{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2024-35839",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-05-17T13:50:33.104Z",
        "datePublished": "2024-05-17T14:27:30.524Z",
        "dateUpdated": "2024-08-02T03:21:48.411Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-05-29T05:29:53.760Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: bridge: replace physindev with physinif in nf_bridge_info\n\nAn skb can be added to a neigh->arp_queue while waiting for an arp\nreply. Where original skb's skb->dev can be different to neigh's\nneigh->dev. For instance in case of bridging dnated skb from one veth to\nanother, the skb would be added to a neigh->arp_queue of the bridge.\n\nAs skb->dev can be reset back to nf_bridge->physindev and used, and as\nthere is no explicit mechanism that prevents this physindev from been\nfreed under us (for instance neigh_flush_dev doesn't cleanup skbs from\ndifferent device's neigh queue) we can crash on e.g. this stack:\n\narp_process\n  neigh_update\n    skb = __skb_dequeue(&neigh->arp_queue)\n      neigh_resolve_output(..., skb)\n        ...\n          br_nf_dev_xmit\n            br_nf_pre_routing_finish_bridge_slow\n              skb->dev = nf_bridge->physindev\n              br_handle_frame_finish\n\nLet's use plain ifindex instead of net_device link. To peek into the\noriginal net_device we will use dev_get_by_index_rcu(). Thus either we\nget device and are safe to use it or we don't get it and drop skb."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/linux/netfilter_bridge.h",
                        "include/linux/skbuff.h",
                        "net/bridge/br_netfilter_hooks.c",
                        "net/bridge/br_netfilter_ipv6.c",
                        "net/ipv4/netfilter/nf_reject_ipv4.c",
                        "net/ipv6/netfilter/nf_reject_ipv6.c"
                    ],
                    "versions": [
                        {
                            "version": "c4e70a87d975",
                            "lessThan": "7ae19ee81ca5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c4e70a87d975",
                            "lessThan": "9325e3188a9c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c4e70a87d975",
                            "lessThan": "544add1f1cfb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c4e70a87d975",
                            "lessThan": "9874808878d9",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/linux/netfilter_bridge.h",
                        "include/linux/skbuff.h",
                        "net/bridge/br_netfilter_hooks.c",
                        "net/bridge/br_netfilter_ipv6.c",
                        "net/ipv4/netfilter/nf_reject_ipv4.c",
                        "net/ipv6/netfilter/nf_reject_ipv6.c"
                    ],
                    "versions": [
                        {
                            "version": "4.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.2",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.1.75",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.6.14",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.7.2",
                            "lessThanOrEqual": "6.7.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.8",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/7ae19ee81ca56b13c50a78de6c47d5b8fdc9d97b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9325e3188a9cf3f69fc6f32af59844bbc5b90547"
                },
                {
                    "url": "https://git.kernel.org/stable/c/544add1f1cfb78c3dfa3e6edcf4668f6be5e730c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9874808878d9eed407e3977fd11fee49de1e1d86"
                }
            ],
            "title": "netfilter: bridge: replace physindev with physinif in nf_bridge_info",
            "x_generator": {
                "engine": "bippy-a5840b7849dd"
            }
        },
        "adp": [
            {
                "title": "CISA ADP Vulnrichment",
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2024-35839",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2024-05-23T19:26:55.890240Z"
                            }
                        }
                    }
                ],
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-06-04T17:33:44.186Z"
                }
            },
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-02T03:21:48.411Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://git.kernel.org/stable/c/7ae19ee81ca56b13c50a78de6c47d5b8fdc9d97b",
                        "tags": [
                            "x_transferred"
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                    {
                        "url": "https://git.kernel.org/stable/c/9325e3188a9cf3f69fc6f32af59844bbc5b90547",
                        "tags": [
                            "x_transferred"
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                    {
                        "url": "https://git.kernel.org/stable/c/544add1f1cfb78c3dfa3e6edcf4668f6be5e730c",
                        "tags": [
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                    {
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    }
}