fkie_cve-2024-38576
Vulnerability from fkie_nvd
Published
2024-06-19 14:15
Modified
2024-11-21 09:26
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
rcu: Fix buffer overflow in print_cpu_stall_info()
The rcuc-starvation output from print_cpu_stall_info() might overflow the
buffer if there is a huge difference in jiffies difference. The situation
might seem improbable, but computers sometimes get very confused about
time, which can result in full-sized integers, and, in this case,
buffer overflow.
Also, the unsigned jiffies difference is printed using %ld, which is
normally for signed integers. This is intentional for debugging purposes,
but it is not obvious from the code.
This commit therefore changes sprintf() to snprintf() and adds a
clarifying comment about intention of %ld format.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrcu: Fix buffer overflow in print_cpu_stall_info()\n\nThe rcuc-starvation output from print_cpu_stall_info() might overflow the\nbuffer if there is a huge difference in jiffies difference. The situation\nmight seem improbable, but computers sometimes get very confused about\ntime, which can result in full-sized integers, and, in this case,\nbuffer overflow.\n\nAlso, the unsigned jiffies difference is printed using %ld, which is\nnormally for signed integers. This is intentional for debugging purposes,\nbut it is not obvious from the code.\n\nThis commit therefore changes sprintf() to snprintf() and adds a\nclarifying comment about intention of %ld format.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: rcu: corrige el desbordamiento del b\u00fafer en print_cpu_stall_info() La salida rcuc-starvation de print_cpu_stall_info() podr\u00eda desbordar el b\u00fafer si hay una gran diferencia en santiam\u00e9n. La situaci\u00f3n puede parecer improbable, pero las computadoras a veces se confunden mucho con el tiempo, lo que puede resultar en n\u00fameros enteros de tama\u00f1o completo y, en este caso, en un desbordamiento del b\u00fafer. Adem\u00e1s, la diferencia de santiam\u00e9n sin signo se imprime usando %ld, que normalmente es para enteros con signo. Esto es intencional con fines de depuraci\u00f3n, pero no es obvio en el c\u00f3digo. Por lo tanto, esta confirmaci\u00f3n cambia sprintf() a snprintf() y agrega un comentario aclaratorio sobre la intenci\u00f3n del formato %ld. Encontrado por el Centro de verificaci\u00f3n de Linux (linuxtesting.org) con SVACE."
}
],
"id": "CVE-2024-38576",
"lastModified": "2024-11-21T09:26:23.340",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.2,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
},
"published": "2024-06-19T14:15:17.700",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/3758f7d9917bd7ef0482c4184c0ad673b4c4e069"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/4c3e2ef4d8ddd313c8ce3ac30505940bea8d6257"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/9351e1338539cb7f319ffc1210fa9b2aa27384b5"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/afb39909bfb5c08111f99e21bf5be7505f59ff1c"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/e2228ed3fe7aa838fba87c79a76fb1ad9ea47138"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/3758f7d9917bd7ef0482c4184c0ad673b4c4e069"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/4c3e2ef4d8ddd313c8ce3ac30505940bea8d6257"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/9351e1338539cb7f319ffc1210fa9b2aa27384b5"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/afb39909bfb5c08111f99e21bf5be7505f59ff1c"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.kernel.org/stable/c/e2228ed3fe7aa838fba87c79a76fb1ad9ea47138"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
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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.