mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
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104 lines
4.2 KiB
JSON
104 lines
4.2 KiB
JSON
{
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"id": "CVE-2024-57881",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2025-01-11T16:15:24.307",
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"lastModified": "2025-01-16T15:20:10.900",
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"vulnStatus": "Analyzed",
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"cveTags": [],
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/page_alloc: don't call pfn_to_page() on possibly non-existent PFN in split_large_buddy()\n\nIn split_large_buddy(), we might call pfn_to_page() on a PFN that might\nnot exist. In corner cases, such as when freeing the highest pageblock in\nthe last memory section, this could result with CONFIG_SPARSEMEM &&\n!CONFIG_SPARSEMEM_EXTREME in __pfn_to_section() returning NULL and and\n__section_mem_map_addr() dereferencing that NULL pointer.\n\nLet's fix it, and avoid doing a pfn_to_page() call for the first\niteration, where we already have the page.\n\nSo far this was found by code inspection, but let's just CC stable as the\nfix is easy."
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},
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{
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"lang": "es",
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm/page_alloc: no llamar a pfn_to_page() en PFN posiblemente inexistente en split_large_buddy() En split_large_buddy(), podr\u00edamos llamar a pfn_to_page() en un PFN que podr\u00eda no existir. En casos especiales, como al liberar el bloque de p\u00e1gina m\u00e1s alto en la \u00faltima secci\u00f3n de memoria, esto podr\u00eda resultar en que CONFIG_SPARSEMEM && !CONFIG_SPARSEMEM_EXTREME en __pfn_to_section() devuelva NULL y __section_mem_map_addr() desreferenciando ese puntero NULL. Vamos a solucionarlo y evitar hacer una llamada a pfn_to_page() para la primera iteraci\u00f3n, donde ya tenemos la p\u00e1gina. Hasta ahora esto se encontr\u00f3 mediante inspecci\u00f3n de c\u00f3digo, pero simplemente controlemos CC estable ya que la soluci\u00f3n es f\u00e1cil."
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}
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],
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"metrics": {
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"cvssMetricV31": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"baseScore": 5.5,
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"baseSeverity": "MEDIUM",
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"availabilityImpact": "HIGH"
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},
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"exploitabilityScore": 1.8,
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"impactScore": 3.6
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}
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]
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},
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"weaknesses": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"description": [
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{
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"lang": "en",
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"value": "CWE-476"
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}
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]
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}
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],
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"configurations": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.10",
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"versionEndExcluding": "6.12.7",
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"matchCriteriaId": "DCCD8BD3-5C46-4941-B3DF-2AA3E532D3D6"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*",
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"matchCriteriaId": "62567B3C-6CEE-46D0-BC2E-B3717FBF7D13"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*",
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"matchCriteriaId": "5A073481-106D-4B15-B4C7-FB0213B8E1D4"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc3:*:*:*:*:*:*",
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"matchCriteriaId": "DE491969-75AE-4A6B-9A58-8FC5AF98798F"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/4234ca9884bcae9e48ed38652d91696ad5cd591d",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"tags": [
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"Patch"
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]
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},
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{
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"url": "https://git.kernel.org/stable/c/faeec8e23c10bd30e8aa759a2eb3018dae00f924",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"tags": [
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"Patch"
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]
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}
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]
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} |