cve-2024-56647
Vulnerability from cvelistv5
Published
2024-12-27 15:02
Modified
2025-01-20 06:24
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: Fix icmp host relookup triggering ip_rt_bug arp link failure may trigger ip_rt_bug while xfrm enabled, call trace is: WARNING: CPU: 0 PID: 0 at net/ipv4/route.c:1241 ip_rt_bug+0x14/0x20 Modules linked in: CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.0-rc6-00077-g2e1b3cc9d7f7 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:ip_rt_bug+0x14/0x20 Call Trace: <IRQ> ip_send_skb+0x14/0x40 __icmp_send+0x42d/0x6a0 ipv4_link_failure+0xe2/0x1d0 arp_error_report+0x3c/0x50 neigh_invalidate+0x8d/0x100 neigh_timer_handler+0x2e1/0x330 call_timer_fn+0x21/0x120 __run_timer_base.part.0+0x1c9/0x270 run_timer_softirq+0x4c/0x80 handle_softirqs+0xac/0x280 irq_exit_rcu+0x62/0x80 sysvec_apic_timer_interrupt+0x77/0x90 The script below reproduces this scenario: ip xfrm policy add src 0.0.0.0/0 dst 0.0.0.0/0 \ dir out priority 0 ptype main flag localok icmp ip l a veth1 type veth ip a a 192.168.141.111/24 dev veth0 ip l s veth0 up ping 192.168.141.155 -c 1 icmp_route_lookup() create input routes for locally generated packets while xfrm relookup ICMP traffic.Then it will set input route (dst->out = ip_rt_bug) to skb for DESTUNREACH. For ICMP err triggered by locally generated packets, dst->dev of output route is loopback. Generally, xfrm relookup verification is not required on loopback interfaces (net.ipv4.conf.lo.disable_xfrm = 1). Skip icmp relookup for locally generated packets to fix it.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9545011e7b2a8fc0cbd6e387a09f12cd41d7d82fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c44daa7e3c73229f7ac74985acb8c7fb909c4e0aPatch
Impacted products
Vendor Product Version
Linux Linux Version: 8b7817f3a959ed99d7443afc12f78a7e1fcc2063
Version: 8b7817f3a959ed99d7443afc12f78a7e1fcc2063
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   Linux Linux Version: 2.6.25
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{
   containers: {
      cna: {
         affected: [
            {
               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
                  "net/ipv4/icmp.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     lessThan: "9545011e7b2a8fc0cbd6e387a09f12cd41d7d82f",
                     status: "affected",
                     version: "8b7817f3a959ed99d7443afc12f78a7e1fcc2063",
                     versionType: "git",
                  },
                  {
                     lessThan: "c44daa7e3c73229f7ac74985acb8c7fb909c4e0a",
                     status: "affected",
                     version: "8b7817f3a959ed99d7443afc12f78a7e1fcc2063",
                     versionType: "git",
                  },
               ],
            },
            {
               defaultStatus: "affected",
               product: "Linux",
               programFiles: [
                  "net/ipv4/icmp.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     status: "affected",
                     version: "2.6.25",
                  },
                  {
                     lessThan: "2.6.25",
                     status: "unaffected",
                     version: "0",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.12.*",
                     status: "unaffected",
                     version: "6.12.5",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "*",
                     status: "unaffected",
                     version: "6.13",
                     versionType: "original_commit_for_fix",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: Fix icmp host relookup triggering ip_rt_bug\n\narp link failure may trigger ip_rt_bug while xfrm enabled, call trace is:\n\nWARNING: CPU: 0 PID: 0 at net/ipv4/route.c:1241 ip_rt_bug+0x14/0x20\nModules linked in:\nCPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.0-rc6-00077-g2e1b3cc9d7f7\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996),\nBIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\nRIP: 0010:ip_rt_bug+0x14/0x20\nCall Trace:\n <IRQ>\n ip_send_skb+0x14/0x40\n __icmp_send+0x42d/0x6a0\n ipv4_link_failure+0xe2/0x1d0\n arp_error_report+0x3c/0x50\n neigh_invalidate+0x8d/0x100\n neigh_timer_handler+0x2e1/0x330\n call_timer_fn+0x21/0x120\n __run_timer_base.part.0+0x1c9/0x270\n run_timer_softirq+0x4c/0x80\n handle_softirqs+0xac/0x280\n irq_exit_rcu+0x62/0x80\n sysvec_apic_timer_interrupt+0x77/0x90\n\nThe script below reproduces this scenario:\nip xfrm policy add src 0.0.0.0/0 dst 0.0.0.0/0 \\\n\tdir out priority 0 ptype main flag localok icmp\nip l a veth1 type veth\nip a a 192.168.141.111/24 dev veth0\nip l s veth0 up\nping 192.168.141.155 -c 1\n\nicmp_route_lookup() create input routes for locally generated packets\nwhile xfrm relookup ICMP traffic.Then it will set input route\n(dst->out = ip_rt_bug) to skb for DESTUNREACH.\n\nFor ICMP err triggered by locally generated packets, dst->dev of output\nroute is loopback. Generally, xfrm relookup verification is not required\non loopback interfaces (net.ipv4.conf.lo.disable_xfrm = 1).\n\nSkip icmp relookup for locally generated packets to fix it.",
            },
         ],
         providerMetadata: {
            dateUpdated: "2025-01-20T06:24:59.783Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
         },
         references: [
            {
               url: "https://git.kernel.org/stable/c/9545011e7b2a8fc0cbd6e387a09f12cd41d7d82f",
            },
            {
               url: "https://git.kernel.org/stable/c/c44daa7e3c73229f7ac74985acb8c7fb909c4e0a",
            },
         ],
         title: "net: Fix icmp host relookup triggering ip_rt_bug",
         x_generator: {
            engine: "bippy-5f407fcff5a0",
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2024-56647",
      datePublished: "2024-12-27T15:02:47.969Z",
      dateReserved: "2024-12-27T15:00:39.840Z",
      dateUpdated: "2025-01-20T06:24:59.783Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2024-56647\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-12-27T15:15:24.467\",\"lastModified\":\"2025-01-06T19:45:53.687\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: Fix icmp host relookup triggering ip_rt_bug\\n\\narp link failure may trigger ip_rt_bug while xfrm enabled, call trace is:\\n\\nWARNING: CPU: 0 PID: 0 at net/ipv4/route.c:1241 ip_rt_bug+0x14/0x20\\nModules linked in:\\nCPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.0-rc6-00077-g2e1b3cc9d7f7\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996),\\nBIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\\nRIP: 0010:ip_rt_bug+0x14/0x20\\nCall Trace:\\n <IRQ>\\n ip_send_skb+0x14/0x40\\n __icmp_send+0x42d/0x6a0\\n ipv4_link_failure+0xe2/0x1d0\\n arp_error_report+0x3c/0x50\\n neigh_invalidate+0x8d/0x100\\n neigh_timer_handler+0x2e1/0x330\\n call_timer_fn+0x21/0x120\\n __run_timer_base.part.0+0x1c9/0x270\\n run_timer_softirq+0x4c/0x80\\n handle_softirqs+0xac/0x280\\n irq_exit_rcu+0x62/0x80\\n sysvec_apic_timer_interrupt+0x77/0x90\\n\\nThe script below reproduces this scenario:\\nip xfrm policy add src 0.0.0.0/0 dst 0.0.0.0/0 \\\\\\n\\tdir out priority 0 ptype main flag localok icmp\\nip l a veth1 type veth\\nip a a 192.168.141.111/24 dev veth0\\nip l s veth0 up\\nping 192.168.141.155 -c 1\\n\\nicmp_route_lookup() create input routes for locally generated packets\\nwhile xfrm relookup ICMP traffic.Then it will set input route\\n(dst->out = ip_rt_bug) to skb for DESTUNREACH.\\n\\nFor ICMP err triggered by locally generated packets, dst->dev of output\\nroute is loopback. Generally, xfrm relookup verification is not required\\non loopback interfaces (net.ipv4.conf.lo.disable_xfrm = 1).\\n\\nSkip icmp relookup for locally generated packets to fix it.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: Fix icmp host relookup triggering ip_rt_bug arp link failure may trigger ip_rt_bug while xfrm enabled, call trace is: ADVERTENCIA: CPU: 0 PID: 0 en net/ipv4/route.c:1241 ip_rt_bug+0x14/0x20 Módulos vinculados en: CPU: 0 UID: 0 PID: 0 Comm: swapper/0 No contaminado 6.12.0-rc6-00077-g2e1b3cc9d7f7 Nombre del hardware: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 01/04/2014 RIP: 0010:ip_rt_bug+0x14/0x20 Seguimiento de llamadas:  ip_send_skb+0x14/0x40 __icmp_send+0x42d/0x6a0 error de enlace ipv4+0xe2/0x1d0 informe de error arp+0x3c/0x50 invalidación vecinal+0x8d/0x100 controlador de temporizador vecinal+0x2e1/0x330 función de temporizador de llamada+0x21/0x120 __base de temporizador de ejecución.parte.0+0x1c9/0x270 temporizador de ejecución softirq+0x4c/0x80 controlador de softirqs+0xac/0x280 irq_exit_rcu+0x62/0x80 sysvec_apic_timer_interrupt+0x77/0x90 El script a continuación reproduce este escenario: ip xfrm policy add src 0.0.0.0/0 dst 0.0.0.0/0 \\\\ dir out priority 0 ptype main flag localok icmp ip la veth1 type veth ip aa 192.168.141.111/24 dev veth0 ip ls veth0 up ping 192.168.141.155 -c 1 icmp_route_lookup() crea rutas de entrada para paquetes generados localmente mientras xfrm vuelve a buscar tráfico ICMP. Luego, establecerá la ruta de entrada (dst-&gt;out = ip_rt_bug) en skb para DESTUNREACH. Para el error ICMP activado por paquetes generados localmente, dst-&gt;dev de la ruta de salida es loopback. En general, no se requiere la verificación de rebúsqueda de xfrm en interfaces de bucle invertido (net.ipv4.conf.lo.disable_xfrm = 1). Omita la rebúsqueda de ICMP para paquetes generados localmente para solucionarlo.\"}],\"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:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"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:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.25\",\"versionEndExcluding\":\"6.12.5\",\"matchCriteriaId\":\"C9393D06-5F2B-4F68-B5D5-C0819E4C7197\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"62567B3C-6CEE-46D0-BC2E-B3717FBF7D13\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/9545011e7b2a8fc0cbd6e387a09f12cd41d7d82f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c44daa7e3c73229f7ac74985acb8c7fb909c4e0a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
   },
}


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