CVE-2024-27018
Vulnerability from cvelistv5
Published
2024-05-01 05:30
Modified
2024-12-19 08:52
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: br_netfilter: skip conntrack input hook for promisc packets For historical reasons, when bridge device is in promisc mode, packets that are directed to the taps follow bridge input hook path. This patch adds a workaround to reset conntrack for these packets. Jianbo Liu reports warning splats in their test infrastructure where cloned packets reach the br_netfilter input hook to confirm the conntrack object. Scratch one bit from BR_INPUT_SKB_CB to annotate that this packet has reached the input hook because it is passed up to the bridge device to reach the taps. [ 57.571874] WARNING: CPU: 1 PID: 0 at net/bridge/br_netfilter_hooks.c:616 br_nf_local_in+0x157/0x180 [br_netfilter] [ 57.572749] Modules linked in: xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat xt_addrtype xt_conntrack nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry overlay rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_isc si ib_umad rdma_cm ib_ipoib iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5ctl mlx5_core [ 57.575158] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0+ #19 [ 57.575700] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 [ 57.576662] RIP: 0010:br_nf_local_in+0x157/0x180 [br_netfilter] [ 57.577195] Code: fe ff ff 41 bd 04 00 00 00 be 04 00 00 00 e9 4a ff ff ff be 04 00 00 00 48 89 ef e8 f3 a9 3c e1 66 83 ad b4 00 00 00 04 eb 91 <0f> 0b e9 f1 fe ff ff 0f 0b e9 df fe ff ff 48 89 df e8 b3 53 47 e1 [ 57.578722] RSP: 0018:ffff88885f845a08 EFLAGS: 00010202 [ 57.579207] RAX: 0000000000000002 RBX: ffff88812dfe8000 RCX: 0000000000000000 [ 57.579830] RDX: ffff88885f845a60 RSI: ffff8881022dc300 RDI: 0000000000000000 [ 57.580454] RBP: ffff88885f845a60 R08: 0000000000000001 R09: 0000000000000003 [ 57.581076] R10: 00000000ffff1300 R11: 0000000000000002 R12: 0000000000000000 [ 57.581695] R13: ffff8881047ffe00 R14: ffff888108dbee00 R15: ffff88814519b800 [ 57.582313] FS: 0000000000000000(0000) GS:ffff88885f840000(0000) knlGS:0000000000000000 [ 57.583040] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.583564] CR2: 000000c4206aa000 CR3: 0000000103847001 CR4: 0000000000370eb0 [ 57.584194] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.584820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.585440] Call Trace: [ 57.585721] <IRQ> [ 57.585976] ? __warn+0x7d/0x130 [ 57.586323] ? br_nf_local_in+0x157/0x180 [br_netfilter] [ 57.586811] ? report_bug+0xf1/0x1c0 [ 57.587177] ? handle_bug+0x3f/0x70 [ 57.587539] ? exc_invalid_op+0x13/0x60 [ 57.587929] ? asm_exc_invalid_op+0x16/0x20 [ 57.588336] ? br_nf_local_in+0x157/0x180 [br_netfilter] [ 57.588825] nf_hook_slow+0x3d/0xd0 [ 57.589188] ? br_handle_vlan+0x4b/0x110 [ 57.589579] br_pass_frame_up+0xfc/0x150 [ 57.589970] ? br_port_flags_change+0x40/0x40 [ 57.590396] br_handle_frame_finish+0x346/0x5e0 [ 57.590837] ? ipt_do_table+0x32e/0x430 [ 57.591221] ? br_handle_local_finish+0x20/0x20 [ 57.591656] br_nf_hook_thresh+0x4b/0xf0 [br_netfilter] [ 57.592286] ? br_handle_local_finish+0x20/0x20 [ 57.592802] br_nf_pre_routing_finish+0x178/0x480 [br_netfilter] [ 57.593348] ? br_handle_local_finish+0x20/0x20 [ 57.593782] ? nf_nat_ipv4_pre_routing+0x25/0x60 [nf_nat] [ 57.594279] br_nf_pre_routing+0x24c/0x550 [br_netfilter] [ 57.594780] ? br_nf_hook_thresh+0xf0/0xf0 [br_netfilter] [ 57.595280] br_handle_frame+0x1f3/0x3d0 [ 57.595676] ? br_handle_local_finish+0x20/0x20 [ 57.596118] ? br_handle_frame_finish+0x5e0/0x5e0 [ 57.596566] __netif_receive_skb_core+0x25b/0xfc0 [ 57.597017] ? __napi_build_skb+0x37/0x40 [ 57.597418] __netif_receive_skb_list_core+0xfb/0x220
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3f59ac29dea0921637053908fe99268d157bbb9dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/43193174510ea4f3ce09b796e559a2fd9f148615Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/751de2012eafa4d46d8081056761fa0e9cc8a178Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dceb683ab87ca3666a9bb5c0158528b646faedc4Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3f59ac29dea0921637053908fe99268d157bbb9dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/43193174510ea4f3ce09b796e559a2fd9f148615Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/751de2012eafa4d46d8081056761fa0e9cc8a178Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/dceb683ab87ca3666a9bb5c0158528b646faedc4Patch
Impacted products
Vendor Product Version
Linux Linux Version: 6.8
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-27018",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-23T17:22:22.725918Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:46:18.755Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:21:05.873Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/dceb683ab87ca3666a9bb5c0158528b646faedc4"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/3f59ac29dea0921637053908fe99268d157bbb9d"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/43193174510ea4f3ce09b796e559a2fd9f148615"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/751de2012eafa4d46d8081056761fa0e9cc8a178"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bridge/br_input.c",
            "net/bridge/br_netfilter_hooks.c",
            "net/bridge/br_private.h",
            "net/bridge/netfilter/nf_conntrack_bridge.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "dceb683ab87ca3666a9bb5c0158528b646faedc4",
              "status": "affected",
              "version": "7c3f28599652acf431a2211168de4a583f30b6d5",
              "versionType": "git"
            },
            {
              "lessThan": "b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6",
              "status": "affected",
              "version": "2b1414d5e94e477edff1d2c79030f1d742625ea0",
              "versionType": "git"
            },
            {
              "lessThan": "3f59ac29dea0921637053908fe99268d157bbb9d",
              "status": "affected",
              "version": "80cd0487f630b5382734997c3e5e3003a77db315",
              "versionType": "git"
            },
            {
              "lessThan": "43193174510ea4f3ce09b796e559a2fd9f148615",
              "status": "affected",
              "version": "62e7151ae3eb465e0ab52a20c941ff33bb6332e9",
              "versionType": "git"
            },
            {
              "lessThan": "751de2012eafa4d46d8081056761fa0e9cc8a178",
              "status": "affected",
              "version": "62e7151ae3eb465e0ab52a20c941ff33bb6332e9",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/bridge/br_input.c",
            "net/bridge/br_netfilter_hooks.c",
            "net/bridge/br_private.h",
            "net/bridge/netfilter/nf_conntrack_bridge.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.29",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.8.*",
              "status": "unaffected",
              "version": "6.8.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.9",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: br_netfilter: skip conntrack input hook for promisc packets\n\nFor historical reasons, when bridge device is in promisc mode, packets\nthat are directed to the taps follow bridge input hook path. This patch\nadds a workaround to reset conntrack for these packets.\n\nJianbo Liu reports warning splats in their test infrastructure where\ncloned packets reach the br_netfilter input hook to confirm the\nconntrack object.\n\nScratch one bit from BR_INPUT_SKB_CB to annotate that this packet has\nreached the input hook because it is passed up to the bridge device to\nreach the taps.\n\n[   57.571874] WARNING: CPU: 1 PID: 0 at net/bridge/br_netfilter_hooks.c:616 br_nf_local_in+0x157/0x180 [br_netfilter]\n[   57.572749] Modules linked in: xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat xt_addrtype xt_conntrack nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry overlay rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_isc si ib_umad rdma_cm ib_ipoib iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5ctl mlx5_core\n[   57.575158] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0+ #19\n[   57.575700] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n[   57.576662] RIP: 0010:br_nf_local_in+0x157/0x180 [br_netfilter]\n[   57.577195] Code: fe ff ff 41 bd 04 00 00 00 be 04 00 00 00 e9 4a ff ff ff be 04 00 00 00 48 89 ef e8 f3 a9 3c e1 66 83 ad b4 00 00 00 04 eb 91 \u003c0f\u003e 0b e9 f1 fe ff ff 0f 0b e9 df fe ff ff 48 89 df e8 b3 53 47 e1\n[   57.578722] RSP: 0018:ffff88885f845a08 EFLAGS: 00010202\n[   57.579207] RAX: 0000000000000002 RBX: ffff88812dfe8000 RCX: 0000000000000000\n[   57.579830] RDX: ffff88885f845a60 RSI: ffff8881022dc300 RDI: 0000000000000000\n[   57.580454] RBP: ffff88885f845a60 R08: 0000000000000001 R09: 0000000000000003\n[   57.581076] R10: 00000000ffff1300 R11: 0000000000000002 R12: 0000000000000000\n[   57.581695] R13: ffff8881047ffe00 R14: ffff888108dbee00 R15: ffff88814519b800\n[   57.582313] FS:  0000000000000000(0000) GS:ffff88885f840000(0000) knlGS:0000000000000000\n[   57.583040] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   57.583564] CR2: 000000c4206aa000 CR3: 0000000103847001 CR4: 0000000000370eb0\n[   57.584194] DR0: 0000000000000000 DR1: 0000000000000000 DR2:\n0000000000000000\n[   57.584820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:\n0000000000000400\n[   57.585440] Call Trace:\n[   57.585721]  \u003cIRQ\u003e\n[   57.585976]  ? __warn+0x7d/0x130\n[   57.586323]  ? br_nf_local_in+0x157/0x180 [br_netfilter]\n[   57.586811]  ? report_bug+0xf1/0x1c0\n[   57.587177]  ? handle_bug+0x3f/0x70\n[   57.587539]  ? exc_invalid_op+0x13/0x60\n[   57.587929]  ? asm_exc_invalid_op+0x16/0x20\n[   57.588336]  ? br_nf_local_in+0x157/0x180 [br_netfilter]\n[   57.588825]  nf_hook_slow+0x3d/0xd0\n[   57.589188]  ? br_handle_vlan+0x4b/0x110\n[   57.589579]  br_pass_frame_up+0xfc/0x150\n[   57.589970]  ? br_port_flags_change+0x40/0x40\n[   57.590396]  br_handle_frame_finish+0x346/0x5e0\n[   57.590837]  ? ipt_do_table+0x32e/0x430\n[   57.591221]  ? br_handle_local_finish+0x20/0x20\n[   57.591656]  br_nf_hook_thresh+0x4b/0xf0 [br_netfilter]\n[   57.592286]  ? br_handle_local_finish+0x20/0x20\n[   57.592802]  br_nf_pre_routing_finish+0x178/0x480 [br_netfilter]\n[   57.593348]  ? br_handle_local_finish+0x20/0x20\n[   57.593782]  ? nf_nat_ipv4_pre_routing+0x25/0x60 [nf_nat]\n[   57.594279]  br_nf_pre_routing+0x24c/0x550 [br_netfilter]\n[   57.594780]  ? br_nf_hook_thresh+0xf0/0xf0 [br_netfilter]\n[   57.595280]  br_handle_frame+0x1f3/0x3d0\n[   57.595676]  ? br_handle_local_finish+0x20/0x20\n[   57.596118]  ? br_handle_frame_finish+0x5e0/0x5e0\n[   57.596566]  __netif_receive_skb_core+0x25b/0xfc0\n[   57.597017]  ? __napi_build_skb+0x37/0x40\n[   57.597418]  __netif_receive_skb_list_core+0xfb/0x220"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T08:52:36.557Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/dceb683ab87ca3666a9bb5c0158528b646faedc4"
        },
        {
          "url": "https://git.kernel.org/stable/c/b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6"
        },
        {
          "url": "https://git.kernel.org/stable/c/3f59ac29dea0921637053908fe99268d157bbb9d"
        },
        {
          "url": "https://git.kernel.org/stable/c/43193174510ea4f3ce09b796e559a2fd9f148615"
        },
        {
          "url": "https://git.kernel.org/stable/c/751de2012eafa4d46d8081056761fa0e9cc8a178"
        }
      ],
      "title": "netfilter: br_netfilter: skip conntrack input hook for promisc packets",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-27018",
    "datePublished": "2024-05-01T05:30:06.472Z",
    "dateReserved": "2024-02-19T14:20:24.209Z",
    "dateUpdated": "2024-12-19T08:52:36.557Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-27018\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-01T06:15:20.600\",\"lastModified\":\"2024-11-21T09:03:40.363\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: br_netfilter: skip conntrack input hook for promisc packets\\n\\nFor historical reasons, when bridge device is in promisc mode, packets\\nthat are directed to the taps follow bridge input hook path. This patch\\nadds a workaround to reset conntrack for these packets.\\n\\nJianbo Liu reports warning splats in their test infrastructure where\\ncloned packets reach the br_netfilter input hook to confirm the\\nconntrack object.\\n\\nScratch one bit from BR_INPUT_SKB_CB to annotate that this packet has\\nreached the input hook because it is passed up to the bridge device to\\nreach the taps.\\n\\n[   57.571874] WARNING: CPU: 1 PID: 0 at net/bridge/br_netfilter_hooks.c:616 br_nf_local_in+0x157/0x180 [br_netfilter]\\n[   57.572749] Modules linked in: xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat xt_addrtype xt_conntrack nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry overlay rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_isc si ib_umad rdma_cm ib_ipoib iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5ctl mlx5_core\\n[   57.575158] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0+ #19\\n[   57.575700] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\\n[   57.576662] RIP: 0010:br_nf_local_in+0x157/0x180 [br_netfilter]\\n[   57.577195] Code: fe ff ff 41 bd 04 00 00 00 be 04 00 00 00 e9 4a ff ff ff be 04 00 00 00 48 89 ef e8 f3 a9 3c e1 66 83 ad b4 00 00 00 04 eb 91 \u003c0f\u003e 0b e9 f1 fe ff ff 0f 0b e9 df fe ff ff 48 89 df e8 b3 53 47 e1\\n[   57.578722] RSP: 0018:ffff88885f845a08 EFLAGS: 00010202\\n[   57.579207] RAX: 0000000000000002 RBX: ffff88812dfe8000 RCX: 0000000000000000\\n[   57.579830] RDX: ffff88885f845a60 RSI: ffff8881022dc300 RDI: 0000000000000000\\n[   57.580454] RBP: ffff88885f845a60 R08: 0000000000000001 R09: 0000000000000003\\n[   57.581076] R10: 00000000ffff1300 R11: 0000000000000002 R12: 0000000000000000\\n[   57.581695] R13: ffff8881047ffe00 R14: ffff888108dbee00 R15: ffff88814519b800\\n[   57.582313] FS:  0000000000000000(0000) GS:ffff88885f840000(0000) knlGS:0000000000000000\\n[   57.583040] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[   57.583564] CR2: 000000c4206aa000 CR3: 0000000103847001 CR4: 0000000000370eb0\\n[   57.584194] DR0: 0000000000000000 DR1: 0000000000000000 DR2:\\n0000000000000000\\n[   57.584820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:\\n0000000000000400\\n[   57.585440] Call Trace:\\n[   57.585721]  \u003cIRQ\u003e\\n[   57.585976]  ? __warn+0x7d/0x130\\n[   57.586323]  ? br_nf_local_in+0x157/0x180 [br_netfilter]\\n[   57.586811]  ? report_bug+0xf1/0x1c0\\n[   57.587177]  ? handle_bug+0x3f/0x70\\n[   57.587539]  ? exc_invalid_op+0x13/0x60\\n[   57.587929]  ? asm_exc_invalid_op+0x16/0x20\\n[   57.588336]  ? br_nf_local_in+0x157/0x180 [br_netfilter]\\n[   57.588825]  nf_hook_slow+0x3d/0xd0\\n[   57.589188]  ? br_handle_vlan+0x4b/0x110\\n[   57.589579]  br_pass_frame_up+0xfc/0x150\\n[   57.589970]  ? br_port_flags_change+0x40/0x40\\n[   57.590396]  br_handle_frame_finish+0x346/0x5e0\\n[   57.590837]  ? ipt_do_table+0x32e/0x430\\n[   57.591221]  ? br_handle_local_finish+0x20/0x20\\n[   57.591656]  br_nf_hook_thresh+0x4b/0xf0 [br_netfilter]\\n[   57.592286]  ? br_handle_local_finish+0x20/0x20\\n[   57.592802]  br_nf_pre_routing_finish+0x178/0x480 [br_netfilter]\\n[   57.593348]  ? br_handle_local_finish+0x20/0x20\\n[   57.593782]  ? nf_nat_ipv4_pre_routing+0x25/0x60 [nf_nat]\\n[   57.594279]  br_nf_pre_routing+0x24c/0x550 [br_netfilter]\\n[   57.594780]  ? br_nf_hook_thresh+0xf0/0xf0 [br_netfilter]\\n[   57.595280]  br_handle_frame+0x1f3/0x3d0\\n[   57.595676]  ? br_handle_local_finish+0x20/0x20\\n[   57.596118]  ? br_handle_frame_finish+0x5e0/0x5e0\\n[   57.596566]  __netif_receive_skb_core+0x25b/0xfc0\\n[   57.597017]  ? __napi_build_skb+0x37/0x40\\n[   57.597418]  __netif_receive_skb_list_core+0xfb/0x220\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: netfilter: br_netfilter: omitir el enlace de entrada conntrack para paquetes promiscos. Por razones hist\u00f3ricas, cuando el dispositivo puente est\u00e1 en modo promisco, los paquetes que se dirigen a los taps siguen la ruta del enlace de entrada del puente. Este parche agrega una workaround para restablecer el seguimiento de conexi\u00f3n de estos paquetes. Jianbo Liu informa se\u00f1ales de advertencia en su infraestructura de prueba donde los paquetes clonados llegan al enlace de entrada br_netfilter para confirmar el objeto conntrack. Elimine un bit de BR_INPUT_SKB_CB para anotar que este paquete ha llegado al gancho de entrada porque pasa al dispositivo puente para llegar a las derivaciones. [57.571874] ADVERTENCIA: CPU: 1 PID: 0 en net/bridge/br_netfilter_hooks.c:616 br_nf_local_in+0x157/0x180 [br_netfilter] [57.572749] M\u00f3dulos vinculados en: xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat escriba xt_conntrack nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry superposici\u00f3n rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_isc si ib_umad rdma_cm ib_ipoib iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5ctl mlx5_core [ 57.575158] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0+ #19 [ 57.575700] Nombre de hardware: PC est\u00e1ndar UEM (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 01/04/2014 [ 57.576662] RIP: 0010:br_nf_local_in+0x157/0x180 [br_netfilter] [ 57.577195] C\u00f3digo: fe ff ff 41 04 00 00 00 be 04 00 00 00 e9 4a ff ff ff be 04 00 00 00 48 89 ef e8 f3 a9 3c e1 66 83 ad b4 00 00 00 04 eb 91 \u0026lt;0f\u0026gt; 0b e9 f1 fe ff ff 0f 0b e9 df fe ff ff 48 89 df e8 b3 53 47 e1 [ 57.578722] RSP: 0018:ffff88885f845a08 EFLAGS: 00010202 [ 57.579207] RAX: 0000000000000002 RBX: ffff88812dfe8000 RCX: 0000000000000000 [ 57.579830] RDX: ffff88885f845a60 RSI: ffff8881022dc300 RDI: 0000000000000000 [ 57.580454] RBP: ffff88885f845a60 R08: 0000000000000001 R09: 0000000000000003 [ 57.581076] R10: 00000000ffff1300 R11: 0000000000000002 R12: 0000000 [ 57.581695] R13: ffff8881047ffe00 R14: ffff888108dbee00 R15: ffff88814519b800 [ 57.582313] FS: 0000000000000000(0000) GS:ffff88885f8400 00(0000) knlGS:0000000000000000 [ 57.583040] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.583564] CR2: 000000c4206aa000 CR3: 0000000103847001 CR4: 0000000000370eb0 [ 57.584194] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.584820] DR3: 00000000000000000 DR6: 00000000ffe0ff0 0000000000000400 [ 57.585440] Seguimiento de llamadas: [ 57.585721]  [ 57.585976] ? __advertir+0x7d/0x130 [ 57.586323] ? br_nf_local_in+0x157/0x180 [br_netfilter] [57.586811]? report_bug+0xf1/0x1c0 [57.587177]? handle_bug+0x3f/0x70 [57.587539]? exc_invalid_op+0x13/0x60 [57.587929]? asm_exc_invalid_op+0x16/0x20 [57.588336]? br_nf_local_in+0x157/0x180 [br_netfilter] [ 57.588825] nf_hook_slow+0x3d/0xd0 [ 57.589188] ? br_handle_vlan+0x4b/0x110 [ 57.589579] br_pass_frame_up+0xfc/0x150 [ 57.589970] ? br_port_flags_change+0x40/0x40 [ 57.590396] br_handle_frame_finish+0x346/0x5e0 [ 57.590837] ? ipt_do_table+0x32e/0x430 [57.591221]? br_handle_local_finish+0x20/0x20 [ 57.591656] br_nf_hook_thresh+0x4b/0xf0 [br_netfilter] [ 57.592286] ? br_handle_local_finish+0x20/0x20 [ 57.592802] br_nf_pre_routing_finish+0x178/0x480 [br_netfilter] [ 57.593348] ? br_handle_local_finish+0x20/0x20 [ 57.593782] ? nf_nat_ipv4_pre_routing+0x25/0x60 [nf_nat] [ 57.594279] br_nf_pre_routing+0x24c/0x550 [br_netfilter] [ 57.594780] ? br_nf_hook_thresh+0xf0/0xf0 [br_netfilter] [ 57.595280] br_handle_frame+0x1f3/0x3d0 [ 57.595676] ? br_handle_local_finish+0x20/0x20 [ 57.596118] ? br_handle_frame_finish+0x5e0/0x5e0 [ 57.596566] __netif_receive_skb_core+0x25b/0xfc0 [ 57.597017] ? __napi_build_skb+0x37/0x40 [ 57.597418] __netif_receive_skb_list_core+0xfb/0x220\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"5.15.157\",\"matchCriteriaId\":\"CB2F4D25-B857-48D0-BBDF-5EEEB37BE055\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.88\",\"matchCriteriaId\":\"B665F958-644E-434D-A78D-CCD1628D1774\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.29\",\"matchCriteriaId\":\"0999E154-1E68-41FA-8DE3-9A735E382224\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.8.8\",\"matchCriteriaId\":\"673B3328-389D-41A4-9617-669298635262\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"22BEDD49-2C6D-402D-9DBF-6646F6ECD10B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"DF73CB2A-DFFD-46FB-9BFE-AA394F27EA37\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"52048DDA-FC5A-4363-95A0-A6357B4D7F8C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"A06B2CCF-3F43-4FA9-8773-C83C3F5764B2\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CC559B26-5DFC-4B7A-A27C-B77DE755DFF9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B8EDB836-4E6A-4B71-B9B2-AA3E03E0F646\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CA277A6C-83EC-4536-9125-97B84C4FAF59\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3f59ac29dea0921637053908fe99268d157bbb9d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/43193174510ea4f3ce09b796e559a2fd9f148615\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/751de2012eafa4d46d8081056761fa0e9cc8a178\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/dceb683ab87ca3666a9bb5c0158528b646faedc4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3f59ac29dea0921637053908fe99268d157bbb9d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/43193174510ea4f3ce09b796e559a2fd9f148615\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/751de2012eafa4d46d8081056761fa0e9cc8a178\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/dceb683ab87ca3666a9bb5c0158528b646faedc4\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • 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.