cve-2024-50285
Vulnerability from cvelistv5
Published
2024-11-19 01:30
Modified
2024-12-19 09:37
Severity ?
EPSS score ?
0.03% (0.04369)
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: check outstanding simultaneous SMB operations If Client send simultaneous SMB operations to ksmbd, It exhausts too much memory through the "ksmbd_work_cache”. It will cause OOM issue. ksmbd has a credit mechanism but it can't handle this problem. This patch add the check if it exceeds max credits to prevent this problem by assuming that one smb request consumes at least one credit.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0a77d947f599b1f39065015bec99390d0c0022eePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1f993777275cbd8f74765c4f9d9285cb907c9be5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e257ac6fe138623cf59fca8898abdf659dbc8356Patch
Impacted products
Vendor Product Version
Linux Linux Version: 0626e6641f6b467447c81dd7678a69c66f7746cf
Version: 0626e6641f6b467447c81dd7678a69c66f7746cf
Version: 0626e6641f6b467447c81dd7678a69c66f7746cf
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   Linux Linux Version: 5.15
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{
   containers: {
      cna: {
         affected: [
            {
               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
                  "fs/smb/server/connection.c",
                  "fs/smb/server/connection.h",
                  "fs/smb/server/server.c",
                  "fs/smb/server/smb_common.c",
                  "fs/smb/server/smb_common.h",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     lessThan: "1f993777275cbd8f74765c4f9d9285cb907c9be5",
                     status: "affected",
                     version: "0626e6641f6b467447c81dd7678a69c66f7746cf",
                     versionType: "git",
                  },
                  {
                     lessThan: "e257ac6fe138623cf59fca8898abdf659dbc8356",
                     status: "affected",
                     version: "0626e6641f6b467447c81dd7678a69c66f7746cf",
                     versionType: "git",
                  },
                  {
                     lessThan: "0a77d947f599b1f39065015bec99390d0c0022ee",
                     status: "affected",
                     version: "0626e6641f6b467447c81dd7678a69c66f7746cf",
                     versionType: "git",
                  },
               ],
            },
            {
               defaultStatus: "affected",
               product: "Linux",
               programFiles: [
                  "fs/smb/server/connection.c",
                  "fs/smb/server/connection.h",
                  "fs/smb/server/server.c",
                  "fs/smb/server/smb_common.c",
                  "fs/smb/server/smb_common.h",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     status: "affected",
                     version: "5.15",
                  },
                  {
                     lessThan: "5.15",
                     status: "unaffected",
                     version: "0",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.6.*",
                     status: "unaffected",
                     version: "6.6.61",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.11.*",
                     status: "unaffected",
                     version: "6.11.8",
                     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\nksmbd: check outstanding simultaneous SMB operations\n\nIf Client send simultaneous SMB operations to ksmbd, It exhausts too much\nmemory through the \"ksmbd_work_cache”. It will cause OOM issue.\nksmbd has a credit mechanism but it can't handle this problem. This patch\nadd the check if it exceeds max credits to prevent this problem by assuming\nthat one smb request consumes at least one credit.",
            },
         ],
         providerMetadata: {
            dateUpdated: "2024-12-19T09:37:19.038Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
         },
         references: [
            {
               url: "https://git.kernel.org/stable/c/1f993777275cbd8f74765c4f9d9285cb907c9be5",
            },
            {
               url: "https://git.kernel.org/stable/c/e257ac6fe138623cf59fca8898abdf659dbc8356",
            },
            {
               url: "https://git.kernel.org/stable/c/0a77d947f599b1f39065015bec99390d0c0022ee",
            },
         ],
         title: "ksmbd: check outstanding simultaneous SMB operations",
         x_generator: {
            engine: "bippy-5f407fcff5a0",
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2024-50285",
      datePublished: "2024-11-19T01:30:28.603Z",
      dateReserved: "2024-10-21T19:36:19.984Z",
      dateUpdated: "2024-12-19T09:37:19.038Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2024-50285\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-19T02:16:30.787\",\"lastModified\":\"2024-11-27T15:31:58.063\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nksmbd: check outstanding simultaneous SMB operations\\n\\nIf Client send simultaneous SMB operations to ksmbd, It exhausts too much\\nmemory through the \\\"ksmbd_work_cache”. It will cause OOM issue.\\nksmbd has a credit mechanism but it can't handle this problem. This patch\\nadd the check if it exceeds max credits to prevent this problem by assuming\\nthat one smb request consumes at least one credit.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ksmbd: comprobar operaciones SMB simultáneas pendientes Si el cliente envía operaciones SMB simultáneas a ksmbd, agota demasiada memoria a través de \\\"ksmbd_work_cache\\\". Esto provocará un problema de OOM. ksmbd tiene un mecanismo de crédito, pero no puede solucionar este problema. Este parche agrega la comprobación si excede los créditos máximos para evitar este problema al suponer que una solicitud SMB consume al menos un crédito.\"}],\"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-770\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.6.61\",\"matchCriteriaId\":\"21D07F56-30DD-4B01-9F57-EA81F06E6075\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.11.8\",\"matchCriteriaId\":\"0BD000F7-3DAD-4DD3-8906-98EA1EC67E95\"},{\"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\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"24B88717-53F5-42AA-9B72-14C707639E3F\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0a77d947f599b1f39065015bec99390d0c0022ee\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1f993777275cbd8f74765c4f9d9285cb907c9be5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e257ac6fe138623cf59fca8898abdf659dbc8356\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
   },
}


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