cvelist/2023/4xxx/CVE-2023-4004.json

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{
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"data_type": "CVE",
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"ASSIGNER": "secalert@redhat.com",
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},
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"value": "A use-after-free flaw was found in the Linux kernel's netfilter in the way a user triggers the nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local user to crash the system or potentially escalate their privileges on the system."
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{
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{
"url": "https://access.redhat.com/errata/RHSA-2023:4961",
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{
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{
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{
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{
"url": "https://access.redhat.com/security/cve/CVE-2023-4004",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2225275",
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"name": "https://bugzilla.redhat.com/show_bug.cgi?id=2225275"
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{
"url": "https://patchwork.ozlabs.org/project/netfilter-devel/patch/20230719190824.21196-1-fw@strlen.de/",
"refsource": "MISC",
"name": "https://patchwork.ozlabs.org/project/netfilter-devel/patch/20230719190824.21196-1-fw@strlen.de/"
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},
{
"url": "https://www.debian.org/security/2023/dsa-5480",
"refsource": "MISC",
"name": "https://www.debian.org/security/2023/dsa-5480"
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},
{
"url": "https://www.debian.org/security/2023/dsa-5492",
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"name": "https://www.debian.org/security/2023/dsa-5492"
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}
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"work_around": [
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"lang": "en",
"value": "This flaw can be mitigated by preventing the affected netfilter kernel module from being loaded. For instructions on how to blacklist a kernel module, please see https://access.redhat.com/solutions/41278."
}
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"impact": {
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{
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"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",
"version": "3.1"
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}
]
}
}