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        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "state": "PUBLISHED",
        "assignerShortName": "redhat",
        "dateReserved": "2023-08-09T13:05:54.566Z",
        "datePublished": "2023-08-09T14:53:44.835Z",
        "dateUpdated": "2024-09-16T11:04:07.602Z"
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    "containers": {
        "cna": {
            "title": "Kernel: exfat: stack overflow in exfat_get_uniname_from_ext_entry",
            "metrics": [
                {
                    "other": {
                        "content": {
                            "value": "Moderate",
                            "namespace": "https://access.redhat.com/security/updates/classification/"
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                        "type": "Red Hat severity rating"
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                },
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "LOCAL",
                        "availabilityImpact": "NONE",
                        "baseScore": 6,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "HIGH",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
                        "version": "3.1"
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            "descriptions": [
                {
                    "lang": "en",
                    "value": "A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a single long file name. Since the file name characters are copied into a stack variable, a local privileged attacker could use this flaw to overflow the kernel stack."
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                    "product": "Red Hat Enterprise Linux 9",
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                        "cpe:/a:redhat:enterprise_linux:9::realtime",
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                    "product": "Red Hat Enterprise Linux 6",
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                    "packageName": "kernel",
                    "defaultStatus": "unaffected",
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                    "product": "Red Hat Enterprise Linux 7",
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                    "packageName": "kernel-rt",
                    "defaultStatus": "unaffected",
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                    "product": "Red Hat Enterprise Linux 8",
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                    "packageName": "kernel",
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            "references": [
                {
                    "url": "https://access.redhat.com/errata/RHSA-2023:6583",
                    "name": "RHSA-2023:6583",
                    "tags": [
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                    "url": "https://dfir.ru/2023/08/23/cve-2023-4273-a-vulnerability-in-the-linux-exfat-driver/"
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            "datePublic": "2023-07-13T00:00:00+00:00",
            "problemTypes": [
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                    "descriptions": [
                        {
                            "cweId": "CWE-121",
                            "description": "Stack-based Buffer Overflow",
                            "lang": "en",
                            "type": "CWE"
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            "timeline": [
                {
                    "lang": "en",
                    "time": "2023-07-10T00:00:00+00:00",
                    "value": "Reported to Red Hat."
                },
                {
                    "lang": "en",
                    "time": "2023-07-13T00:00:00+00:00",
                    "value": "Made public."
                }
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            "credits": [
                {
                    "lang": "en",
                    "value": "Red Hat would like to thank Maxim Suhanov for reporting this issue."
                }
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