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The memory, however, is allocated from the\nstack meaning that information may be leaked to the VM. Initialize the\nmessage buffer to 0 so that no information is passed to the VM in this\ncase."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: igb: inicializar mensaje de buz\u00f3n para restablecer VF Cuando no se asigna una direcci\u00f3n MAC a la VF, esa parte del mensaje enviado a la VF no se configura. Sin embargo, la memoria se asigna desde la pila, lo que significa que la informaci\u00f3n puede filtrarse a la VM. Inicialice el b\u00fafer de mensajes a 0 para que no se pase informaci\u00f3n a la VM en este caso."}], "id": "CVE-2022-48949", "lastModified": "2024-10-29T16:32:41.797", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-10-21T20:15:06.337", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/367e1e3399dbc56fc669740c4ab60e35da632b0e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/51fd5ede7ed42f272682a0c33d6f0767b3484a3d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a6629659af3f5c6a91e3914ea62554c975ab77f4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c383c7c35c7bc15e07a04eefa060a8a80cbeae29"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c581439a977545d61849a72e8ed631cfc8a2a3c1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/de5dc44370fbd6b46bd7f1a1e00369be54a041c8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ef1d739dd1f362aec081278ff92f943c31eb177a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f2479c3daaabccbac6c343a737615d0c595c6dc4"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-908"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: igb: Initialize mailbox message for VF reset", "id": "2320667", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320667"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nigb: Initialize mailbox message for VF reset\nWhen a MAC address is not assigned to the VF, that portion of the message\nsent to the VF is not set. The memory, however, is allocated from the\nstack meaning that information may be leaked to the VM. Initialize the\nmessage buffer to 0 so that no information is passed to the VM in this\ncase."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, prevent module igb from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically."}, "name": "CVE-2022-48949", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48949\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48949\nhttps://lore.kernel.org/linux-cve-announce/2024102140-CVE-2022-48949-a7a1@gregkh/T"], "statement": "Only small memory leak possible for specific case, so security impact is limited.", "threat_severity": "Low"}

{}