net: ip/tcp: Null pointer dereference can be triggered by a race condition (zephyrproject-rtos Zephyr)
En bref
- Source
- NVD
- EPSS
- EPSS 0.20 % · centile 10 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- zephyr
- Statut NVD
- Analyzed
Description
A race condition during TCP connection teardown can cause tcp_recv() to operate on a connection that has already been released. If tcp_conn_search() returns NULL while processing a SYN packet, a NULL pointer derived from stale context data is passed to tcp_backlog_is_full() and dereferenced without validation, leading to a crash.
Faiblesses (CWE)
- CWE-476 — Déréférencement de pointeur nul
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.4 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H | zephyr |
| CVSS 3.1 | MEDIUM 6.4 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H | NVD · vulnerabilities@zephyrproject.org (Secondary) |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2026-19028
- GCVE · GCVE-0-2026-5590
Configurations affectées (CPE NVD)
cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*≤ 4.3.0
Produits affectés
| Produit | Versions |
|---|---|
| zephyrproject-rtos · Zephyr | affected * < 4.3.1 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |