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Esto proporciona mensajes de error m\u00e1s claros y permite la finalizaci\u00f3n anticipada de sesiones problem\u00e1ticas. Anteriormente, las sesiones s\u00f3lo se publicaban al final de j1939_xtp_rx_rts(). Potencialmente, esto podr\u00eda reproducirse con algo como: testj1939 -r vcan0:0x80 & while true; hacer # enviar primero RTS cansend vcan0 18EC8090#1014000303002301; # enviar segundo RTS cansend vcan0 18EC8090#1014000303002301; # enviar cancelar cansend vcan0 18EC8090#ff00000000002301; hecho"}], "id": "CVE-2023-52887", "lastModified": "2025-09-26T14:44:50.723", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}]}, "published": "2024-07-29T16:15:03.150", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0bc0a7416ea73f79f915c9a05ac0858dff65cfed"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1762ca80c2b72dd1b5821c5e347713ae696276ea"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/177e33b655d35d72866b50aec84307119dc5f3d4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/26b18dd30e63d4fd777be429148e8e4ed66f60b2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d3e2904f71ea0fe7eaff1d68a2b0363c888ea0fb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ed581989d7ea9df6f8646beba2341e32cd49a1f9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f6c839e717901dbd6b1c1ca807b6210222eb70f6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0bc0a7416ea73f79f915c9a05ac0858dff65cfed"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1762ca80c2b72dd1b5821c5e347713ae696276ea"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/177e33b655d35d72866b50aec84307119dc5f3d4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/26b18dd30e63d4fd777be429148e8e4ed66f60b2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d3e2904f71ea0fe7eaff1d68a2b0363c888ea0fb"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ed581989d7ea9df6f8646beba2341e32cd49a1f9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f6c839e717901dbd6b1c1ca807b6210222eb70f6"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-617"}], "source": "[email protected]", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net: can: j1939: enhanced error handling for tightly received RTS messages in xtp_rx_rts_session_new", "id": "2300477", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2300477"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-20", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: can: j1939: enhanced error handling for tightly received RTS messages in xtp_rx_rts_session_new\nThis patch enhances error handling in scenarios with RTS (Request to\nSend) messages arriving closely. It replaces the less informative WARN_ON_ONCE\nbacktraces with a new error handling method. This provides clearer error\nmessages and allows for the early termination of problematic sessions.\nPreviously, sessions were only released at the end of j1939_xtp_rx_rts().\nPotentially this could be reproduced with something like:\ntestj1939 -r vcan0:0x80 &\nwhile true; do\n# send first RTS\ncansend vcan0 18EC8090#1014000303002301;\n# send second RTS\ncansend vcan0 18EC8090#1014000303002301;\n# send abort\ncansend vcan0 18EC8090#ff00000000002301;\ndone"], "name": "CVE-2023-52887", "public_date": "2024-07-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52887"], "threat_severity": "Low"}