{ "id": "CVE-2023-52462", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "published": "2024-02-23T15:15:08.540", "lastModified": "2024-11-21T08:39:49.553", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: fix check for attempt to corrupt spilled pointer\n\nWhen register is spilled onto a stack as a 1/2/4-byte register, we set\nslot_type[BPF_REG_SIZE - 1] (plus potentially few more below it,\ndepending on actual spill size). So to check if some stack slot has\nspilled register we need to consult slot_type[7], not slot_type[0].\n\nTo avoid the need to remember and double-check this in the future, just\nuse is_spilled_reg() helper." }, { "lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: bpf: revisi\u00f3n de correcci\u00f3n para intentar da\u00f1ar el puntero derramado Cuando el registro se derrama en una pila como un registro de 1/2/4 bytes, configuramos slot_type[BPF_REG_SIZE - 1] (m\u00e1s potencialmente algunos m\u00e1s debajo de \u00e9l, dependiendo del tama\u00f1o real del derrame). Entonces, para verificar si alguna ranura de la pila se ha desbordado, debemos consultar slot_type[7], no slot_type[0]. Para evitar la necesidad de recordar y volver a verificar esto en el futuro, simplemente use el asistente is_spilled_reg()." } ], "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:H/A:N", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE" }, "exploitabilityScore": 1.8, "impactScore": 3.6 } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "NVD-CWE-noinfo" } ] }, { "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-476" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.10.209", "matchCriteriaId": "384EB2A9-356B-40A1-968F-BCBB50C38134" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11.0", "versionEndExcluding": "5.15.148", "matchCriteriaId": "E25E1389-4B0F-407A-9C94-5908FF3EE88B" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16.0", "versionEndExcluding": "6.1.75", "matchCriteriaId": "2C4951FA-80C0-4B4C-9836-6E5035DEB0F9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2.0", "versionEndExcluding": "6.6.14", "matchCriteriaId": "BDBBEB0E-D13A-4567-8984-51C5375350B9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7.0", "versionEndExcluding": "6.7.2", "matchCriteriaId": "0EA3778C-730B-464C-8023-18CA6AC0B807" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/2757f17972d87773b3677777f5682510f13c66ef", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/40617d45ea05535105e202a8a819e388a2b1f036", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/67e6707f07354ed1acb4e65552e97c60cf9d69cf", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/8dc15b0670594543c356567a1a45b0182ec63174", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/ab125ed3ec1c10ccc36bc98c7a4256ad114a3dae", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/fc3e3c50a0a4cac1463967c110686189e4a59104", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/2757f17972d87773b3677777f5682510f13c66ef", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/40617d45ea05535105e202a8a819e388a2b1f036", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/67e6707f07354ed1acb4e65552e97c60cf9d69cf", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/8dc15b0670594543c356567a1a45b0182ec63174", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/ab125ed3ec1c10ccc36bc98c7a4256ad114a3dae", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/fc3e3c50a0a4cac1463967c110686189e4a59104", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html", "source": "af854a3a-2127-422b-91ae-364da2661108" } ] }