CVE-2024-49568
Vulnerability from cvelistv5
Published
2025-01-11 12:35
Modified
2025-01-20 06:19
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg When receiving proposal msg in server, the fields v2_ext_offset/ eid_cnt/ism_gid_cnt in proposal msg are from the remote client and can not be fully trusted. Especially the field v2_ext_offset, once exceed the max value, there has the chance to access wrong address, and crash may happen. This patch checks the fields v2_ext_offset/eid_cnt/ism_gid_cnt before using them.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/295a92e3df32e72aff0f4bc25c310e349d07ffbf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/42f6beb2d5779429417b5f8115a4e3fa695d2a6c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7863c9f3d24ba49dbead7e03dfbe40deb5888fdf
Impacted products
Vendor Product Version
Linux Linux Version: 8c3dca341aea885249e08856c4380300b75d2cf5
Version: 8c3dca341aea885249e08856c4380300b75d2cf5
Version: 8c3dca341aea885249e08856c4380300b75d2cf5
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   Linux Linux Version: 5.10
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/smc/af_smc.c",
            "net/smc/smc_clc.c",
            "net/smc/smc_clc.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "295a92e3df32e72aff0f4bc25c310e349d07ffbf",
              "status": "affected",
              "version": "8c3dca341aea885249e08856c4380300b75d2cf5",
              "versionType": "git"
            },
            {
              "lessThan": "42f6beb2d5779429417b5f8115a4e3fa695d2a6c",
              "status": "affected",
              "version": "8c3dca341aea885249e08856c4380300b75d2cf5",
              "versionType": "git"
            },
            {
              "lessThan": "7863c9f3d24ba49dbead7e03dfbe40deb5888fdf",
              "status": "affected",
              "version": "8c3dca341aea885249e08856c4380300b75d2cf5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/smc/af_smc.c",
            "net/smc/smc_clc.c",
            "net/smc/smc_clc.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "lessThan": "5.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.68",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.7",
              "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/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg\n\nWhen receiving proposal msg in server, the fields v2_ext_offset/\neid_cnt/ism_gid_cnt in proposal msg are from the remote client\nand can not be fully trusted. Especially the field v2_ext_offset,\nonce exceed the max value, there has the chance to access wrong\naddress, and crash may happen.\n\nThis patch checks the fields v2_ext_offset/eid_cnt/ism_gid_cnt\nbefore using them."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-01-20T06:19:16.194Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/295a92e3df32e72aff0f4bc25c310e349d07ffbf"
        },
        {
          "url": "https://git.kernel.org/stable/c/42f6beb2d5779429417b5f8115a4e3fa695d2a6c"
        },
        {
          "url": "https://git.kernel.org/stable/c/7863c9f3d24ba49dbead7e03dfbe40deb5888fdf"
        }
      ],
      "title": "net/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-49568",
    "datePublished": "2025-01-11T12:35:36.190Z",
    "dateReserved": "2025-01-11T12:34:02.664Z",
    "dateUpdated": "2025-01-20T06:19:16.194Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-49568\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-01-11T13:15:23.637\",\"lastModified\":\"2025-01-11T13:15:23.637\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg\\n\\nWhen receiving proposal msg in server, the fields v2_ext_offset/\\neid_cnt/ism_gid_cnt in proposal msg are from the remote client\\nand can not be fully trusted. Especially the field v2_ext_offset,\\nonce exceed the max value, there has the chance to access wrong\\naddress, and crash may happen.\\n\\nThis patch checks the fields v2_ext_offset/eid_cnt/ism_gid_cnt\\nbefore using them.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/295a92e3df32e72aff0f4bc25c310e349d07ffbf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/42f6beb2d5779429417b5f8115a4e3fa695d2a6c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7863c9f3d24ba49dbead7e03dfbe40deb5888fdf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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