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nvd-json-data-feeds/CVE-2022/CVE-2022-29xx/CVE-2022-2928.json

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{
"id": "CVE-2022-2928",
"sourceIdentifier": "security-officer@isc.org",
"published": "2022-10-07T05:15:08.677",
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"lastModified": "2024-11-21T07:01:56.183",
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"vulnStatus": "Modified",
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"cveTags": [],
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"descriptions": [
{
"lang": "en",
"value": "In ISC DHCP 4.4.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1, when the function option_code_hash_lookup() is called from add_option(), it increases the option's refcount field. However, there is not a corresponding call to option_dereference() to decrement the refcount field. The function add_option() is only used in server responses to lease query packets. Each lease query response calls this function for several options, so eventually, the reference counters could overflow and cause the server to abort."
},
{
"lang": "es",
"value": "En ISC DHCP versiones 4.4.0 anteriores a 4.4.3, ISC DHCP versiones 4.1-ESV-R1 anteriores a 4.1-ESV-R16-P1, cuando la funci\u00f3n option_code_hash_lookup() es llamada desde add_option(), incrementa el campo refcount de la opci\u00f3n. Sin embargo, no se presenta una llamada correspondiente a option_dereference() para disminuir el campo refcount. La funci\u00f3n add_option() s\u00f3lo es usada en las respuestas del servidor a paquetes de consulta de arrendamiento. Cada respuesta de consulta de arrendamiento llama a esta funci\u00f3n para varias opciones, por lo que eventualmente, los contadores de referencia podr\u00edan desbordarse y causar a el servidor abortar"
}
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"source": "security-officer@isc.org",
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"type": "Primary",
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"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"baseScore": 6.5,
"baseSeverity": "MEDIUM",
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"attackVector": "ADJACENT_NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
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"availabilityImpact": "HIGH"
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},
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"source": "nvd@nist.gov",
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"type": "Secondary",
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Auto-Update: 2024-12-08T03:00:18.988682+00:00
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"baseScore": 6.5,
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"attackVector": "ADJACENT_NETWORK",
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"privilegesRequired": "NONE",
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"availabilityImpact": "HIGH"
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},
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