{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2024-49858",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-10-21T12:17:06.016Z",
        "datePublished": "2024-10-21T12:27:17.308Z",
        "dateUpdated": "2026-05-11T20:40:35.337Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T20:40:35.337Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nefistub/tpm: Use ACPI reclaim memory for event log to avoid corruption\n\nThe TPM event log table is a Linux specific construct, where the data\nproduced by the GetEventLog() boot service is cached in memory, and\npassed on to the OS using an EFI configuration table.\n\nThe use of EFI_LOADER_DATA here results in the region being left\nunreserved in the E820 memory map constructed by the EFI stub, and this\nis the memory description that is passed on to the incoming kernel by\nkexec, which is therefore unaware that the region should be reserved.\n\nEven though the utility of the TPM2 event log after a kexec is\nquestionable, any corruption might send the parsing code off into the\nweeds and crash the kernel. So let's use EFI_ACPI_RECLAIM_MEMORY\ninstead, which is always treated as reserved by the E820 conversion\nlogic."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/firmware/efi/libstub/tpm.c"
                    ],
                    "versions": [
                        {
                            "version": "33b6d03469b2206fb51ecc37f40411a857ad8fff",
                            "lessThan": "f76b69ab9cf04358266e3cea5748c0c2791fbb08",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "33b6d03469b2206fb51ecc37f40411a857ad8fff",
                            "lessThan": "11690d7e76842f29b60fbb5b35bc97d206ea0e83",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "33b6d03469b2206fb51ecc37f40411a857ad8fff",
                            "lessThan": "5b22c038fb2757c652642933de5664da471f8cb7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "33b6d03469b2206fb51ecc37f40411a857ad8fff",
                            "lessThan": "19fd2f2c5fb36b61506d3208474bfd8fdf1cada3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "33b6d03469b2206fb51ecc37f40411a857ad8fff",
                            "lessThan": "38d9b07d99b789efb6d8dda21f1aaad636c38993",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "33b6d03469b2206fb51ecc37f40411a857ad8fff",
                            "lessThan": "2e6871a632a99d9b9e2ce3a7847acabe99e5a26e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "33b6d03469b2206fb51ecc37f40411a857ad8fff",
                            "lessThan": "77d48d39e99170b528e4f2e9fc5d1d64cdedd386",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/firmware/efi/libstub/tpm.c"
                    ],
                    "versions": [
                        {
                            "version": "4.16",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.16",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.227",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.168",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.113",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.54",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.10.13",
                            "lessThanOrEqual": "6.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.11.2",
                            "lessThanOrEqual": "6.11.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.16",
                                    "versionEndExcluding": "5.10.227"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.16",
                                    "versionEndExcluding": "5.15.168"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.16",
                                    "versionEndExcluding": "6.1.113"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.16",
                                    "versionEndExcluding": "6.6.54"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.16",
                                    "versionEndExcluding": "6.10.13"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.16",
                                    "versionEndExcluding": "6.11.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.16",
                                    "versionEndExcluding": "6.12"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/f76b69ab9cf04358266e3cea5748c0c2791fbb08"
                },
                {
                    "url": "https://git.kernel.org/stable/c/11690d7e76842f29b60fbb5b35bc97d206ea0e83"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5b22c038fb2757c652642933de5664da471f8cb7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/19fd2f2c5fb36b61506d3208474bfd8fdf1cada3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/38d9b07d99b789efb6d8dda21f1aaad636c38993"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2e6871a632a99d9b9e2ce3a7847acabe99e5a26e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/77d48d39e99170b528e4f2e9fc5d1d64cdedd386"
                }
            ],
            "title": "efistub/tpm: Use ACPI reclaim memory for event log to avoid corruption",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
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                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2024-49858",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
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                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2024-10-21T12:56:02.250795Z"
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                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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                    "dateUpdated": "2024-10-21T13:04:10.785Z"
                }
            },
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
                    },
                    {
                        "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
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}