cve-2024-50258
Vulnerability from cvelistv5
Published
2024-11-09 10:15
Modified
2024-12-19 09:36
Severity ?
EPSS score ?
0.04% (0.08251)
Summary
In the Linux kernel, the following vulnerability has been resolved: net: fix crash when config small gso_max_size/gso_ipv4_max_size Config a small gso_max_size/gso_ipv4_max_size will lead to an underflow in sk_dst_gso_max_size(), which may trigger a BUG_ON crash, because sk->sk_gso_max_size would be much bigger than device limits. Call Trace: tcp_write_xmit tso_segs = tcp_init_tso_segs(skb, mss_now); tcp_set_skb_tso_segs tcp_skb_pcount_set // skb->len = 524288, mss_now = 8 // u16 tso_segs = 524288/8 = 65535 -> 0 tso_segs = DIV_ROUND_UP(skb->len, mss_now) BUG_ON(!tso_segs) Add check for the minimum value of gso_max_size and gso_ipv4_max_size.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9ab5cf19fb0e4680f95e506d6c544259bf1111c4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ac5977001eee7660c643f8e07a2de9001990b7b8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e72fd1389a5364bc6aa6312ecf30bdb5891b9486Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e9365368b483328639c03fc730448dccd5a25b6b
Impacted products
Vendor Product Version
Linux Linux Version: 46e6b992c2502b094e61da6994f1363f3b7c1413
Version: 46e6b992c2502b094e61da6994f1363f3b7c1413
Version: 46e6b992c2502b094e61da6994f1363f3b7c1413
Version: 46e6b992c2502b094e61da6994f1363f3b7c1413
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   Linux Linux Version: 4.16
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{
   containers: {
      cna: {
         affected: [
            {
               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
                  "net/core/rtnetlink.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     lessThan: "e9365368b483328639c03fc730448dccd5a25b6b",
                     status: "affected",
                     version: "46e6b992c2502b094e61da6994f1363f3b7c1413",
                     versionType: "git",
                  },
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                     lessThan: "ac5977001eee7660c643f8e07a2de9001990b7b8",
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                     version: "46e6b992c2502b094e61da6994f1363f3b7c1413",
                     versionType: "git",
                  },
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                     status: "affected",
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                     versionType: "git",
                  },
                  {
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                     versionType: "git",
                  },
               ],
            },
            {
               defaultStatus: "affected",
               product: "Linux",
               programFiles: [
                  "net/core/rtnetlink.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     status: "affected",
                     version: "4.16",
                  },
                  {
                     lessThan: "4.16",
                     status: "unaffected",
                     version: "0",
                     versionType: "semver",
                  },
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                     lessThanOrEqual: "6.1.*",
                     status: "unaffected",
                     version: "6.1.120",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.6.*",
                     status: "unaffected",
                     version: "6.6.60",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.11.*",
                     status: "unaffected",
                     version: "6.11.7",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "*",
                     status: "unaffected",
                     version: "6.12",
                     versionType: "original_commit_for_fix",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix crash when config small gso_max_size/gso_ipv4_max_size\n\nConfig a small gso_max_size/gso_ipv4_max_size will lead to an underflow\nin sk_dst_gso_max_size(), which may trigger a BUG_ON crash,\nbecause sk->sk_gso_max_size would be much bigger than device limits.\nCall Trace:\ntcp_write_xmit\n    tso_segs = tcp_init_tso_segs(skb, mss_now);\n        tcp_set_skb_tso_segs\n            tcp_skb_pcount_set\n                // skb->len = 524288, mss_now = 8\n                // u16 tso_segs = 524288/8 = 65535 -> 0\n                tso_segs = DIV_ROUND_UP(skb->len, mss_now)\n    BUG_ON(!tso_segs)\nAdd check for the minimum value of gso_max_size and gso_ipv4_max_size.",
            },
         ],
         providerMetadata: {
            dateUpdated: "2024-12-19T09:36:43.225Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
         },
         references: [
            {
               url: "https://git.kernel.org/stable/c/e9365368b483328639c03fc730448dccd5a25b6b",
            },
            {
               url: "https://git.kernel.org/stable/c/ac5977001eee7660c643f8e07a2de9001990b7b8",
            },
            {
               url: "https://git.kernel.org/stable/c/e72fd1389a5364bc6aa6312ecf30bdb5891b9486",
            },
            {
               url: "https://git.kernel.org/stable/c/9ab5cf19fb0e4680f95e506d6c544259bf1111c4",
            },
         ],
         title: "net: fix crash when config small gso_max_size/gso_ipv4_max_size",
         x_generator: {
            engine: "bippy-5f407fcff5a0",
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2024-50258",
      datePublished: "2024-11-09T10:15:11.311Z",
      dateReserved: "2024-10-21T19:36:19.981Z",
      dateUpdated: "2024-12-19T09:36:43.225Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2024-50258\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-09T11:15:11.413\",\"lastModified\":\"2024-12-14T21:15:34.100\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: fix crash when config small gso_max_size/gso_ipv4_max_size\\n\\nConfig a small gso_max_size/gso_ipv4_max_size will lead to an underflow\\nin sk_dst_gso_max_size(), which may trigger a BUG_ON crash,\\nbecause sk->sk_gso_max_size would be much bigger than device limits.\\nCall Trace:\\ntcp_write_xmit\\n    tso_segs = tcp_init_tso_segs(skb, mss_now);\\n        tcp_set_skb_tso_segs\\n            tcp_skb_pcount_set\\n                // skb->len = 524288, mss_now = 8\\n                // u16 tso_segs = 524288/8 = 65535 -> 0\\n                tso_segs = DIV_ROUND_UP(skb->len, mss_now)\\n    BUG_ON(!tso_segs)\\nAdd check for the minimum value of gso_max_size and gso_ipv4_max_size.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: se corrige el fallo al configurar un gso_max_size/gso_ipv4_max_size pequeño. Configurar un gso_max_size/gso_ipv4_max_size pequeño provocará un desbordamiento en sk_dst_gso_max_size(), lo que puede desencadenar un fallo BUG_ON, porque sk->sk_gso_max_size sería mucho mayor que los límites del dispositivo. Seguimiento de llamadas: tcp_write_xmit tso_segs = tcp_init_tso_segs(skb, mss_now); tcp_set_skb_tso_segs tcp_skb_pcount_set // skb->len = 524288, mss_now = 8 // u16 tso_segs = 524288/8 = 65535 -> 0 tso_segs = DIV_ROUND_UP(skb->len, mss_now) BUG_ON(!tso_segs) Agregar verificación para el valor mínimo de gso_max_size y gso_ipv4_max_size.\"}],\"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\":\"CWE-191\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.16\",\"versionEndIncluding\":\"6.6.60\",\"matchCriteriaId\":\"3963E830-C9E7-4330-AF4D-17893E6C5472\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndIncluding\":\"6.11.7\",\"matchCriteriaId\":\"B29C9329-20A2-46C3-8262-6601FBA189E8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"7F361E1D-580F-4A2D-A509-7615F73167A1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"925478D0-3E3D-4E6F-ACD5-09F28D5DF82C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"3C95E234-D335-4B6C-96BF-E2CEBD8654ED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"E0F717D8-3014-4F84-8086-0124B2111379\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"24DBE6C7-2AAE-4818-AED2-E131F153D2FA\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/9ab5cf19fb0e4680f95e506d6c544259bf1111c4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ac5977001eee7660c643f8e07a2de9001990b7b8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e72fd1389a5364bc6aa6312ecf30bdb5891b9486\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e9365368b483328639c03fc730448dccd5a25b6b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
   },
}


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