fkie_cve-2024-35857
Vulnerability from fkie_nvd
Published
2024-05-17 15:15
Modified
2024-11-21 09:21
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
icmp: prevent possible NULL dereferences from icmp_build_probe()
First problem is a double call to __in_dev_get_rcu(), because
the second one could return NULL.
if (__in_dev_get_rcu(dev) && __in_dev_get_rcu(dev)->ifa_list)
Second problem is a read from dev->ip6_ptr with no NULL check:
if (!list_empty(&rcu_dereference(dev->ip6_ptr)->addr_list))
Use the correct RCU API to fix these.
v2: add missing include <net/addrconf.h>
References
Impacted products
Vendor | Product | Version |
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{ "cveTags": [], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nicmp: prevent possible NULL dereferences from icmp_build_probe()\n\nFirst problem is a double call to __in_dev_get_rcu(), because\nthe second one could return NULL.\n\nif (__in_dev_get_rcu(dev) \u0026\u0026 __in_dev_get_rcu(dev)-\u003eifa_list)\n\nSecond problem is a read from dev-\u003eip6_ptr with no NULL check:\n\nif (!list_empty(\u0026rcu_dereference(dev-\u003eip6_ptr)-\u003eaddr_list))\n\nUse the correct RCU API to fix these.\n\nv2: add missing include \u003cnet/addrconf.h\u003e" }, { "lang": "es", "value": " En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: icmp: evita posibles desreferencias a NULL por parte de icmp_build_probe(). El primer problema es una doble llamada a __in_dev_get_rcu(), porque la segunda podr\u00eda devolver NULL. if (__in_dev_get_rcu(dev) \u0026amp;\u0026amp; __in_dev_get_rcu(dev)-\u0026gt;ifa_list) El segundo problema es una lectura de dev-\u0026gt;ip6_ptr sin verificaci\u00f3n NULL: if (!list_empty(\u0026amp;rcu_dereference(dev-\u0026gt;ip6_ptr)-\u0026gt;addr_list)) Use el correcto API de RCU para solucionarlos. v2: agregar falta incluir " } ], "id": "CVE-2024-35857", "lastModified": "2024-11-21T09:21:03.753", "metrics": { "cvssMetricV31": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1" }, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary" } ] }, "published": "2024-05-17T15:15:23.090", "references": [ { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/23b7ee4a8d559bf38eac7ce5bb2f6ebf76f9c401" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3e2979bf080c40da4f7c93aff8575ab8bc62b767" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/599c9ad5e1d43f5c12d869f5fd406ba5d8c55270" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c58e88d49097bd12dfcfef4f075b43f5d5830941" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d68dc711d84fdcf698e5d45308c3ddeede586350" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/23b7ee4a8d559bf38eac7ce5bb2f6ebf76f9c401" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/3e2979bf080c40da4f7c93aff8575ab8bc62b767" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/599c9ad5e1d43f5c12d869f5fd406ba5d8c55270" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/c58e88d49097bd12dfcfef4f075b43f5d5830941" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/d68dc711d84fdcf698e5d45308c3ddeede586350" } ], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-476" } ], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary" } ] }
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Sightings
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Nomenclature
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