nvd-json-data-feeds/CVE-2024/CVE-2024-477xx/CVE-2024-47734.json

{
  "id": "CVE-2024-47734",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-10-21T13:15:03.547",
  "lastModified": "2024-10-23T17:16:13.457",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: Fix unnecessary warnings and logs from bond_xdp_get_xmit_slave()\n\nsyzbot reported a WARNING in bond_xdp_get_xmit_slave. To reproduce\nthis[1], one bond device (bond1) has xdpdrv, which increases\nbpf_master_redirect_enabled_key. Another bond device (bond0) which is\nunsupported by XDP but its slave (veth3) has xdpgeneric that returns\nXDP_TX. This triggers WARN_ON_ONCE() from the xdp_master_redirect().\nTo reduce unnecessary warnings and improve log management, we need to\ndelete the WARN_ON_ONCE() and add ratelimit to the netdev_err().\n\n[1] Steps to reproduce:\n    # Needs tx_xdp with return XDP_TX;\n    ip l add veth0 type veth peer veth1\n    ip l add veth3 type veth peer veth4\n    ip l add bond0 type bond mode 6 # BOND_MODE_ALB, unsupported by XDP\n    ip l add bond1 type bond # BOND_MODE_ROUNDROBIN by default\n    ip l set veth0 master bond1\n    ip l set bond1 up\n    # Increases bpf_master_redirect_enabled_key\n    ip l set dev bond1 xdpdrv object tx_xdp.o section xdp_tx\n    ip l set veth3 master bond0\n    ip l set bond0 up\n    ip l set veth4 up\n    # Triggers WARN_ON_ONCE() from the xdp_master_redirect()\n    ip l set veth3 xdpgeneric object tx_xdp.o section xdp_tx"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bonding: Corrija las advertencias y registros innecesarios de bond_xdp_get_xmit_slave() syzbot inform\u00f3 una ADVERTENCIA en bond_xdp_get_xmit_slave. Para reproducir esto[1], un dispositivo de enlace (bond1) tiene xdpdrv, que aumenta bpf_master_redirect_enabled_key. Otro dispositivo de enlace (bond0) que no es compatible con XDP pero su esclavo (veth3) tiene xdpgeneric que devuelve XDP_TX. Esto activa WARN_ON_ONCE() desde xdp_master_redirect(). Para reducir las advertencias innecesarias y mejorar la gesti\u00f3n de registros, debemos eliminar WARN_ON_ONCE() y agregar ratelimit a netdev_err(). [1] Pasos para reproducir: # Necesita tx_xdp con return XDP_TX; ip l add veth0 type veth peer veth1 ip l add veth3 type veth peer veth4 ip l add bond0 type bond mode 6 # BOND_MODE_ALB, no compatible con XDP ip l add bond1 type bond # BOND_MODE_ROUNDROBIN de forma predeterminada ip l set veth0 master bond1 ip l set bond1 up # Aumenta bpf_master_redirect_enabled_key ip l set dev bond1 xdpdrv object tx_xdp.o section xdp_tx ip l set veth3 master bond0 ip l set bond0 up ip l set veth4 up # Activa WARN_ON_ONCE() desde xdp_master_redirect() ip l set veth3 xdpgeneric object tx_xdp.o section xdp_tx"
    }
  ],
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      {
        "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:N/A:N",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
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  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
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