cve-2024-43839
Vulnerability from cvelistv5
Published
2024-08-17 09:21
Modified
2024-12-19 09:16
Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bna: adjust 'name' buf size of bna_tcb and bna_ccb structures
To have enough space to write all possible sprintf() args. Currently
'name' size is 16, but the first '%s' specifier may already need at
least 16 characters, since 'bnad->netdev->name' is used there.
For '%d' specifiers, assume that they require:
* 1 char for 'tx_id + tx_info->tcb[i]->id' sum, BNAD_MAX_TXQ_PER_TX is 8
* 2 chars for 'rx_id + rx_info->rx_ctrl[i].ccb->id', BNAD_MAX_RXP_PER_RX
is 16
And replace sprintf with snprintf.
Detected using the static analysis tool - Svace.
References
Impacted products
| Vendor | Product | Version | |||||
|---|---|---|---|---|---|---|---|
| ▼ | Linux | Linux |
Version: 8b230ed8ec96c933047dd0625cf95f739e4939a6 Version: 8b230ed8ec96c933047dd0625cf95f739e4939a6 Version: 8b230ed8ec96c933047dd0625cf95f739e4939a6 Version: 8b230ed8ec96c933047dd0625cf95f739e4939a6 Version: 8b230ed8ec96c933047dd0625cf95f739e4939a6 Version: 8b230ed8ec96c933047dd0625cf95f739e4939a6 Version: 8b230ed8ec96c933047dd0625cf95f739e4939a6 Version: 8b230ed8ec96c933047dd0625cf95f739e4939a6 |
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{
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"id": "CVE-2024-43839",
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"timestamp": "2024-09-10T16:08:02.344125Z",
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"cna": {
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"drivers/net/ethernet/brocade/bna/bnad.c"
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"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbna: adjust \u0027name\u0027 buf size of bna_tcb and bna_ccb structures\n\nTo have enough space to write all possible sprintf() args. Currently\n\u0027name\u0027 size is 16, but the first \u0027%s\u0027 specifier may already need at\nleast 16 characters, since \u0027bnad-\u003enetdev-\u003ename\u0027 is used there.\n\nFor \u0027%d\u0027 specifiers, assume that they require:\n * 1 char for \u0027tx_id + tx_info-\u003etcb[i]-\u003eid\u0027 sum, BNAD_MAX_TXQ_PER_TX is 8\n * 2 chars for \u0027rx_id + rx_info-\u003erx_ctrl[i].ccb-\u003eid\u0027, BNAD_MAX_RXP_PER_RX\n is 16\n\nAnd replace sprintf with snprintf.\n\nDetected using the static analysis tool - Svace."
}
],
"providerMetadata": {
"dateUpdated": "2024-12-19T09:16:53.558Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"url": "https://git.kernel.org/stable/c/f121740f69eda4da2de9a20a6687a13593e72540"
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"url": "https://git.kernel.org/stable/c/c90b1cd7758fd4839909e838ae195d19f8065d76"
},
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"url": "https://git.kernel.org/stable/c/6ce46045f9b90d952602e2c0b8886cfadf860bf1"
},
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"url": "https://git.kernel.org/stable/c/6d20c4044ab4d0e6a99aa35853e66f0aed5589e3"
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"url": "https://git.kernel.org/stable/c/ab748dd10d8742561f2980fea08ffb4f0cacfdef"
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"url": "https://git.kernel.org/stable/c/b0ff0cd0847b03c0a0abe20cfa900eabcfcb9e43"
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"url": "https://git.kernel.org/stable/c/e0f48f51d55fb187400e9787192eda09fa200ff5"
},
{
"url": "https://git.kernel.org/stable/c/c9741a03dc8e491e57b95fba0058ab46b7e506da"
}
],
"title": "bna: adjust \u0027name\u0027 buf size of bna_tcb and bna_ccb structures",
"x_generator": {
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"assignerShortName": "Linux",
"cveId": "CVE-2024-43839",
"datePublished": "2024-08-17T09:21:55.085Z",
"dateReserved": "2024-08-17T09:11:59.274Z",
"dateUpdated": "2024-12-19T09:16:53.558Z",
"state": "PUBLISHED"
},
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"nvd": "{\"cve\":{\"id\":\"CVE-2024-43839\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-08-17T10:15:09.447\",\"lastModified\":\"2024-10-30T21:49:21.520\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbna: adjust \u0027name\u0027 buf size of bna_tcb and bna_ccb structures\\n\\nTo have enough space to write all possible sprintf() args. Currently\\n\u0027name\u0027 size is 16, but the first \u0027%s\u0027 specifier may already need at\\nleast 16 characters, since \u0027bnad-\u003enetdev-\u003ename\u0027 is used there.\\n\\nFor \u0027%d\u0027 specifiers, assume that they require:\\n * 1 char for \u0027tx_id + tx_info-\u003etcb[i]-\u003eid\u0027 sum, BNAD_MAX_TXQ_PER_TX is 8\\n * 2 chars for \u0027rx_id + rx_info-\u003erx_ctrl[i].ccb-\u003eid\u0027, BNAD_MAX_RXP_PER_RX\\n is 16\\n\\nAnd replace sprintf with snprintf.\\n\\nDetected using the static analysis tool - Svace.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bna: ajuste el tama\u00f1o del buf \u0027nombre\u0027 de las estructuras bna_tcb y bna_ccb para tener suficiente espacio para escribir todos los argumentos posibles de sprintf(). Actualmente el tama\u00f1o de \u0027nombre\u0027 es 16, pero es posible que el primer especificador \u0027%s\u0027 ya necesite al menos 16 caracteres, ya que all\u00ed se usa \u0027bnad-\u0026gt;netdev-\u0026gt;name\u0027. Para los especificadores \u0027%d\u0027, supongamos que requieren: * 1 car\u00e1cter para la suma \u0027tx_id + tx_info-\u0026gt;tcb[i]-\u0026gt;id\u0027, BNAD_MAX_TXQ_PER_TX es 8 * 2 caracteres para \u0027rx_id + rx_info-\u0026gt;rx_ctrl[i]. ccb-\u0026gt;id\u0027, BNAD_MAX_RXP_PER_RX es 16 y reemplace sprintf con snprintf. Detectado utilizando la herramienta de an\u00e1lisis est\u00e1tico - Svace.\"}],\"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: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}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.37\",\"versionEndExcluding\":\"6.1.103\",\"matchCriteriaId\":\"F33F692E-575D-4F55-A0CC-1A294872D3B8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.44\",\"matchCriteriaId\":\"CC912330-6B41-4C6B-99AF-F3857FBACB6A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.10.3\",\"matchCriteriaId\":\"92D388F2-1EAF-4CFA-AC06-5B26D762EA7D\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/6ce46045f9b90d952602e2c0b8886cfadf860bf1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6d20c4044ab4d0e6a99aa35853e66f0aed5589e3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ab748dd10d8742561f2980fea08ffb4f0cacfdef\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b0ff0cd0847b03c0a0abe20cfa900eabcfcb9e43\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c90b1cd7758fd4839909e838ae195d19f8065d76\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c9741a03dc8e491e57b95fba0058ab46b7e506da\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e0f48f51d55fb187400e9787192eda09fa200ff5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f121740f69eda4da2de9a20a6687a13593e72540\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.