280 lines
14 KiB
JSON
280 lines
14 KiB
JSON
{
|
||
"dataType": "CVE_RECORD",
|
||
"dataVersion": "5.2",
|
||
"cveMetadata": {
|
||
"cveId": "CVE-2023-52441",
|
||
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
||
"state": "PUBLISHED",
|
||
"assignerShortName": "Linux",
|
||
"dateReserved": "2024-02-20T12:30:33.291Z",
|
||
"datePublished": "2024-02-21T07:21:01.075Z",
|
||
"dateUpdated": "2026-08-15T12:23:47.601Z"
|
||
},
|
||
"containers": {
|
||
"cna": {
|
||
"providerMetadata": {
|
||
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
||
"shortName": "Linux",
|
||
"dateUpdated": "2026-08-15T12:23:47.601Z"
|
||
},
|
||
"descriptions": [
|
||
{
|
||
"lang": "en",
|
||
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix out of bounds in init_smb2_rsp_hdr()\n\nIf client send smb2 negotiate request and then send smb1 negotiate\nrequest, init_smb2_rsp_hdr is called for smb1 negotiate request since\nneed_neg is set to false. This patch ignore smb1 packets after ->need_neg\nis set to false."
|
||
}
|
||
],
|
||
"metrics": [
|
||
{
|
||
"cvssV3_1": {
|
||
"version": "3.1",
|
||
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
|
||
"baseScore": 9.1,
|
||
"baseSeverity": "CRITICAL"
|
||
},
|
||
"scenarios": [
|
||
{
|
||
"lang": "en",
|
||
"value": "AV:N - The bug is in ksmbd (fs/smb/server/), the in-kernel SMB server on TCP/445; init_smb2_rsp_hdr() runs while processing PDUs received from a remote peer via ksmbd_conn_handler_loop(), with no local access required.\nAC:L - The attacker reliably triggers the defect by sending an SMB2 negotiate (clearing need_neg) then an SMB1 negotiate on the same connection; both sides of the sequence and the small pdu_size that sizes the request slab object are fully attacker-controlled, with no race or external precondition.\nPR:N - The OOB occurs in init_rsp_hdr() during/after negotiate, before SESSION_SETUP and any credential check; smb2_check_user_session() does not require a session for negotiate, matching ZDI’s unauthenticated assessment (ZDI-CAN-21541).\nUI:N - Exploitation needs only attacker-sent SMB negotiate PDUs to an already-running ksmbd listener; no local user or administrator action is required.\nS:U - The out-of-bounds read and leaked response data stay within the host kernel/ksmbd security authority; this is not a VM escape, IOMMU bypass, or sandbox boundary cross.\nC:H - init_smb2_rsp_hdr() memcpy’s 16 bytes of Signature (and copies SessionId/TreeId) from past the end of the attacker-sized SMB1 request buffer into the response, which ksmbd_conn_write() returns to the unauthenticated peer—a groomable remote kernel-heap disclosure.\nI:N - The defect is a read past the request buffer; response writes stay inside the correctly allocated response buffer, so there is no out-of-bounds write or integrity/control-flow primitive from this bug alone.\nA:H - The overread past a tiny kmalloc request object can fault under KFENCE/DEBUG_PAGEALLOC or panic under KASAN/panic_on_warn (as in related KASAN reports), and the attacker can retrigger it pre-authentication at will."
|
||
}
|
||
]
|
||
}
|
||
],
|
||
"affected": [
|
||
{
|
||
"product": "Linux",
|
||
"vendor": "Linux",
|
||
"defaultStatus": "unaffected",
|
||
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
||
"programFiles": [
|
||
"fs/smb/server/server.c",
|
||
"fs/smb/server/smb_common.c",
|
||
"fs/smb/server/smb_common.h"
|
||
],
|
||
"versions": [
|
||
{
|
||
"version": "51a8534c0f35c0401e45f1055f914729cad98bf9",
|
||
"lessThan": "5c0df9d30c289d6b9d7d44e2a450de2f8e3cf40b",
|
||
"status": "affected",
|
||
"versionType": "git"
|
||
},
|
||
{
|
||
"version": "0b3ec5671ac06829ccebdaeec05acedfec327f42",
|
||
"lessThan": "330d900620dfc9893011d725b3620cd2ee0bc2bc",
|
||
"status": "affected",
|
||
"versionType": "git"
|
||
},
|
||
{
|
||
"version": "39b291b86b5988bf8753c3874d5c773399d09b96",
|
||
"lessThan": "aa669ef229ae8dd779da9caa24e254964545895f",
|
||
"status": "affected",
|
||
"versionType": "git"
|
||
},
|
||
{
|
||
"version": "39b291b86b5988bf8753c3874d5c773399d09b96",
|
||
"lessThan": "536bb492d39bb6c080c92f31e8a55fe9934f452b",
|
||
"status": "affected",
|
||
"versionType": "git"
|
||
},
|
||
{
|
||
"version": "cc32cd98a0aee4cc3eb611cbce11795b1aaa738a",
|
||
"status": "affected",
|
||
"versionType": "git"
|
||
},
|
||
{
|
||
"version": "5.15.105",
|
||
"lessThan": "5.15.145",
|
||
"status": "affected",
|
||
"versionType": "semver"
|
||
},
|
||
{
|
||
"version": "6.1.22",
|
||
"lessThan": "6.1.53",
|
||
"status": "affected",
|
||
"versionType": "semver"
|
||
},
|
||
{
|
||
"version": "6.2.9",
|
||
"lessThan": "6.3",
|
||
"status": "affected",
|
||
"versionType": "semver"
|
||
}
|
||
]
|
||
},
|
||
{
|
||
"product": "Linux",
|
||
"vendor": "Linux",
|
||
"defaultStatus": "affected",
|
||
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
||
"programFiles": [
|
||
"fs/smb/server/server.c",
|
||
"fs/smb/server/smb_common.c",
|
||
"fs/smb/server/smb_common.h"
|
||
],
|
||
"versions": [
|
||
{
|
||
"version": "6.3",
|
||
"status": "affected"
|
||
},
|
||
{
|
||
"version": "0",
|
||
"lessThan": "6.3",
|
||
"status": "unaffected",
|
||
"versionType": "semver"
|
||
},
|
||
{
|
||
"version": "5.15.145",
|
||
"lessThanOrEqual": "5.15.*",
|
||
"status": "unaffected",
|
||
"versionType": "semver"
|
||
},
|
||
{
|
||
"version": "6.1.53",
|
||
"lessThanOrEqual": "6.1.*",
|
||
"status": "unaffected",
|
||
"versionType": "semver"
|
||
},
|
||
{
|
||
"version": "6.4.16",
|
||
"lessThanOrEqual": "6.4.*",
|
||
"status": "unaffected",
|
||
"versionType": "semver"
|
||
},
|
||
{
|
||
"version": "6.5",
|
||
"lessThanOrEqual": "*",
|
||
"status": "unaffected",
|
||
"versionType": "original_commit_for_fix"
|
||
}
|
||
]
|
||
}
|
||
],
|
||
"cpeApplicability": [
|
||
{
|
||
"nodes": [
|
||
{
|
||
"operator": "OR",
|
||
"negate": false,
|
||
"cpeMatch": [
|
||
{
|
||
"vulnerable": true,
|
||
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
||
"versionStartIncluding": "5.15.105",
|
||
"versionEndExcluding": "5.15.145"
|
||
},
|
||
{
|
||
"vulnerable": true,
|
||
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
||
"versionStartIncluding": "6.1.22",
|
||
"versionEndExcluding": "6.1.53"
|
||
},
|
||
{
|
||
"vulnerable": true,
|
||
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
||
"versionStartIncluding": "6.3",
|
||
"versionEndExcluding": "6.4.16"
|
||
},
|
||
{
|
||
"vulnerable": true,
|
||
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
||
"versionStartIncluding": "6.3",
|
||
"versionEndExcluding": "6.5"
|
||
},
|
||
{
|
||
"vulnerable": true,
|
||
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
||
"versionStartIncluding": "6.2.9"
|
||
}
|
||
]
|
||
}
|
||
]
|
||
}
|
||
],
|
||
"references": [
|
||
{
|
||
"url": "https://git.kernel.org/stable/c/5c0df9d30c289d6b9d7d44e2a450de2f8e3cf40b"
|
||
},
|
||
{
|
||
"url": "https://git.kernel.org/stable/c/330d900620dfc9893011d725b3620cd2ee0bc2bc"
|
||
},
|
||
{
|
||
"url": "https://git.kernel.org/stable/c/aa669ef229ae8dd779da9caa24e254964545895f"
|
||
},
|
||
{
|
||
"url": "https://git.kernel.org/stable/c/536bb492d39bb6c080c92f31e8a55fe9934f452b"
|
||
}
|
||
],
|
||
"title": "ksmbd: fix out of bounds in init_smb2_rsp_hdr()",
|
||
"x_generator": {
|
||
"engine": "bippy-1.2.0"
|
||
}
|
||
},
|
||
"adp": [
|
||
{
|
||
"providerMetadata": {
|
||
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
|
||
"shortName": "CVE",
|
||
"dateUpdated": "2024-08-02T22:55:41.809Z"
|
||
},
|
||
"title": "CVE Program Container",
|
||
"references": [
|
||
{
|
||
"url": "https://git.kernel.org/stable/c/5c0df9d30c289d6b9d7d44e2a450de2f8e3cf40b",
|
||
"tags": [
|
||
"x_transferred"
|
||
]
|
||
},
|
||
{
|
||
"url": "https://git.kernel.org/stable/c/330d900620dfc9893011d725b3620cd2ee0bc2bc",
|
||
"tags": [
|
||
"x_transferred"
|
||
]
|
||
},
|
||
{
|
||
"url": "https://git.kernel.org/stable/c/aa669ef229ae8dd779da9caa24e254964545895f",
|
||
"tags": [
|
||
"x_transferred"
|
||
]
|
||
},
|
||
{
|
||
"url": "https://git.kernel.org/stable/c/536bb492d39bb6c080c92f31e8a55fe9934f452b",
|
||
"tags": [
|
||
"x_transferred"
|
||
]
|
||
}
|
||
]
|
||
},
|
||
{
|
||
"metrics": [
|
||
{
|
||
"other": {
|
||
"type": "ssvc",
|
||
"content": {
|
||
"id": "CVE-2023-52441",
|
||
"role": "CISA Coordinator",
|
||
"options": [
|
||
{
|
||
"Exploitation": "none"
|
||
},
|
||
{
|
||
"Automatable": "no"
|
||
},
|
||
{
|
||
"Technical Impact": "partial"
|
||
}
|
||
],
|
||
"version": "2.0.3",
|
||
"timestamp": "2024-09-10T16:02:49.418159Z"
|
||
}
|
||
}
|
||
}
|
||
],
|
||
"title": "CISA ADP Vulnrichment",
|
||
"providerMetadata": {
|
||
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
||
"shortName": "CISA-ADP",
|
||
"dateUpdated": "2024-09-11T17:33:54.916Z"
|
||
}
|
||
}
|
||
]
|
||
}
|
||
} |