{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2023-52733",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-05-21T15:19:24.232Z",
        "datePublished": "2024-05-21T15:22:58.605Z",
        "dateUpdated": "2024-08-02T23:11:35.875Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-05-29T05:16:20.765Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/decompressor: specify __decompress() buf len to avoid overflow\n\nHistorically calls to __decompress() didn't specify \"out_len\" parameter\non many architectures including s390, expecting that no writes beyond\nuncompressed kernel image are performed. This has changed since commit\n2aa14b1ab2c4 (\"zstd: import usptream v1.5.2\") which includes zstd library\ncommit 6a7ede3dfccb (\"Reduce size of dctx by reutilizing dst buffer\n(#2751)\"). Now zstd decompression code might store literal buffer in\nthe unwritten portion of the destination buffer. Since \"out_len\" is\nnot set, it is considered to be unlimited and hence free to use for\noptimization needs. On s390 this might corrupt initrd or ipl report\nwhich are often placed right after the decompressor buffer. Luckily the\nsize of uncompressed kernel image is already known to the decompressor,\nso to avoid the problem simply specify it in the \"out_len\" parameter."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/s390/boot/decompressor.c"
                    ],
                    "versions": [
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "16409f7d9ca5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "55dbd6f4ea95",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "9ed522143f95",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "f1eb22d0ff06",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "7ab41c2c08a3",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/s390/boot/decompressor.c"
                    ],
                    "versions": [
                        {
                            "version": "5.4.232",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.10.169",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.15.95",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.1.13",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/16409f7d9ca5bb8220e1049ea9aae0d3c94d2dfb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/55dbd6f4ea954751340f4f73d5dcd7c8f12208b2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9ed522143f959630f8b7782ddc212900d8f609a9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f1eb22d0ff064ad458b3b1a1eaa84ac3996206c2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7ab41c2c08a32132ba8c14624910e2fe8ce4ba4b"
                }
            ],
            "title": "s390/decompressor: specify __decompress() buf len to avoid overflow",
            "x_generator": {
                "engine": "bippy-a5840b7849dd"
            }
        },
        "adp": [
            {
                "title": "CISA ADP Vulnrichment",
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 7.8,
                            "attackVector": "LOCAL",
                            "baseSeverity": "HIGH",
                            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                            "integrityImpact": "HIGH",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "LOW",
                            "confidentialityImpact": "HIGH"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2023-52733",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2024-05-22T18:53:36.981536Z"
                            }
                        }
                    }
                ],
                "affected": [
                    {
                        "cpes": [
                            "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
                        ],
                        "vendor": "linux",
                        "product": "linux_kernel",
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                                "version": "1da177e4c3f4"
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                        "defaultStatus": "unknown"
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                                "status": "unaffected",
                                "version": "5.4.232"
                            }
                        ],
                        "defaultStatus": "unknown"
                    },
                    {
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                            "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
                        ],
                        "vendor": "linux",
                        "product": "linux_kernel",
                        "versions": [
                            {
                                "status": "unaffected",
                                "version": "5.10.169"
                            }
                        ],
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                        ],
                        "defaultStatus": "unknown"
                    },
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                        ],
                        "vendor": "linux",
                        "product": "linux_kernel",
                        "versions": [
                            {
                                "status": "unaffected",
                                "version": "6.1.13"
                            }
                        ],
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                    },
                    {
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                                "version": "6.2"
                            }
                        ],
                        "defaultStatus": "unknown"
                    }
                ],
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "lang": "en",
                                "type": "CWE",
                                "cweId": "CWE-120",
                                "description": "CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"
                            }
                        ]
                    }
                ],
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-06-04T17:22:57.298Z"
                }
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                    "shortName": "CVE",
                    "dateUpdated": "2024-08-02T23:11:35.875Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://git.kernel.org/stable/c/16409f7d9ca5bb8220e1049ea9aae0d3c94d2dfb",
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