---
cve: "CVE-2023-52887"
severity: "HIGH"
cvss: 7.5
epss: "67%"
vendor: "Linux"
kev: false
exploited: false
published: "2024-07-29 16:15:03"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T08:42:53+02:00"
---

# CVE-2023-52887

> 7.5 HIGH

## Beschreibung

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

net: can: j1939: enhanced error handling for tightly received RTS messages in xtp_rx_rts_session_new

This patch enhances error handling in scenarios with RTS (Request to
Send) messages arriving closely. It replaces the less informative WARN_ON_ONCE
backtraces with a new error handling method. This provides clearer error
messages and allows for the early termination of problematic sessions.
Previously, sessions were only released at the end of j1939_xtp_rx_rts().

Potentially this could be reproduced with something like:
testj1939 -r vcan0:0x80 &
while true; do
	# send first RTS
	cansend vcan0 18EC8090#1014000303002301;
	# send second RTS
	cansend vcan0 18EC8090#1014000303002301;
	# send abort
	cansend vcan0 18EC8090#ff00000000002301;
done

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- Kernel ≥ 5.4.279
- Kernel ≥ 5.10.221
- Kernel ≥ 5.15.162
- Kernel ≥ 6.1.97
- Kernel ≥ 6.6.37
- Kernel ≥ 6.9.8

## Referenzen

- <https://git.kernel.org/stable/c/ed581989d7ea9df6f8646beba2341e32cd49a1f9>
- <https://git.kernel.org/stable/c/f6c839e717901dbd6b1c1ca807b6210222eb70f6>
- <https://git.kernel.org/stable/c/1762ca80c2b72dd1b5821c5e347713ae696276ea>
- <https://git.kernel.org/stable/c/26b18dd30e63d4fd777be429148e8e4ed66f60b2>
- <https://git.kernel.org/stable/c/177e33b655d35d72866b50aec84307119dc5f3d4>
- <https://git.kernel.org/stable/c/0bc0a7416ea73f79f915c9a05ac0858dff65cfed>
- <https://git.kernel.org/stable/c/d3e2904f71ea0fe7eaff1d68a2b0363c888ea0fb>
- <https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-52887) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_