mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
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72 lines
2.9 KiB
JSON
72 lines
2.9 KiB
JSON
{
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"id": "CVE-2025-21759",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2025-02-27T03:15:16.550",
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"lastModified": "2025-02-27T18:15:28.927",
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"vulnStatus": "Undergoing Analysis",
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"cveTags": [],
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: mcast: extend RCU protection in igmp6_send()\n\nigmp6_send() can be called without RTNL or RCU being held.\n\nExtend RCU protection so that we can safely fetch the net pointer\nand avoid a potential UAF.\n\nNote that we no longer can use sock_alloc_send_skb() because\nipv6.igmp_sk uses GFP_KERNEL allocations which can sleep.\n\nInstead use alloc_skb() and charge the net->ipv6.igmp_sk\nsocket under RCU protection."
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},
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{
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"lang": "es",
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ipv6: mcast: extender la protecci\u00f3n RCU en igmp6_send() igmp6_send() se puede llamar sin que se mantenga RTNL o RCU. Extienda la protecci\u00f3n RCU para que podamos obtener de forma segura el puntero de red y evitar un posible UAF. Tenga en cuenta que ya no podemos usar sock_alloc_send_skb() porque ipv6.igmp_sk usa asignaciones GFP_KERNEL que pueden dormir. En su lugar, use alloc_skb() y cargue el socket net->ipv6.igmp_sk bajo la protecci\u00f3n RCU."
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}
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],
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"metrics": {
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"cvssMetricV31": [
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{
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"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"type": "Secondary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH",
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"availabilityImpact": "HIGH"
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},
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"exploitabilityScore": 1.8,
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"impactScore": 5.9
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}
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]
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},
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"weaknesses": [
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{
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"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"type": "Secondary",
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"description": [
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{
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"lang": "en",
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"value": "CWE-416"
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/087c1faa594fa07a66933d750c0b2610aa1a2946",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/0bf8e2f3768629d437a32cb824149e6e98254381",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/81b25a07ebf53f9ef4ca8f3d96a8ddb94561dd5a",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/8e92d6a413feaf968a33f0b439ecf27404407458",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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}
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]
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} |