CVE-2024-35862 (GCVE-0-2024-35862)
Vulnerability from cvelistv5 – Published: 2024-05-19 08:34 – Updated: 2026-08-05 11:30
VLAI
EPSS
VEX
Title
smb: client: fix potential UAF in smb2_is_network_name_deleted()
Summary
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix potential UAF in smb2_is_network_name_deleted()
Skip sessions that are being teared down (status == SES_EXITING) to
avoid UAF.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:41 UTC
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
9e550b085206544bd03a8b1dd58a5414e9508351 , < f9414004798d9742c1af23a1d839fe6a9503751c
(git)
Affected: 9e550b085206544bd03a8b1dd58a5414e9508351 , < aa582b33f94453fdeaff1e7d0aa252c505975e01 (git) Affected: 9e550b085206544bd03a8b1dd58a5414e9508351 , < d919b6ea15ffa56fbafef4a1d92f47aeda9af645 (git) Affected: 9e550b085206544bd03a8b1dd58a5414e9508351 , < 63981561ffd2d4987807df4126f96a11e18b0c1d (git) |
guessed | |
| Linux | Linux |
Affected:
5.12
Unaffected: 0 , < 5.12 (semver) Unaffected: 6.1.85 , ≤ 6.1.* (semver) Unaffected: 6.6.26 , ≤ 6.6.* (semver) Unaffected: 6.8.5 , ≤ 6.8.* (semver) Unaffected: 6.9 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T03:21:48.581Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/f9414004798d9742c1af23a1d839fe6a9503751c"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/aa582b33f94453fdeaff1e7d0aa252c505975e01"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/d919b6ea15ffa56fbafef4a1d92f47aeda9af645"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/63981561ffd2d4987807df4126f96a11e18b0c1d"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-35862",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T15:41:27.598442Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-09-11T17:33:17.367Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"fs/smb/client/smb2ops.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "f9414004798d9742c1af23a1d839fe6a9503751c",
"status": "affected",
"version": "9e550b085206544bd03a8b1dd58a5414e9508351",
"versionType": "git"
},
{
"lessThan": "aa582b33f94453fdeaff1e7d0aa252c505975e01",
"status": "affected",
"version": "9e550b085206544bd03a8b1dd58a5414e9508351",
"versionType": "git"
},
{
"lessThan": "d919b6ea15ffa56fbafef4a1d92f47aeda9af645",
"status": "affected",
"version": "9e550b085206544bd03a8b1dd58a5414e9508351",
"versionType": "git"
},
{
"lessThan": "63981561ffd2d4987807df4126f96a11e18b0c1d",
"status": "affected",
"version": "9e550b085206544bd03a8b1dd58a5414e9508351",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"fs/smb/client/smb2ops.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.12"
},
{
"lessThan": "5.12",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.85",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.26",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.8.*",
"status": "unaffected",
"version": "6.8.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.9",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.85",
"versionStartIncluding": "5.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.26",
"versionStartIncluding": "5.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.8.5",
"versionStartIncluding": "5.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.9",
"versionStartIncluding": "5.12",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix potential UAF in smb2_is_network_name_deleted()\n\nSkip sessions that are being teared down (status == SES_EXITING) to\navoid UAF."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:N - The vulnerable function is invoked by the CIFS demultiplex thread on every SMB2 response received over TCP/445, keyed entirely on server-supplied fields (`Status` and `Id.SyncId.TreeId`). A malicious SMB server, or an off-path/MITM attacker injecting into an unsigned SMB connection, triggers it purely with network data.\nAC:L - The remote peer controls both sides of the race: it forces the session teardown (failed reconnect/session setup drives `__cifs_put_smb_ses()`), and it holds the SES_EXITING window open for the full request timeout simply by not answering the SMB2 LOGOFF, while flooding STATUS_NETWORK_NAME_DELETED responses. The attempt is freely repeatable with no attacker-uncontrollable precondition.\nPR:N - The attacker is the remote SMB peer and needs no credentials or privileges on the target Linux client; the code path runs in the kernel demux thread before any signature validation of the response.\nUI:N - The attack works against an already-established mount \u2014 an fstab/autofs/systemd-automount or DFS-referral connection, or a file server compromised or MITM\u0027d after mount \u2014 and the server itself induces the session teardown, so no victim action is required.\nS:U - The use-after-free corrupts kernel slab memory within the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Use-after-free on `cifs_tcon`/`cifs_ses` gives an attacker-influenced read of freed slab contents, and `pr_warn_once(\"%s\", tcon-\u003etree_name)` walks freed heap memory into the kernel log, leaking whatever now occupies that object.\nI:H - The path writes into freed memory \u2014 `spin_lock(\u0026tcon-\u003etc_lock)` plus `tcon-\u003eneed_reconnect = true` \u2014 on an object the remote attacker selects via the controlled TreeId, giving a heap-spray-able corruption primitive leveragable for control-flow hijack.\nA:H - Dereferencing the poisoned/freed session and tcon produces a general protection fault or KASAN oops in the cifsd kernel thread (as shown in the sibling fix\u0027s trace), crashing or hanging the client with the mount unusable."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T11:30:26.161Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/f9414004798d9742c1af23a1d839fe6a9503751c"
},
{
"url": "https://git.kernel.org/stable/c/aa582b33f94453fdeaff1e7d0aa252c505975e01"
},
{
"url": "https://git.kernel.org/stable/c/d919b6ea15ffa56fbafef4a1d92f47aeda9af645"
},
{
"url": "https://git.kernel.org/stable/c/63981561ffd2d4987807df4126f96a11e18b0c1d"
}
],
"title": "smb: client: fix potential UAF in smb2_is_network_name_deleted()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-35862",
"datePublished": "2024-05-19T08:34:21.173Z",
"dateReserved": "2024-05-17T13:50:33.107Z",
"dateUpdated": "2026-08-05T11:30:26.161Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2024-35862",
"date": "2026-09-22",
"epss": "0.00662",
"percentile": "0.5024"
},
"fkie_nvd": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B62CF0EC-6C39-4DAD-A6CC-C31C3277A460",
"versionEndExcluding": "6.1.85",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C520696A-A594-4FFC-A32D-12DA535CE911",
"versionEndExcluding": "6.6.26",
"versionStartIncluding": "6.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "DBD6C99E-4250-4DFE-8447-FF2075939D10",
"versionEndExcluding": "6.8.5",
"versionStartIncluding": "6.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*",
"matchCriteriaId": "22BEDD49-2C6D-402D-9DBF-6646F6ECD10B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*",
"matchCriteriaId": "DF73CB2A-DFFD-46FB-9BFE-AA394F27EA37",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix potential UAF in smb2_is_network_name_deleted()\n\nSkip sessions that are being teared down (status == SES_EXITING) to\navoid UAF."
},
{
"lang": "es",
"value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: smb: client: corrige UAF potencial en smb2_is_network_name_deleted() Omita las sesiones que se est\u00e1n eliminando (estado == SES_EXITING) para evitar UAF."
}
],
"id": "CVE-2024-35862",
"lastModified": "2024-12-30T15:00:09.317",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"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"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2024-05-19T09:15:07.797",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/63981561ffd2d4987807df4126f96a11e18b0c1d"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/aa582b33f94453fdeaff1e7d0aa252c505975e01"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/d919b6ea15ffa56fbafef4a1d92f47aeda9af645"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/f9414004798d9742c1af23a1d839fe6a9503751c"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/63981561ffd2d4987807df4126f96a11e18b0c1d"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/aa582b33f94453fdeaff1e7d0aa252c505975e01"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/d919b6ea15ffa56fbafef4a1d92f47aeda9af645"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/f9414004798d9742c1af23a1d839fe6a9503751c"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-416"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"microsoft_vex": {
"current_release_date": "2026-08-07T01:14:53.000Z",
"cve": "CVE-2024-35862",
"id": "msrc_CVE-2024-35862",
"initial_release_date": "2025-09-03T22:07:06.000Z",
"product_status:known_affected": "4",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "smb: client: fix potential UAF in smb2_is_network_name_deleted()",
"url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2024-35862.json",
"version": "4"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"fs/smb/client/smb2ops.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "f9414004798d9742c1af23a1d839fe6a9503751c",
"status": "affected",
"version": "9e550b085206544bd03a8b1dd58a5414e9508351",
"versionType": "git"
},
{
"lessThan": "aa582b33f94453fdeaff1e7d0aa252c505975e01",
"status": "affected",
"version": "9e550b085206544bd03a8b1dd58a5414e9508351",
"versionType": "git"
},
{
"lessThan": "d919b6ea15ffa56fbafef4a1d92f47aeda9af645",
"status": "affected",
"version": "9e550b085206544bd03a8b1dd58a5414e9508351",
"versionType": "git"
},
{
"lessThan": "63981561ffd2d4987807df4126f96a11e18b0c1d",
"status": "affected",
"version": "9e550b085206544bd03a8b1dd58a5414e9508351",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"fs/smb/client/smb2ops.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.12"
},
{
"lessThan": "5.12",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.85",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.26",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.8.*",
"status": "unaffected",
"version": "6.8.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.9",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "87FDB7A1-8229-4EF9-82C5-4E128DDE343F",
"versionEndExcluding": "6.1.85",
"versionStartIncluding": "5.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C520696A-A594-4FFC-A32D-12DA535CE911",
"versionEndExcluding": "6.6.26",
"versionStartIncluding": "6.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "DBD6C99E-4250-4DFE-8447-FF2075939D10",
"versionEndExcluding": "6.8.5",
"versionStartIncluding": "6.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*",
"matchCriteriaId": "22BEDD49-2C6D-402D-9DBF-6646F6ECD10B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*",
"matchCriteriaId": "DF73CB2A-DFFD-46FB-9BFE-AA394F27EA37",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix potential UAF in smb2_is_network_name_deleted()\n\nSkip sessions that are being teared down (status == SES_EXITING) to\navoid UAF."
},
{
"lang": "es",
"value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: smb: client: corrige UAF potencial en smb2_is_network_name_deleted() Omita las sesiones que se est\u00e1n eliminando (estado == SES_EXITING) para evitar UAF."
}
],
"id": "CVE-2024-35862",
"lastModified": "2026-08-04T11:18:01.543",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
},
{
"cvssData": {
"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"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-35862",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T15:41:27.598442Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-05-19T09:15:07.797",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/63981561ffd2d4987807df4126f96a11e18b0c1d"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/aa582b33f94453fdeaff1e7d0aa252c505975e01"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/d919b6ea15ffa56fbafef4a1d92f47aeda9af645"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/f9414004798d9742c1af23a1d839fe6a9503751c"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/63981561ffd2d4987807df4126f96a11e18b0c1d"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/aa582b33f94453fdeaff1e7d0aa252c505975e01"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/d919b6ea15ffa56fbafef4a1d92f47aeda9af645"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/f9414004798d9742c1af23a1d839fe6a9503751c"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-416"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-08-04T22:46:57+00:00",
"cve": "CVE-2024-35862",
"id": "CVE-2024-35862",
"initial_release_date": "2024-05-19T00:00:00+00:00",
"product_status:fixed": "280",
"product_status:known_affected": "22",
"product_status:known_not_affected": "98",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: smb: client: fix potential UAF in smb2_is_network_name_deleted()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-35862.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2026-09-05T00:43:59Z",
"cve": "CVE-2024-35862",
"id": "CVE-2024-35862",
"initial_release_date": "2024-05-21T01:59:44Z",
"product_status:known_affected": "269",
"product_status:known_not_affected": "147",
"product_status:recommended": "1133",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2024-35862",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-35862.json",
"version": "113"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T03:21:48.581Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/f9414004798d9742c1af23a1d839fe6a9503751c"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/aa582b33f94453fdeaff1e7d0aa252c505975e01"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/d919b6ea15ffa56fbafef4a1d92f47aeda9af645"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/63981561ffd2d4987807df4126f96a11e18b0c1d"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-35862",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T15:41:27.598442Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-09-11T12:42:15.938Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"fs/smb/client/smb2ops.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "f9414004798d9742c1af23a1d839fe6a9503751c",
"status": "affected",
"version": "9e550b085206544bd03a8b1dd58a5414e9508351",
"versionType": "git"
},
{
"lessThan": "aa582b33f94453fdeaff1e7d0aa252c505975e01",
"status": "affected",
"version": "9e550b085206544bd03a8b1dd58a5414e9508351",
"versionType": "git"
},
{
"lessThan": "d919b6ea15ffa56fbafef4a1d92f47aeda9af645",
"status": "affected",
"version": "9e550b085206544bd03a8b1dd58a5414e9508351",
"versionType": "git"
},
{
"lessThan": "63981561ffd2d4987807df4126f96a11e18b0c1d",
"status": "affected",
"version": "9e550b085206544bd03a8b1dd58a5414e9508351",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"fs/smb/client/smb2ops.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.12"
},
{
"lessThan": "5.12",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.85",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.26",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.8.*",
"status": "unaffected",
"version": "6.8.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.9",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.85",
"versionStartIncluding": "5.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.26",
"versionStartIncluding": "5.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.8.5",
"versionStartIncluding": "5.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.9",
"versionStartIncluding": "5.12",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix potential UAF in smb2_is_network_name_deleted()\n\nSkip sessions that are being teared down (status == SES_EXITING) to\navoid UAF."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:N - The vulnerable function is invoked by the CIFS demultiplex thread on every SMB2 response received over TCP/445, keyed entirely on server-supplied fields (`Status` and `Id.SyncId.TreeId`). A malicious SMB server, or an off-path/MITM attacker injecting into an unsigned SMB connection, triggers it purely with network data.\nAC:L - The remote peer controls both sides of the race: it forces the session teardown (failed reconnect/session setup drives `__cifs_put_smb_ses()`), and it holds the SES_EXITING window open for the full request timeout simply by not answering the SMB2 LOGOFF, while flooding STATUS_NETWORK_NAME_DELETED responses. The attempt is freely repeatable with no attacker-uncontrollable precondition.\nPR:N - The attacker is the remote SMB peer and needs no credentials or privileges on the target Linux client; the code path runs in the kernel demux thread before any signature validation of the response.\nUI:N - The attack works against an already-established mount \u2014 an fstab/autofs/systemd-automount or DFS-referral connection, or a file server compromised or MITM\u0027d after mount \u2014 and the server itself induces the session teardown, so no victim action is required.\nS:U - The use-after-free corrupts kernel slab memory within the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Use-after-free on `cifs_tcon`/`cifs_ses` gives an attacker-influenced read of freed slab contents, and `pr_warn_once(\"%s\", tcon-\u003etree_name)` walks freed heap memory into the kernel log, leaking whatever now occupies that object.\nI:H - The path writes into freed memory \u2014 `spin_lock(\u0026tcon-\u003etc_lock)` plus `tcon-\u003eneed_reconnect = true` \u2014 on an object the remote attacker selects via the controlled TreeId, giving a heap-spray-able corruption primitive leveragable for control-flow hijack.\nA:H - Dereferencing the poisoned/freed session and tcon produces a general protection fault or KASAN oops in the cifsd kernel thread (as shown in the sibling fix\u0027s trace), crashing or hanging the client with the mount unusable."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T11:30:26.161Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/f9414004798d9742c1af23a1d839fe6a9503751c"
},
{
"url": "https://git.kernel.org/stable/c/aa582b33f94453fdeaff1e7d0aa252c505975e01"
},
{
"url": "https://git.kernel.org/stable/c/d919b6ea15ffa56fbafef4a1d92f47aeda9af645"
},
{
"url": "https://git.kernel.org/stable/c/63981561ffd2d4987807df4126f96a11e18b0c1d"
}
],
"title": "smb: client: fix potential UAF in smb2_is_network_name_deleted()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-35862",
"datePublished": "2024-05-19T08:34:21.173Z",
"dateReserved": "2024-05-17T13:50:33.107Z",
"dateUpdated": "2026-08-05T11:30:26.161Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…