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vuln-cve/data/2023/0xxx/CVE-2023-0240.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"cveMetadata": {
"cveId": "CVE-2023-0240",
"assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778",
"state": "PUBLISHED",
"assignerShortName": "Google",
"dateReserved": "2023-01-12T13:04:00.937Z",
"datePublished": "2023-01-30T13:17:09.182Z",
"dateUpdated": "2024-08-02T05:02:43.942Z"
},
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{
"defaultStatus": "unaffected",
"packageName": "io_uring",
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"repo": "https://git.kernel.org",
"vendor": "Linux",
"versions": [
{
"lessThanOrEqual": "5.10.161",
"status": "affected",
"version": "5.10",
"versionType": "custom"
}
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"credits": [
{
"lang": "en",
"type": "finder",
"user": "00000000-0000-4000-9000-000000000000",
"value": "Bing-Jhong Billy Jheng of Starlabs"
}
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"datePublic": "2022-12-22T14:30:00.000Z",
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"value": "There is a logic error in io_uring's implementation which can be used to trigger a use-after-free vulnerability leading to privilege escalation.<br><br>In the io_prep_async_work function the assumption that the last io_grab_identity call cannot return false is not true, and in this case the function will use the init_cred or the previous linked requests identity to do operations instead of using the current identity. This can lead to reference counting issues causing use-after-free. We recommend upgrading past version 5.10.161."
}
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"value": "There is a logic error in io_uring's implementation which can be used to trigger a use-after-free vulnerability leading to privilege escalation.\n\nIn the io_prep_async_work function the assumption that the last io_grab_identity call cannot return false is not true, and in this case the function will use the init_cred or the previous linked requests identity to do operations instead of using the current identity. This can lead to reference counting issues causing use-after-free. We recommend upgrading past version 5.10.161."
}
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"attackVector": "LOCAL",
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"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
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"shortName": "Google",
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"references": [
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"url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring?h=linux-5.10.y&id=788d0824269bef539fe31a785b1517882eafed93"
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{
"url": "https://github.com/gregkh/linux/commit/1e6fa5216a0e59ef02e8b6b40d553238a3b81d49"
},
{
"url": "https://kernel.dance/#788d0824269bef539fe31a785b1517882eafed93"
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"source": {
"discovery": "EXTERNAL"
},
"title": "Use after free in io_uring in the Linux Kernel",
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
},
"adp": [
{
"title": "CVE Program Container",
"references": [
{
"url": "https://security.netapp.com/advisory/ntap-20230316-0001/"
},
{
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring?h=linux-5.10.y&id=788d0824269bef539fe31a785b1517882eafed93",
"tags": [
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},
{
"url": "https://github.com/gregkh/linux/commit/1e6fa5216a0e59ef02e8b6b40d553238a3b81d49",
"tags": [
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{
"url": "https://kernel.dance/#788d0824269bef539fe31a785b1517882eafed93",
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"providerMetadata": {
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"shortName": "CVE",
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{
"affected": [
{
"vendor": "linux",
"product": "linux_kernel",
"cpes": [
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"versions": [
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"status": "affected",
"lessThanOrEqual": "5.10.161",
"versionType": "custom"
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]
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"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2024-08-01T18:22:24.961145Z",
"id": "CVE-2023-0240",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
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],
"role": "CISA Coordinator",
"version": "2.0.3"
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],
"title": "CISA ADP Vulnrichment",
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