CVE-2024-27404 (GCVE-0-2024-27404)
Vulnerability from cvelistv5 – Published: 2024-05-17 11:40 – Updated: 2026-08-05 11:29
VLAI
EPSS
VEX
Title
mptcp: fix data races on remote_id
Summary
In the Linux kernel, the following vulnerability has been resolved:
mptcp: fix data races on remote_id
Similar to the previous patch, address the data race on
remote_id, adding the suitable ONCE annotations.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-17 17:39 UTC
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
bedee0b561138346967cf1443f2afd1b48b3148f , < e64148635509bf13eea851986f5a0b150e5bd066
(git)
Affected: bedee0b561138346967cf1443f2afd1b48b3148f , < 2dba5774e8ed326a78ad4339d921a4291281ea6e (git) Affected: bedee0b561138346967cf1443f2afd1b48b3148f , < 987c3ed7297e5661bc7f448f06fc366e497ac9b2 (git) Affected: bedee0b561138346967cf1443f2afd1b48b3148f , < 967d3c27127e71a10ff5c083583a038606431b61 (git) |
guessed | |
| Linux | Linux |
Affected:
6.0
Unaffected: 0 , < 6.0 (semver) Unaffected: 6.1.81 , ≤ 6.1.* (semver) Unaffected: 6.6.19 , ≤ 6.6.* (semver) Unaffected: 6.7.7 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-27404",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-06-17T17:39:39.256806Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-06-17T17:43:55.610Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-02T00:34:52.192Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/e64148635509bf13eea851986f5a0b150e5bd066"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/2dba5774e8ed326a78ad4339d921a4291281ea6e"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/987c3ed7297e5661bc7f448f06fc366e497ac9b2"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/967d3c27127e71a10ff5c083583a038606431b61"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/mptcp/pm_netlink.c",
"net/mptcp/subflow.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "e64148635509bf13eea851986f5a0b150e5bd066",
"status": "affected",
"version": "bedee0b561138346967cf1443f2afd1b48b3148f",
"versionType": "git"
},
{
"lessThan": "2dba5774e8ed326a78ad4339d921a4291281ea6e",
"status": "affected",
"version": "bedee0b561138346967cf1443f2afd1b48b3148f",
"versionType": "git"
},
{
"lessThan": "987c3ed7297e5661bc7f448f06fc366e497ac9b2",
"status": "affected",
"version": "bedee0b561138346967cf1443f2afd1b48b3148f",
"versionType": "git"
},
{
"lessThan": "967d3c27127e71a10ff5c083583a038606431b61",
"status": "affected",
"version": "bedee0b561138346967cf1443f2afd1b48b3148f",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/mptcp/pm_netlink.c",
"net/mptcp/subflow.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.0"
},
{
"lessThan": "6.0",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.81",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.19",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"version": "6.7.7",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.8",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.81",
"versionStartIncluding": "6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.19",
"versionStartIncluding": "6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.7.7",
"versionStartIncluding": "6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.8",
"versionStartIncluding": "6.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix data races on remote_id\n\nSimilar to the previous patch, address the data race on\nremote_id, adding the suitable ONCE annotations."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 8.2,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:N - Both sides of the race are driven by remote MPTCP protocol data \u2014 the peer\u0027s MP_JOIN SYN-ACK writes `remote_id` from softirq via `subflow_finish_connect()`, while the peer\u0027s RM_ADDR/ADD_ADDR options drive the concurrent path-manager reads in `mptcp_pm_nl_rm_addr_or_subflow()` and `fill_remote_addresses_vec()`. No local access is needed.\nAC:L - The remote peer controls both racing sides and their timing: it chooses when to emit the MP_JOIN SYN-ACK carrying `join_id` and when to send RM_ADDR/ADD_ADDR that schedules the PM worker, and it can repeat this across many subflows and connections until the window is hit.\nPR:N - An MPTCP-enabled listening service accepts connections from any unauthenticated remote peer, and subflow creation plus ADD_ADDR/RM_ADDR signalling occur as part of normal protocol operation with no credentials required.\nUI:N - The MPTCP option exchange and path-manager subflow handling happen automatically inside the kernel once a connection is accepted; no local user action is involved.\nS:U - The unsynchronized access and all resulting effects are confined to the kernel networking stack\u0027s own security authority, with no crossing of a VM, IOMMU, or sandbox boundary.\nC:N - `remote_id` is a u8 that is never used as an array index or pointer, and the only value exposed is the peer\u0027s own address ID via diag/netlink; no kernel memory contents are disclosed.\nI:L - Inconsistent reads let the path manager act on a wrong subflow identity \u2014 bypassing the `deny_id0` join restriction in `fill_remote_addresses_vec()` and underflowing the u8 `pm.add_addr_accepted`/`pm.local_addr_used` counters \u2014 which is limited, non-arbitrary modification of kernel connection state.\nA:H - A mismatched `remote_id` compare in `mptcp_pm_nl_rm_addr_or_subflow()` causes `mptcp_subflow_shutdown()` and `mptcp_close_ssk()` to tear down subflows the peer did not ask to remove \u2014 potentially the last remaining one, collapsing the MPTCP connection \u2014 and this is remotely and repeatably triggerable without authentication."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T11:29:36.752Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/e64148635509bf13eea851986f5a0b150e5bd066"
},
{
"url": "https://git.kernel.org/stable/c/2dba5774e8ed326a78ad4339d921a4291281ea6e"
},
{
"url": "https://git.kernel.org/stable/c/987c3ed7297e5661bc7f448f06fc366e497ac9b2"
},
{
"url": "https://git.kernel.org/stable/c/967d3c27127e71a10ff5c083583a038606431b61"
}
],
"title": "mptcp: fix data races on remote_id",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-27404",
"datePublished": "2024-05-17T11:40:21.607Z",
"dateReserved": "2024-02-25T13:47:42.681Z",
"dateUpdated": "2026-08-05T11:29:36.752Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2024-27404",
"date": "2026-09-26",
"epss": "0.00416",
"percentile": "0.33339"
},
"fkie_nvd": {
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix data races on remote_id\n\nSimilar to the previous patch, address the data race on\nremote_id, adding the suitable ONCE annotations."
},
{
"lang": "es",
"value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mptcp: corrige carreras de datos en remote_id Similar al parche anterior, aborda la carrera de datos en remote_id, agregando las anotaciones ONCE adecuadas."
}
],
"id": "CVE-2024-27404",
"lastModified": "2024-11-21T09:04:32.840",
"published": "2024-05-17T12:15:10.287",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/2dba5774e8ed326a78ad4339d921a4291281ea6e"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/967d3c27127e71a10ff5c083583a038606431b61"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/987c3ed7297e5661bc7f448f06fc366e497ac9b2"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/e64148635509bf13eea851986f5a0b150e5bd066"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/2dba5774e8ed326a78ad4339d921a4291281ea6e"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/967d3c27127e71a10ff5c083583a038606431b61"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/987c3ed7297e5661bc7f448f06fc366e497ac9b2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/e64148635509bf13eea851986f5a0b150e5bd066"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/mptcp/pm_netlink.c",
"net/mptcp/subflow.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "e64148635509bf13eea851986f5a0b150e5bd066",
"status": "affected",
"version": "bedee0b561138346967cf1443f2afd1b48b3148f",
"versionType": "git"
},
{
"lessThan": "2dba5774e8ed326a78ad4339d921a4291281ea6e",
"status": "affected",
"version": "bedee0b561138346967cf1443f2afd1b48b3148f",
"versionType": "git"
},
{
"lessThan": "987c3ed7297e5661bc7f448f06fc366e497ac9b2",
"status": "affected",
"version": "bedee0b561138346967cf1443f2afd1b48b3148f",
"versionType": "git"
},
{
"lessThan": "967d3c27127e71a10ff5c083583a038606431b61",
"status": "affected",
"version": "bedee0b561138346967cf1443f2afd1b48b3148f",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/mptcp/pm_netlink.c",
"net/mptcp/subflow.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.0"
},
{
"lessThan": "6.0",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.81",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.19",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"version": "6.7.7",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.8",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "89A51AC3-83B4-4F44-B496-385D10612456",
"versionEndExcluding": "6.1.81",
"versionStartIncluding": "6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "8D82004C-B2AE-4048-9344-32EFF65953B0",
"versionEndExcluding": "6.6.19",
"versionStartIncluding": "6.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "575EE16B-67F2-4B5B-B5F8-1877715C898B",
"versionEndExcluding": "6.7.7",
"versionStartIncluding": "6.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*",
"matchCriteriaId": "B9F4EA73-0894-400F-A490-3A397AB7A517",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*",
"matchCriteriaId": "056BD938-0A27-4569-B391-30578B309EE3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:*",
"matchCriteriaId": "F02056A5-B362-4370-9FF8-6F0BD384D520",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc4:*:*:*:*:*:*",
"matchCriteriaId": "62075ACE-B2A0-4B16-829D-B3DA5AE5CC41",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc5:*:*:*:*:*:*",
"matchCriteriaId": "A780F817-2A77-4130-A9B7-5C25606314E3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix data races on remote_id\n\nSimilar to the previous patch, address the data race on\nremote_id, adding the suitable ONCE annotations."
},
{
"lang": "es",
"value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mptcp: corrige carreras de datos en remote_id Similar al parche anterior, aborda la carrera de datos en remote_id, agregando las anotaciones ONCE adecuadas."
}
],
"id": "CVE-2024-27404",
"lastModified": "2026-08-04T11:17:46.483",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 4.2,
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.0,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-27404",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-06-17T17:39:39.256806Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-05-17T12:15:10.287",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/2dba5774e8ed326a78ad4339d921a4291281ea6e"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/967d3c27127e71a10ff5c083583a038606431b61"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/987c3ed7297e5661bc7f448f06fc366e497ac9b2"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/e64148635509bf13eea851986f5a0b150e5bd066"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/2dba5774e8ed326a78ad4339d921a4291281ea6e"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/967d3c27127e71a10ff5c083583a038606431b61"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/987c3ed7297e5661bc7f448f06fc366e497ac9b2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/e64148635509bf13eea851986f5a0b150e5bd066"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-362"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-08-04T19:06:17+00:00",
"cve": "CVE-2024-27404",
"id": "CVE-2024-27404",
"initial_release_date": "2024-05-17T00:00:00+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: mptcp: fix data races on remote_id",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-27404.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-03T00:25:21Z",
"cve": "CVE-2024-27404",
"id": "CVE-2024-27404",
"initial_release_date": "2024-05-18T02:46:19Z",
"product_status:known_affected": "394",
"product_status:known_not_affected": "374",
"product_status:recommended": "353",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2024-27404",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-27404.json",
"version": "81"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T00:34:52.192Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/e64148635509bf13eea851986f5a0b150e5bd066"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/2dba5774e8ed326a78ad4339d921a4291281ea6e"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/987c3ed7297e5661bc7f448f06fc366e497ac9b2"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/967d3c27127e71a10ff5c083583a038606431b61"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-27404",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-06-17T17:39:39.256806Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-06-17T17:39:40.580Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/mptcp/pm_netlink.c",
"net/mptcp/subflow.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "e64148635509bf13eea851986f5a0b150e5bd066",
"status": "affected",
"version": "bedee0b561138346967cf1443f2afd1b48b3148f",
"versionType": "git"
},
{
"lessThan": "2dba5774e8ed326a78ad4339d921a4291281ea6e",
"status": "affected",
"version": "bedee0b561138346967cf1443f2afd1b48b3148f",
"versionType": "git"
},
{
"lessThan": "987c3ed7297e5661bc7f448f06fc366e497ac9b2",
"status": "affected",
"version": "bedee0b561138346967cf1443f2afd1b48b3148f",
"versionType": "git"
},
{
"lessThan": "967d3c27127e71a10ff5c083583a038606431b61",
"status": "affected",
"version": "bedee0b561138346967cf1443f2afd1b48b3148f",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/mptcp/pm_netlink.c",
"net/mptcp/subflow.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.0"
},
{
"lessThan": "6.0",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.81",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.19",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"version": "6.7.7",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.8",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.81",
"versionStartIncluding": "6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.19",
"versionStartIncluding": "6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.7.7",
"versionStartIncluding": "6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.8",
"versionStartIncluding": "6.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix data races on remote_id\n\nSimilar to the previous patch, address the data race on\nremote_id, adding the suitable ONCE annotations."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 8.2,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:N - Both sides of the race are driven by remote MPTCP protocol data \u2014 the peer\u0027s MP_JOIN SYN-ACK writes `remote_id` from softirq via `subflow_finish_connect()`, while the peer\u0027s RM_ADDR/ADD_ADDR options drive the concurrent path-manager reads in `mptcp_pm_nl_rm_addr_or_subflow()` and `fill_remote_addresses_vec()`. No local access is needed.\nAC:L - The remote peer controls both racing sides and their timing: it chooses when to emit the MP_JOIN SYN-ACK carrying `join_id` and when to send RM_ADDR/ADD_ADDR that schedules the PM worker, and it can repeat this across many subflows and connections until the window is hit.\nPR:N - An MPTCP-enabled listening service accepts connections from any unauthenticated remote peer, and subflow creation plus ADD_ADDR/RM_ADDR signalling occur as part of normal protocol operation with no credentials required.\nUI:N - The MPTCP option exchange and path-manager subflow handling happen automatically inside the kernel once a connection is accepted; no local user action is involved.\nS:U - The unsynchronized access and all resulting effects are confined to the kernel networking stack\u0027s own security authority, with no crossing of a VM, IOMMU, or sandbox boundary.\nC:N - `remote_id` is a u8 that is never used as an array index or pointer, and the only value exposed is the peer\u0027s own address ID via diag/netlink; no kernel memory contents are disclosed.\nI:L - Inconsistent reads let the path manager act on a wrong subflow identity \u2014 bypassing the `deny_id0` join restriction in `fill_remote_addresses_vec()` and underflowing the u8 `pm.add_addr_accepted`/`pm.local_addr_used` counters \u2014 which is limited, non-arbitrary modification of kernel connection state.\nA:H - A mismatched `remote_id` compare in `mptcp_pm_nl_rm_addr_or_subflow()` causes `mptcp_subflow_shutdown()` and `mptcp_close_ssk()` to tear down subflows the peer did not ask to remove \u2014 potentially the last remaining one, collapsing the MPTCP connection \u2014 and this is remotely and repeatably triggerable without authentication."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T11:29:36.752Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/e64148635509bf13eea851986f5a0b150e5bd066"
},
{
"url": "https://git.kernel.org/stable/c/2dba5774e8ed326a78ad4339d921a4291281ea6e"
},
{
"url": "https://git.kernel.org/stable/c/987c3ed7297e5661bc7f448f06fc366e497ac9b2"
},
{
"url": "https://git.kernel.org/stable/c/967d3c27127e71a10ff5c083583a038606431b61"
}
],
"title": "mptcp: fix data races on remote_id",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-27404",
"datePublished": "2024-05-17T11:40:21.607Z",
"dateReserved": "2024-02-25T13:47:42.681Z",
"dateUpdated": "2026-08-05T11:29:36.752Z",
"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…