293 lines
15 KiB
JSON
293 lines
15 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2025-39889",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-04-16T07:20:57.145Z",
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"datePublished": "2025-09-24T11:02:51.036Z",
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"dateUpdated": "2026-08-05T12:05:55.274Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T12:05:55.274Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: l2cap: Check encryption key size on incoming connection\n\nThis is required for passing GAP/SEC/SEM/BI-04-C PTS test case:\n Security Mode 4 Level 4, Responder - Invalid Encryption Key Size\n - 128 bit\n\nThis tests the security key with size from 1 to 15 bytes while the\nSecurity Mode 4 Level 4 requests 16 bytes key size.\n\nCurrently PTS fails with the following logs:\n- expected:Connection Response:\n Code: [3 (0x03)] Code\n Identifier: (lt)WildCard: Exists(gt)\n Length: [8 (0x0008)]\n Destination CID: (lt)WildCard: Exists(gt)\n Source CID: [64 (0x0040)]\n Result: [3 (0x0003)] Connection refused - Security block\n Status: (lt)WildCard: Exists(gt),\nbut received:Connection Response:\n Code: [3 (0x03)] Code\n Identifier: [1 (0x01)]\n Length: [8 (0x0008)]\n Destination CID: [64 (0x0040)]\n Source CID: [64 (0x0040)]\n Result: [0 (0x0000)] Connection Successful\n Status: [0 (0x0000)] No further information available\n\nAnd HCI logs:\n< HCI Command: Read Encrypti.. (0x05|0x0008) plen 2\n Handle: 14 Address: 00:1B:DC:F2:24:10 (Vencer Co., Ltd.)\n> HCI Event: Command Complete (0x0e) plen 7\n Read Encryption Key Size (0x05|0x0008) ncmd 1\n Status: Success (0x00)\n Handle: 14 Address: 00:1B:DC:F2:24:10 (Vencer Co., Ltd.)\n Key size: 7\n> ACL Data RX: Handle 14 flags 0x02 dlen 12\n L2CAP: Connection Request (0x02) ident 1 len 4\n PSM: 4097 (0x1001)\n Source CID: 64\n< ACL Data TX: Handle 14 flags 0x00 dlen 16\n L2CAP: Connection Response (0x03) ident 1 len 8\n Destination CID: 64\n Source CID: 64\n Result: Connection successful (0x0000)\n Status: No further information available (0x0000)"
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
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"baseScore": 8.1,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "Bluetooth L2CAP accepts incoming connections with encryption key sizes 1-15 bytes when Security Mode 4 Level 4 requires 16 bytes. Missing l2cap_check_enc_key_size() call allows weak encryption bypass by a nearby device to eavesdrop on or modify encrypted traffic."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/bluetooth/l2cap_core.c"
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],
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"versions": [
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{
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"version": "4f911a538e089cce808a15dc3277250f4f8daef9",
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"lessThan": "ed503d340a501e414114ddc614a3aae4f6e9eae2",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "288c06973daae4637f25a0d1bdaf65fdbf8455f9",
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"lessThan": "24b2cdfc16e9bd6ab3d03b8e01c590755bd3141f",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "288c06973daae4637f25a0d1bdaf65fdbf8455f9",
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"lessThan": "c6d527bbd3d3896375079f5dbc8b7f96734a3ba5",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "288c06973daae4637f25a0d1bdaf65fdbf8455f9",
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"lessThan": "9e3114958d87ea88383cbbf38c89e04b8ea1bce5",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "288c06973daae4637f25a0d1bdaf65fdbf8455f9",
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"lessThan": "d49798ecd26e0ee7995a7fc1e90ca5cd9b4402d6",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "288c06973daae4637f25a0d1bdaf65fdbf8455f9",
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"lessThan": "d4ca2fd218caafbf50e3343ba1260c6a23b5676a",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "288c06973daae4637f25a0d1bdaf65fdbf8455f9",
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"lessThan": "522e9ed157e3c21b4dd623c79967f72c21e45b78",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/bluetooth/l2cap_core.c"
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],
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"versions": [
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{
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"version": "5.11",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "5.11",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.181",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.135",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.88",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.25",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.14.4",
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"lessThanOrEqual": "6.14.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.15",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.11",
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"versionEndExcluding": "5.15.181"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.11",
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"versionEndExcluding": "6.1.135"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.11",
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"versionEndExcluding": "6.6.88"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.11",
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"versionEndExcluding": "6.12.25"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.11",
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"versionEndExcluding": "6.14.4"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.11",
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"versionEndExcluding": "6.15"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/ed503d340a501e414114ddc614a3aae4f6e9eae2"
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},
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{
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"url": "https://git.kernel.org/stable/c/24b2cdfc16e9bd6ab3d03b8e01c590755bd3141f"
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},
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{
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"url": "https://git.kernel.org/stable/c/c6d527bbd3d3896375079f5dbc8b7f96734a3ba5"
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},
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{
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"url": "https://git.kernel.org/stable/c/9e3114958d87ea88383cbbf38c89e04b8ea1bce5"
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},
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{
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"url": "https://git.kernel.org/stable/c/d49798ecd26e0ee7995a7fc1e90ca5cd9b4402d6"
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},
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{
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"url": "https://git.kernel.org/stable/c/d4ca2fd218caafbf50e3343ba1260c6a23b5676a"
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},
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{
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"url": "https://git.kernel.org/stable/c/522e9ed157e3c21b4dd623c79967f72c21e45b78"
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}
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],
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"title": "Bluetooth: l2cap: Check encryption key size on incoming connection",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"problemTypes": [
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{
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"descriptions": [
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{
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"type": "CWE",
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"cweId": "CWE-326",
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"lang": "en",
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"description": "CWE-326 Inadequate Encryption Strength"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 5.5,
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"attackVector": "LOCAL",
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "NONE"
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}
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},
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-01-14T17:37:06.505788Z",
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"id": "CVE-2025-39889",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-01-14T17:37:26.762Z"
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}
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}
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]
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}
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} |