CVE-2022-48947 (GCVE-0-2022-48947)

Vulnerability from cvelistv5 – Published: 2024-10-21 20:05 – Updated: 2026-05-11 18:50
VLAI?
Title
Bluetooth: L2CAP: Fix u8 overflow
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix u8 overflow By keep sending L2CAP_CONF_REQ packets, chan->num_conf_rsp increases multiple times and eventually it will wrap around the maximum number (i.e., 255). This patch prevents this by adding a boundary check with L2CAP_MAX_CONF_RSP Btmon log: Bluetooth monitor ver 5.64 = Note: Linux version 6.1.0-rc2 (x86_64) 0.264594 = Note: Bluetooth subsystem version 2.22 0.264636 @ MGMT Open: btmon (privileged) version 1.22 {0x0001} 0.272191 = New Index: 00:00:00:00:00:00 (Primary,Virtual,hci0) [hci0] 13.877604 @ RAW Open: 9496 (privileged) version 2.22 {0x0002} 13.890741 = Open Index: 00:00:00:00:00:00 [hci0] 13.900426 (...) > ACL Data RX: Handle 200 flags 0x00 dlen 1033 #32 [hci0] 14.273106 invalid packet size (12 != 1033) 08 00 01 00 02 01 04 00 01 10 ff ff ............ > ACL Data RX: Handle 200 flags 0x00 dlen 1547 #33 [hci0] 14.273561 invalid packet size (14 != 1547) 0a 00 01 00 04 01 06 00 40 00 00 00 00 00 ........@..... > ACL Data RX: Handle 200 flags 0x00 dlen 2061 #34 [hci0] 14.274390 invalid packet size (16 != 2061) 0c 00 01 00 04 01 08 00 40 00 00 00 00 00 00 04 ........@....... > ACL Data RX: Handle 200 flags 0x00 dlen 2061 #35 [hci0] 14.274932 invalid packet size (16 != 2061) 0c 00 01 00 04 01 08 00 40 00 00 00 07 00 03 00 ........@....... = bluetoothd: Bluetooth daemon 5.43 14.401828 > ACL Data RX: Handle 200 flags 0x00 dlen 1033 #36 [hci0] 14.275753 invalid packet size (12 != 1033) 08 00 01 00 04 01 04 00 40 00 00 00 ........@...
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: f2fcfcd670257236ebf2088bbdf26f6a8ef459fe , < 49d5867819ab7c744852b45509e8469839c07e0e (git)
Affected: f2fcfcd670257236ebf2088bbdf26f6a8ef459fe , < 95f1847a361c7b4bf7d74c06ecb6968455082c1a (git)
Affected: f2fcfcd670257236ebf2088bbdf26f6a8ef459fe , < ad528fde0702903208d0a79d88d5a42ae3fc235b (git)
Affected: f2fcfcd670257236ebf2088bbdf26f6a8ef459fe , < 9fdc79b571434af7bc742da40a3405f038b637a7 (git)
Affected: f2fcfcd670257236ebf2088bbdf26f6a8ef459fe , < f3fe6817156a2ad4b06f01afab04638a34d7c9a6 (git)
Affected: f2fcfcd670257236ebf2088bbdf26f6a8ef459fe , < 19a78143961a197de8502f4f29c453b913dc3c29 (git)
Affected: f2fcfcd670257236ebf2088bbdf26f6a8ef459fe , < 5550bbf709c323194881737fd290c4bada9e6ead (git)
Affected: f2fcfcd670257236ebf2088bbdf26f6a8ef459fe , < bcd70260ef56e0aee8a4fc6cd214a419900b0765 (git)
Create a notification for this product.
Linux Linux Affected: 2.6.32
Unaffected: 0 , < 2.6.32 (semver)
Unaffected: 4.9.337 , ≤ 4.9.* (semver)
Unaffected: 4.14.303 , ≤ 4.14.* (semver)
Unaffected: 4.19.270 , ≤ 4.19.* (semver)
Unaffected: 5.4.229 , ≤ 5.4.* (semver)
Unaffected: 5.10.161 , ≤ 5.10.* (semver)
Unaffected: 5.15.85 , ≤ 5.15.* (semver)
Unaffected: 6.0.15 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: L2CAP: Fix u8 overflow\\n\\nBy keep sending L2CAP_CONF_REQ packets, chan-\u003enum_conf_rsp increases\\nmultiple times and eventually it will wrap around the maximum number\\n(i.e., 255).\\nThis patch prevents this by adding a boundary check with\\nL2CAP_MAX_CONF_RSP\\n\\nBtmon log:\\nBluetooth monitor ver 5.64\\n= Note: Linux version 6.1.0-rc2 (x86_64)                               0.264594\\n= Note: Bluetooth subsystem version 2.22                               0.264636\\n@ MGMT Open: btmon (privileged) version 1.22                  {0x0001} 0.272191\\n= New Index: 00:00:00:00:00:00 (Primary,Virtual,hci0)          [hci0] 13.877604\\n@ RAW Open: 9496 (privileged) version 2.22                   {0x0002} 13.890741\\n= Open Index: 00:00:00:00:00:00                                [hci0] 13.900426\\n(...)\\n\u003e ACL Data RX: Handle 200 flags 0x00 dlen 1033             #32 [hci0] 14.273106\\n        invalid packet size (12 != 1033)\\n        08 00 01 00 02 01 04 00 01 10 ff ff              ............\\n\u003e ACL Data RX: Handle 200 flags 0x00 dlen 1547             #33 [hci0] 14.273561\\n        invalid packet size (14 != 1547)\\n        0a 00 01 00 04 01 06 00 40 00 00 00 00 00        ........@.....\\n\u003e ACL Data RX: Handle 200 flags 0x00 dlen 2061             #34 [hci0] 14.274390\\n        invalid packet size (16 != 2061)\\n        0c 00 01 00 04 01 08 00 40 00 00 00 00 00 00 04  ........@.......\\n\u003e ACL Data RX: Handle 200 flags 0x00 dlen 2061             #35 [hci0] 14.274932\\n        invalid packet size (16 != 2061)\\n        0c 00 01 00 04 01 08 00 40 00 00 00 07 00 03 00  ........@.......\\n= bluetoothd: Bluetooth daemon 5.43                                   14.401828\\n\u003e ACL Data RX: Handle 200 flags 0x00 dlen 1033             #36 [hci0] 14.275753\\n        invalid packet size (12 != 1033)\\n        08 00 01 00 04 01 04 00 40 00 00 00              ........@...\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: L2CAP: Corregir desbordamiento de u8 Al seguir enviando paquetes L2CAP_CONF_REQ, chan-\u0026gt;num_conf_rsp aumenta varias veces y eventualmente alcanzar\\u00e1 el n\\u00famero m\\u00e1ximo (es decir, 255). Este parche evita esto a\\u00f1adiendo una comprobaci\\u00f3n de los l\\u00edmites con L2CAP_MAX_CONF_RSP Btmon log: Bluetooth monitor ver 5.64 = Nota: Linux versi\\u00f3n 6.1.0-rc2 (x86_64) 0.264594 = Nota: Subsistema Bluetooth versi\\u00f3n 2.22 0.264636 @ MGMT Open: btmon (privilegiado) versi\\u00f3n 1.22 {0x0001} 0.272191 = Nuevo \\u00edndice: 00:00:00:00:00:00 (Principal,Virtual,hci0) [hci0] 13.877604 @ RAW Open: 9496 (privilegiado) versi\\u00f3n 2.22 {0x0002} 13.890741 = Abierto \\u00cdndice: 00:00:00:00:00:00 [hci0] 13.900426 (...) \u0026gt; ACL Data RX: Manejar 200 indicadores 0x00 dlen 1033 #32 [hci0] 14.273106 tama\\u00f1o de paquete no v\\u00e1lido (12 != 1033) 08 00 01 00 02 01 04 00 01 10 ff ff ............ \u0026gt; ACL Data RX: Manejar 200 indicadores 0x00 dlen 1547 #33 [hci0] 14.273561 tama\\u00f1o de paquete no v\\u00e1lido (14 != 1547) 0a 00 01 00 04 01 06 00 40 00 00 00 00 00 ........@..... \u0026gt; ACL Data RX: Manejar 200 indicadores 0x00 dlen 2061 #34 [hci0] 14.274390 tama\\u00f1o de paquete no v\\u00e1lido (16 != 2061) 0c 00 01 00 04 01 08 00 40 00 00 00 00 00 00 04 ........@....... \u0026gt; ACL Data RX: Manejar 200 indicadores 0x00 dlen 2061 #35 [hci0] 14.274932 tama\\u00f1o de paquete no v\\u00e1lido (16 != 2061) 0c 00 01 00 04 01 08 00 40 00 00 00 07 00 03 00 ........@....... = bluetoothd: Daemon Bluetooth 5.43 14.401828 \u0026gt; ACL Data RX: Manejar 200 indicadores 0x00 dlen 1033 #36 [hci0] 14.275753 tama\\u00f1o de paquete no v\\u00e1lido (12 != 1033) 08 00 01 00 04 01 04 00 40 00 00 00 ........@...\"}]",
      "id": "CVE-2022-48947",
      "lastModified": "2024-10-25T20:11:45.473",
      "metrics": "{\"cvssMetricV31\": [{\"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:N/I:N/A:H\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 3.6}]}",
      "published": "2024-10-21T20:15:06.150",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/19a78143961a197de8502f4f29c453b913dc3c29\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/49d5867819ab7c744852b45509e8469839c07e0e\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/5550bbf709c323194881737fd290c4bada9e6ead\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/95f1847a361c7b4bf7d74c06ecb6968455082c1a\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/9fdc79b571434af7bc742da40a3405f038b637a7\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/ad528fde0702903208d0a79d88d5a42ae3fc235b\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/bcd70260ef56e0aee8a4fc6cd214a419900b0765\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/f3fe6817156a2ad4b06f01afab04638a34d7c9a6\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Analyzed",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-190\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-48947\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-10-21T20:15:06.150\",\"lastModified\":\"2024-10-25T20:11:45.473\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: L2CAP: Fix u8 overflow\\n\\nBy keep sending L2CAP_CONF_REQ packets, chan-\u003enum_conf_rsp increases\\nmultiple times and eventually it will wrap around the maximum number\\n(i.e., 255).\\nThis patch prevents this by adding a boundary check with\\nL2CAP_MAX_CONF_RSP\\n\\nBtmon log:\\nBluetooth monitor ver 5.64\\n= Note: Linux version 6.1.0-rc2 (x86_64)                               0.264594\\n= Note: Bluetooth subsystem version 2.22                               0.264636\\n@ MGMT Open: btmon (privileged) version 1.22                  {0x0001} 0.272191\\n= New Index: 00:00:00:00:00:00 (Primary,Virtual,hci0)          [hci0] 13.877604\\n@ RAW Open: 9496 (privileged) version 2.22                   {0x0002} 13.890741\\n= Open Index: 00:00:00:00:00:00                                [hci0] 13.900426\\n(...)\\n\u003e ACL Data RX: Handle 200 flags 0x00 dlen 1033             #32 [hci0] 14.273106\\n        invalid packet size (12 != 1033)\\n        08 00 01 00 02 01 04 00 01 10 ff ff              ............\\n\u003e ACL Data RX: Handle 200 flags 0x00 dlen 1547             #33 [hci0] 14.273561\\n        invalid packet size (14 != 1547)\\n        0a 00 01 00 04 01 06 00 40 00 00 00 00 00        ........@.....\\n\u003e ACL Data RX: Handle 200 flags 0x00 dlen 2061             #34 [hci0] 14.274390\\n        invalid packet size (16 != 2061)\\n        0c 00 01 00 04 01 08 00 40 00 00 00 00 00 00 04  ........@.......\\n\u003e ACL Data RX: Handle 200 flags 0x00 dlen 2061             #35 [hci0] 14.274932\\n        invalid packet size (16 != 2061)\\n        0c 00 01 00 04 01 08 00 40 00 00 00 07 00 03 00  ........@.......\\n= bluetoothd: Bluetooth daemon 5.43                                   14.401828\\n\u003e ACL Data RX: Handle 200 flags 0x00 dlen 1033             #36 [hci0] 14.275753\\n        invalid packet size (12 != 1033)\\n        08 00 01 00 04 01 04 00 40 00 00 00              ........@...\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: L2CAP: Corregir desbordamiento de u8 Al seguir enviando paquetes L2CAP_CONF_REQ, chan-\u0026gt;num_conf_rsp aumenta varias veces y eventualmente alcanzar\u00e1 el n\u00famero m\u00e1ximo (es decir, 255). Este parche evita esto a\u00f1adiendo una comprobaci\u00f3n de los l\u00edmites con L2CAP_MAX_CONF_RSP Btmon log: Bluetooth monitor ver 5.64 = Nota: Linux versi\u00f3n 6.1.0-rc2 (x86_64) 0.264594 = Nota: Subsistema Bluetooth versi\u00f3n 2.22 0.264636 @ MGMT Open: btmon (privilegiado) versi\u00f3n 1.22 {0x0001} 0.272191 = Nuevo \u00edndice: 00:00:00:00:00:00 (Principal,Virtual,hci0) [hci0] 13.877604 @ RAW Open: 9496 (privilegiado) versi\u00f3n 2.22 {0x0002} 13.890741 = Abierto \u00cdndice: 00:00:00:00:00:00 [hci0] 13.900426 (...) \u0026gt; ACL Data RX: Manejar 200 indicadores 0x00 dlen 1033 #32 [hci0] 14.273106 tama\u00f1o de paquete no v\u00e1lido (12 != 1033) 08 00 01 00 02 01 04 00 01 10 ff ff ............ \u0026gt; ACL Data RX: Manejar 200 indicadores 0x00 dlen 1547 #33 [hci0] 14.273561 tama\u00f1o de paquete no v\u00e1lido (14 != 1547) 0a 00 01 00 04 01 06 00 40 00 00 00 00 00 ........@..... \u0026gt; ACL Data RX: Manejar 200 indicadores 0x00 dlen 2061 #34 [hci0] 14.274390 tama\u00f1o de paquete no v\u00e1lido (16 != 2061) 0c 00 01 00 04 01 08 00 40 00 00 00 00 00 00 04 ........@....... \u0026gt; ACL Data RX: Manejar 200 indicadores 0x00 dlen 2061 #35 [hci0] 14.274932 tama\u00f1o de paquete no v\u00e1lido (16 != 2061) 0c 00 01 00 04 01 08 00 40 00 00 00 07 00 03 00 ........@....... = bluetoothd: Daemon Bluetooth 5.43 14.401828 \u0026gt; ACL Data RX: Manejar 200 indicadores 0x00 dlen 1033 #36 [hci0] 14.275753 tama\u00f1o de paquete no v\u00e1lido (12 != 1033) 08 00 01 00 04 01 04 00 40 00 00 00 ........@...\"}],\"metrics\":{\"cvssMetricV31\":[{\"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:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-190\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"4.9.337\",\"matchCriteriaId\":\"9FFBA9B5-26DC-4802-9A86-F7B886954E4A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.14.303\",\"matchCriteriaId\":\"1E7450AD-4739-46F0-B81B-C02E7B35A97B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.270\",\"matchCriteriaId\":\"AE8904A3-99BE-4E49-9682-1F90A6373F4F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.229\",\"matchCriteriaId\":\"A0C0D95E-414A-445E-941B-3EF6A4D3A093\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.161\",\"matchCriteriaId\":\"6CD83369-DB79-46EF-B731-E327A63A4E1B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.85\",\"matchCriteriaId\":\"E0D49B1E-E996-4A13-9C5C-23C64BBD0E0F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.0.15\",\"matchCriteriaId\":\"3E66ABBB-C60E-481F-88C6-ED81661DFC31\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"E7E331DA-1FB0-4DEC-91AC-7DA69D461C11\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"17F0B248-42CF-4AE6-A469-BB1BAE7F4705\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"E2422816-0C14-4B5E-A1E6-A9D776E5C49B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"1C6E00FE-5FB9-4D20-A1A1-5A32128F9B76\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"35B26BE4-43A6-4A36-A7F6-5B3F572D9186\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"3FFFB0B3-930D-408A-91E2-BAE0C2715D80\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:*\",\"matchCriteriaId\":\"8535320E-A0DB-4277-800E-D0CE5BBA59E8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc8:*:*:*:*:*:*\",\"matchCriteriaId\":\"21718AA4-4056-40F2-968E-BDAA465A7872\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/19a78143961a197de8502f4f29c453b913dc3c29\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/49d5867819ab7c744852b45509e8469839c07e0e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5550bbf709c323194881737fd290c4bada9e6ead\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/95f1847a361c7b4bf7d74c06ecb6968455082c1a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9fdc79b571434af7bc742da40a3405f038b637a7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ad528fde0702903208d0a79d88d5a42ae3fc235b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/bcd70260ef56e0aee8a4fc6cd214a419900b0765\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f3fe6817156a2ad4b06f01afab04638a34d7c9a6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-48947\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-22T13:22:07.757358Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-22T13:22:10.845Z\"}}], \"cna\": {\"title\": \"Bluetooth: L2CAP: Fix u8 overflow\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"f2fcfcd670257236ebf2088bbdf26f6a8ef459fe\", \"lessThan\": \"49d5867819ab7c744852b45509e8469839c07e0e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f2fcfcd670257236ebf2088bbdf26f6a8ef459fe\", \"lessThan\": \"95f1847a361c7b4bf7d74c06ecb6968455082c1a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f2fcfcd670257236ebf2088bbdf26f6a8ef459fe\", \"lessThan\": \"ad528fde0702903208d0a79d88d5a42ae3fc235b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f2fcfcd670257236ebf2088bbdf26f6a8ef459fe\", \"lessThan\": \"9fdc79b571434af7bc742da40a3405f038b637a7\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f2fcfcd670257236ebf2088bbdf26f6a8ef459fe\", \"lessThan\": \"f3fe6817156a2ad4b06f01afab04638a34d7c9a6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f2fcfcd670257236ebf2088bbdf26f6a8ef459fe\", \"lessThan\": \"19a78143961a197de8502f4f29c453b913dc3c29\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f2fcfcd670257236ebf2088bbdf26f6a8ef459fe\", \"lessThan\": \"5550bbf709c323194881737fd290c4bada9e6ead\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f2fcfcd670257236ebf2088bbdf26f6a8ef459fe\", \"lessThan\": \"bcd70260ef56e0aee8a4fc6cd214a419900b0765\", \"versionType\": \"git\"}], \"programFiles\": [\"net/bluetooth/l2cap_core.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.32\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.32\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.9.337\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.303\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.270\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.229\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.161\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.85\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.0.15\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.0.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/bluetooth/l2cap_core.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/49d5867819ab7c744852b45509e8469839c07e0e\"}, {\"url\": \"https://git.kernel.org/stable/c/95f1847a361c7b4bf7d74c06ecb6968455082c1a\"}, {\"url\": \"https://git.kernel.org/stable/c/ad528fde0702903208d0a79d88d5a42ae3fc235b\"}, {\"url\": \"https://git.kernel.org/stable/c/9fdc79b571434af7bc742da40a3405f038b637a7\"}, {\"url\": \"https://git.kernel.org/stable/c/f3fe6817156a2ad4b06f01afab04638a34d7c9a6\"}, {\"url\": \"https://git.kernel.org/stable/c/19a78143961a197de8502f4f29c453b913dc3c29\"}, {\"url\": \"https://git.kernel.org/stable/c/5550bbf709c323194881737fd290c4bada9e6ead\"}, {\"url\": \"https://git.kernel.org/stable/c/bcd70260ef56e0aee8a4fc6cd214a419900b0765\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: L2CAP: Fix u8 overflow\\n\\nBy keep sending L2CAP_CONF_REQ packets, chan-\u003enum_conf_rsp increases\\nmultiple times and eventually it will wrap around the maximum number\\n(i.e., 255).\\nThis patch prevents this by adding a boundary check with\\nL2CAP_MAX_CONF_RSP\\n\\nBtmon log:\\nBluetooth monitor ver 5.64\\n= Note: Linux version 6.1.0-rc2 (x86_64)                               0.264594\\n= Note: Bluetooth subsystem version 2.22                               0.264636\\n@ MGMT Open: btmon (privileged) version 1.22                  {0x0001} 0.272191\\n= New Index: 00:00:00:00:00:00 (Primary,Virtual,hci0)          [hci0] 13.877604\\n@ RAW Open: 9496 (privileged) version 2.22                   {0x0002} 13.890741\\n= Open Index: 00:00:00:00:00:00                                [hci0] 13.900426\\n(...)\\n\u003e ACL Data RX: Handle 200 flags 0x00 dlen 1033             #32 [hci0] 14.273106\\n        invalid packet size (12 != 1033)\\n        08 00 01 00 02 01 04 00 01 10 ff ff              ............\\n\u003e ACL Data RX: Handle 200 flags 0x00 dlen 1547             #33 [hci0] 14.273561\\n        invalid packet size (14 != 1547)\\n        0a 00 01 00 04 01 06 00 40 00 00 00 00 00        ........@.....\\n\u003e ACL Data RX: Handle 200 flags 0x00 dlen 2061             #34 [hci0] 14.274390\\n        invalid packet size (16 != 2061)\\n        0c 00 01 00 04 01 08 00 40 00 00 00 00 00 00 04  ........@.......\\n\u003e ACL Data RX: Handle 200 flags 0x00 dlen 2061             #35 [hci0] 14.274932\\n        invalid packet size (16 != 2061)\\n        0c 00 01 00 04 01 08 00 40 00 00 00 07 00 03 00  ........@.......\\n= bluetoothd: Bluetooth daemon 5.43                                   14.401828\\n\u003e ACL Data RX: Handle 200 flags 0x00 dlen 1033             #36 [hci0] 14.275753\\n        invalid packet size (12 != 1033)\\n        08 00 01 00 04 01 04 00 40 00 00 00              ........@...\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.337\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.303\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.270\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.229\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.161\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.85\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0.15\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1\", \"versionStartIncluding\": \"2.6.32\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-12-23T13:21:14.514Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-48947\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-12-23T13:21:14.514Z\", \"dateReserved\": \"2024-08-22T01:27:53.624Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T20:05:36.491Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Taxonomy of the tags.




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.



Detection rules are retrieved from Rulezet.