CVE-2023-53374 (GCVE-0-2023-53374)
Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2026-08-05 09:13
VLAI
EPSS
VEX
Title
Bluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early
Summary
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early
Not calling hci_(dis)connect_cfm before deleting conn referred to by a
socket generally results to use-after-free.
When cleaning up SCO connections when the parent ACL is deleted too
early, use hci_conn_failed to do the connection cleanup properly.
We also need to clean up ISO connections in a similar situation when
connecting has started but LE Create CIS is not yet sent, so do it too
here.
Severity
8.8 (High)
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:54 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f , < 397d58007532644b35fad746da48c41161f32a57
(git)
Affected: ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f , < e94b898463a62b72a2a8b75dea8936bf4db78e00 (git) Affected: ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f , < 3344d318337d9dca928fd448e966557ec5063f85 (git) Affected: 75e35bd4b7935ceed2aacd82f55940e73bf0b63b (git) Affected: 6.3.8 , < 6.4 (semver) |
guessed | |
| Linux | Linux |
Affected:
6.4
Unaffected: 0 , < 6.4 (semver) Unaffected: 6.4.16 , ≤ 6.4.* (semver) Unaffected: 6.5.3 , ≤ 6.5.* (semver) Unaffected: 6.6 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"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"
}
},
{
"other": {
"content": {
"id": "CVE-2023-53374",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-14T18:54:25.271043Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-01-14T19:03:03.307Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/bluetooth/hci_conn.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "397d58007532644b35fad746da48c41161f32a57",
"status": "affected",
"version": "ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f",
"versionType": "git"
},
{
"lessThan": "e94b898463a62b72a2a8b75dea8936bf4db78e00",
"status": "affected",
"version": "ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f",
"versionType": "git"
},
{
"lessThan": "3344d318337d9dca928fd448e966557ec5063f85",
"status": "affected",
"version": "ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f",
"versionType": "git"
},
{
"status": "affected",
"version": "75e35bd4b7935ceed2aacd82f55940e73bf0b63b",
"versionType": "git"
},
{
"lessThan": "6.4",
"status": "affected",
"version": "6.3.8",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/bluetooth/hci_conn.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.4"
},
{
"lessThan": "6.4",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.4.*",
"status": "unaffected",
"version": "6.4.16",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.5.*",
"status": "unaffected",
"version": "6.5.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.6",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.4.16",
"versionStartIncluding": "6.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.5.3",
"versionStartIncluding": "6.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6",
"versionStartIncluding": "6.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.3.8",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early\n\nNot calling hci_(dis)connect_cfm before deleting conn referred to by a\nsocket generally results to use-after-free.\n\nWhen cleaning up SCO connections when the parent ACL is deleted too\nearly, use hci_conn_failed to do the connection cleanup properly.\n\nWe also need to clean up ISO connections in a similar situation when\nconnecting has started but LE Create CIS is not yet sent, so do it too\nhere."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:A - The bug is in Bluetooth HCI connection teardown for SCO/ISO children; an in-range peer can drop the parent ACL (HCI disconnect / link loss) while SCO or ISO setup still has an unset handle, which is the Adjacent Bluetooth deployment model for phones and headsets.\nAC:L - The attacker controls both sides of the timing window by initiating or observing SCO/ISO setup and then aborting the parent ACL before the child handle is assigned; syzbot reproduced this reliably, and UAF bugs are AC:L unless a truly uncontrollable race is required.\nPR:N - An adjacent Bluetooth peer triggers the vulnerable hci_conn_unlink child cleanup via over-the-air ACL teardown with no local account or capability on the victim; the dangling socket reference is held by ordinary Bluetooth audio stacks already running on the device.\nUI:N - Once Bluetooth is up with a SCO/ISO path in progress (headset/HFP/LE Audio), the peer\u2019s own disconnect drives the free without requiring the victim to open a file, mount anything, or otherwise interact at exploit time.\nS:U - The use-after-free corrupts kernel heap within the same host kernel authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - This is a slab use-after-free of the hci_conn object still referenced by the SCO socket; UAF enables attacker control of freed object contents and arbitrary kernel read primitives.\nI:H - KASAN confirmed a slab-use-after-free write in sco_chan_del via hci_conn_drop/atomic_dec_and_test on the freed hci_conn, which is exploitable for heap corruption and control-flow hijacking.\nA:H - The UAF causes kernel oops/panic under normal close/teardown even when not fully exploited, matching High availability impact for use-after-free bugs."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T09:13:43.036Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/397d58007532644b35fad746da48c41161f32a57"
},
{
"url": "https://git.kernel.org/stable/c/e94b898463a62b72a2a8b75dea8936bf4db78e00"
},
{
"url": "https://git.kernel.org/stable/c/3344d318337d9dca928fd448e966557ec5063f85"
}
],
"title": "Bluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2023-53374",
"datePublished": "2025-09-18T13:33:20.965Z",
"dateReserved": "2025-09-17T14:54:09.734Z",
"dateUpdated": "2026-08-05T09:13:43.036Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2023-53374",
"date": "2026-09-16",
"epss": "0.00211",
"percentile": "0.11599"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2023-53374\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-18T14:15:40.037\",\"lastModified\":\"2026-08-04T10:19:03.933\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early\\n\\nNot calling hci_(dis)connect_cfm before deleting conn referred to by a\\nsocket generally results to use-after-free.\\n\\nWhen cleaning up SCO connections when the parent ACL is deleted too\\nearly, use hci_conn_failed to do the connection cleanup properly.\\n\\nWe also need to clean up ISO connections in a similar situation when\\nconnecting has started but LE Create CIS is not yet sent, so do it too\\nhere.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/bluetooth/hci_conn.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f\",\"lessThan\":\"397d58007532644b35fad746da48c41161f32a57\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f\",\"lessThan\":\"e94b898463a62b72a2a8b75dea8936bf4db78e00\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f\",\"lessThan\":\"3344d318337d9dca928fd448e966557ec5063f85\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"75e35bd4b7935ceed2aacd82f55940e73bf0b63b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6.3.8\",\"lessThan\":\"6.4\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/bluetooth/hci_conn.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.4\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.4\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.4.16\",\"lessThanOrEqual\":\"6.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.5.3\",\"lessThanOrEqual\":\"6.5.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-01-14T18:54:25.271043Z\",\"id\":\"CVE-2023-53374\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.3.8\",\"versionEndExcluding\":\"6.4\",\"matchCriteriaId\":\"ABD3DF6E-5007-4ECB-916A-53AF3ED413B6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.4.1\",\"versionEndExcluding\":\"6.4.16\",\"matchCriteriaId\":\"A73F035C-0DD2-4D62-BFB6-2EB34C5A036F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.5\",\"versionEndExcluding\":\"6.5.3\",\"matchCriteriaId\":\"880C803A-BEAE-4DA0-8A59-AC023F7B4EE3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.4:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"DE0B0BF6-0EEF-4FAD-927D-7A0DD77BEE75\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.4:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"89CC80C6-F1EE-4AC7-BD21-DB3217BADE87\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.4:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"41EACEA1-FB69-4AF2-BC52-D39489858D42\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.4:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"9E1C36BE-F9D8-40B6-8281-5B8F9B42322D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.4:rc7:*:*:*:*:*:*\",\"matchCriteriaId\":\"1D6CAA59-F0EF-4E0B-8C23-EC9535008572\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3344d318337d9dca928fd448e966557ec5063f85\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/397d58007532644b35fad746da48c41161f32a57\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e94b898463a62b72a2a8b75dea8936bf4db78e00\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-29T22:19:50+00:00",
"cve": "CVE-2023-53374",
"id": "CVE-2023-53374",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:known_not_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: Bluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53374.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-11T16:47:21Z",
"cve": "CVE-2023-53374",
"id": "CVE-2023-53374",
"initial_release_date": "2025-09-19T23:34:27Z",
"product_status:known_affected": "394",
"product_status:known_not_affected": "393",
"product_status:recommended": "310",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2023-53374",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53374.json",
"version": "49"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-53374\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-14T18:54:25.271043Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-14T18:54:21.383Z\"}}], \"cna\": {\"title\": \"Bluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f\", \"lessThan\": \"397d58007532644b35fad746da48c41161f32a57\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f\", \"lessThan\": \"e94b898463a62b72a2a8b75dea8936bf4db78e00\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f\", \"lessThan\": \"3344d318337d9dca928fd448e966557ec5063f85\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"75e35bd4b7935ceed2aacd82f55940e73bf0b63b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6.3.8\", \"lessThan\": \"6.4\", \"versionType\": \"semver\"}], \"programFiles\": [\"net/bluetooth/hci_conn.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.4\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.4\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.4.16\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.4.*\"}, {\"status\": \"unaffected\", \"version\": \"6.5.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.5.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/bluetooth/hci_conn.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/397d58007532644b35fad746da48c41161f32a57\"}, {\"url\": \"https://git.kernel.org/stable/c/e94b898463a62b72a2a8b75dea8936bf4db78e00\"}, {\"url\": \"https://git.kernel.org/stable/c/3344d318337d9dca928fd448e966557ec5063f85\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early\\n\\nNot calling hci_(dis)connect_cfm before deleting conn referred to by a\\nsocket generally results to use-after-free.\\n\\nWhen cleaning up SCO connections when the parent ACL is deleted too\\nearly, use hci_conn_failed to do the connection cleanup properly.\\n\\nWe also need to clean up ISO connections in a similar situation when\\nconnecting has started but LE Create CIS is not yet sent, so do it too\\nhere.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.4.16\", \"versionStartIncluding\": \"6.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.5.3\", \"versionStartIncluding\": \"6.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6\", \"versionStartIncluding\": \"6.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"6.3.8\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-23T15:28:37.982Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2023-53374\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-23T15:28:37.982Z\", \"dateReserved\": \"2025-09-17T14:54:09.734Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-18T13:33:20.965Z\", \"assignerShortName\": \"Linux\"}",
"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…
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…