FKIE_CVE-2024-26988
Vulnerability from fkie_nvd - Published: 2024-05-01 06:15 - Updated: 2026-06-17 07:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
init/main.c: Fix potential static_command_line memory overflow
We allocate memory of size 'xlen + strlen(boot_command_line) + 1' for
static_command_line, but the strings copied into static_command_line are
extra_command_line and command_line, rather than extra_command_line and
boot_command_line.
When strlen(command_line) > strlen(boot_command_line), static_command_line
will overflow.
This patch just recovers strlen(command_line) which was miss-consolidated
with strlen(boot_command_line) in the commit f5c7310ac73e ("init/main: add
checks for the return value of memblock_alloc*()")
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 6.9 | |
| linux | linux_kernel | 6.9 | |
| linux | linux_kernel | 6.9 | |
| linux | linux_kernel | 6.9 | |
| debian | debian_linux | 10.0 | |
| fedoraproject | fedora | 38 | |
| fedoraproject | fedora | 39 | |
| fedoraproject | fedora | 40 |
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{
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"status": "unaffected",
"version": "5.15.157",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.88",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.6.29",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.8.8",
"versionType": "semver"
},
{
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
}
]
}
],
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},
{
"affectedData": [
{
"defaultStatus": "unknown",
"product": "RUGGEDCOM RST2428P",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SCALANCE XCM-/XRM-/XCH-/XRH-300 family",
"vendor": "Siemens",
"versions": [
{
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"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
}
],
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ninit/main.c: Fix potential static_command_line memory overflow\n\nWe allocate memory of size \u0027xlen + strlen(boot_command_line) + 1\u0027 for\nstatic_command_line, but the strings copied into static_command_line are\nextra_command_line and command_line, rather than extra_command_line and\nboot_command_line.\n\nWhen strlen(command_line) \u003e strlen(boot_command_line), static_command_line\nwill overflow.\n\nThis patch just recovers strlen(command_line) which was miss-consolidated\nwith strlen(boot_command_line) in the commit f5c7310ac73e (\"init/main: add\nchecks for the return value of memblock_alloc*()\")"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: init/main.c: soluciona un posible desbordamiento de memoria de static_command_line Asignamos memoria de tama\u00f1o \u0027xlen + strlen(boot_command_line) + 1\u0027 para static_command_line, pero las cadenas copiadas en static_command_line son extra_command_line y command_line, en lugar de extra_command_line y boot_command_line. Cuando strlen(command_line) \u0026gt; strlen(boot_command_line), static_command_line se desbordar\u00e1. Este parche simplemente recupera strlen(command_line) que no se consolid\u00f3 con strlen(boot_command_line) en el commit f5c7310ac73e (\"init/main: agregue comprobaciones para el valor de retorno de memblock_alloc*()\")"
}
],
"id": "CVE-2024-26988",
"lastModified": "2026-06-17T07:18:52.300",
"metrics": {
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{
"cvssData": {
"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"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
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"options": [
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{
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{
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],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T15:44:56.344439Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-05-01T06:15:16.420",
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}
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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.
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