CVE-2023-52628
Vulnerability from cvelistv5
Published
2024-03-28 07:33
Modified
2024-11-04 14:50
Severity ?
Summary
netfilter: nftables: exthdr: fix 4-byte stack OOB write
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website


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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nftables: exthdr: fix 4-byte stack OOB write\n\nIf priv-\u003elen is a multiple of 4, then dst[len / 4] can write past\nthe destination array which leads to stack corruption.\n\nThis construct is necessary to clean the remainder of the register\nin case -\u003elen is NOT a multiple of the register size, so make it\nconditional just like nft_payload.c does.\n\nThe bug was added in 4.1 cycle and then copied/inherited when\ntcp/sctp and ip option support was added.\n\nBug reported by Zero Day Initiative project (ZDI-CAN-21950,\nZDI-CAN-21951, ZDI-CAN-21961)."
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    "datePublished": "2024-03-28T07:33:46.217Z",
    "dateReserved": "2024-03-06T09:52:12.091Z",
    "dateUpdated": "2024-11-04T14:50:01.764Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52628\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-28T08:15:25.980\",\"lastModified\":\"2024-07-05T08:15:02.090\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: nftables: exthdr: fix 4-byte stack OOB write\\n\\nIf priv-\u003elen is a multiple of 4, then dst[len / 4] can write past\\nthe destination array which leads to stack corruption.\\n\\nThis construct is necessary to clean the remainder of the register\\nin case -\u003elen is NOT a multiple of the register size, so make it\\nconditional just like nft_payload.c does.\\n\\nThe bug was added in 4.1 cycle and then copied/inherited when\\ntcp/sctp and ip option support was added.\\n\\nBug reported by Zero Day Initiative project (ZDI-CAN-21950,\\nZDI-CAN-21951, ZDI-CAN-21961).\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nftables: exthdr: corrige escritura OOB de pila de 4 bytes Si priv-\u0026gt;len es m\u00faltiplo de 4, entonces dst[len / 4] puede escribir m\u00e1s all\u00e1 de la matriz de destino que conduce a la corrupci\u00f3n de la pila. Esta construcci\u00f3n es necesaria para limpiar el resto del registro en caso de que -\u0026gt;len NO sea un m\u00faltiplo del tama\u00f1o del registro, as\u00ed que h\u00e1galo condicional tal como lo hace nft_payload.c. El error se agreg\u00f3 en el ciclo 4.1 y luego se copi\u00f3/hered\u00f3 cuando se agreg\u00f3 la compatibilidad con las opciones tcp/sctp e ip. Error informado por el proyecto Zero Day Initiative (ZDI-CAN-21950, ZDI-CAN-21951, ZDI-CAN-21961).\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1ad7b189cc1411048434e8595ffcbe7873b71082\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/28a97c43c9e32f437ebb8d6126f9bb7f3ca9521a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a7d86a77c33ba1c357a7504341172cc1507f0698\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c8f292322ff16b9a2272a67de396c09a50e09dce\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cf39c4f77a773a547ac2bcf30ecdd303bb0c80cb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d9ebfc0f21377690837ebbd119e679243e0099cc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fd94d9dadee58e09b49075240fe83423eb1dcd36\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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