cvelist/2023/3xxx/CVE-2023-3640.json
2023-07-24 16:00:33 +00:00

186 lines
8.1 KiB
JSON

{
"data_version": "4.0",
"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2023-3640",
"ASSIGNER": "secalert@redhat.com",
"STATE": "PUBLIC"
},
"description": {
"description_data": [
{
"lang": "eng",
"value": "A possible unauthorized memory access flaw was found in the Linux kernel's cpu_entry_area mapping of X86 CPU data to memory, where a user may guess the location of exception stacks or other important data. Based on the previous CVE-2023-0597, the 'Randomize per-cpu entry area' feature was implemented in /arch/x86/mm/cpu_entry_area.c, which works through the init_cea_offsets() function when KASLR is enabled. However, despite this feature, there is still a risk of per-cpu entry area leaks. This issue could allow a local user to gain access to some important data with memory in an expected location and potentially escalate their privileges on the system."
}
]
},
"problemtype": {
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"description": [
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"lang": "eng",
"value": "Observable Discrepancy",
"cweId": "CWE-203"
}
]
}
]
},
"affects": {
"vendor": {
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{
"vendor_name": "n/a",
"product": {
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"product_name": "kernel",
"version": {
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{
"vendor_name": "Red Hat",
"product": {
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"product_name": "Red Hat Enterprise Linux 6",
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"product_name": "Red Hat Enterprise Linux 8",
"version": {
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{
"vendor_name": "Fedora",
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"references": {
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"url": "https://access.redhat.com/security/cve/CVE-2023-3640",
"refsource": "MISC",
"name": "https://access.redhat.com/security/cve/CVE-2023-3640"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2217523",
"refsource": "MISC",
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=2217523"
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"impact": {
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{
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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