae166a4a49f2e8aceb61 · Nota
• https://git.kernel.org/linus/8ac04a28144cfa89b61be518268233742c23d88d · Nota
• https://docs.bell-sw.com/security/cves/CVE-2023-53720 · Nota
• https://osv.dev/vulnerability/BELL-CVE-2023-53720 · Aviso do Fabricante
• https://ubuntu.com/security/CVE-2023-53720 · Aviso do Fabricante
• https://bdu.fstec.ru/vul/2026-03887 · Nota de Segurança
• https://access.redhat.com/security/cve/cve-2023-53720 · Nota
• https://cve.org/CVERecord?id=CVE-2023-53720 · Nota de Segurança
• https://osv.dev/vulnerability/CVE-2023-53720 · Aviso do Fabricante
• https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.2 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2023-53720 · Nota de Segurança
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Nota