{ "id": "CVE-2024-50299", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "published": "2024-11-19T02:16:32.053", "lastModified": "2024-11-21T21:11:43.917", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: properly validate chunk size in sctp_sf_ootb()\n\nA size validation fix similar to that in Commit 50619dbf8db7 (\"sctp: add\nsize validation when walking chunks\") is also required in sctp_sf_ootb()\nto address a crash reported by syzbot:\n\n BUG: KMSAN: uninit-value in sctp_sf_ootb+0x7f5/0xce0 net/sctp/sm_statefuns.c:3712\n sctp_sf_ootb+0x7f5/0xce0 net/sctp/sm_statefuns.c:3712\n sctp_do_sm+0x181/0x93d0 net/sctp/sm_sideeffect.c:1166\n sctp_endpoint_bh_rcv+0xc38/0xf90 net/sctp/endpointola.c:407\n sctp_inq_push+0x2ef/0x380 net/sctp/inqueue.c:88\n sctp_rcv+0x3831/0x3b20 net/sctp/input.c:243\n sctp4_rcv+0x42/0x50 net/sctp/protocol.c:1159\n ip_protocol_deliver_rcu+0xb51/0x13d0 net/ipv4/ip_input.c:205\n ip_local_deliver_finish+0x336/0x500 net/ipv4/ip_input.c:233" }, { "lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: sctp: validar correctamente el tama\u00f1o de los fragmentos en sctp_sf_ootb() Tambi\u00e9n se requiere una correcci\u00f3n de validaci\u00f3n de tama\u00f1o similar a la del Commit 50619dbf8db7 (\"sctp: agregar validaci\u00f3n de tama\u00f1o al recorrer fragmentos\") en sctp_sf_ootb() para abordar un fallo informado por syzbot: ERROR: KMSAN: valor no inicializado en sctp_sf_ootb+0x7f5/0xce0 net/sctp/sm_statefuns.c:3712 sctp_sf_ootb+0x7f5/0xce0 net/sctp/sm_statefuns.c:3712 sctp_do_sm+0x181/0x93d0 net/sctp/sm_sideeffect.c:1166 sctp_endpoint_bh_rcv+0xc38/0xf90 red/sctp/endpointola.c:407 sctp_inq_push+0x2ef/0x380 red/sctp/inqueue.c:88 sctp_rcv+0x3831/0x3b20 red/sctp/input.c:243 sctp4_rcv+0x42/0x50 red/sctp/protocol.c:1159 ip_protocol_deliver_rcu+0xb51/0x13d0 red/ipv4/ip_input.c:205 ip_local_deliver_finish+0x336/0x500 red/ipv4/ip_input.c:233" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH" }, "exploitabilityScore": 1.8, "impactScore": 3.6 } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-908" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "4.19.324", "matchCriteriaId": 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