cve-2024-50142
Vulnerability from cvelistv5
Published
2024-11-07 09:31
Modified
2024-11-08 15:58
Severity ?
Summary
xfrm: validate new SA's prefixlen using SA family when sel.family is unset
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/401ad99a5ae7180dd9449eac104cb755f442e7f3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7d9868180bd1e4cf37e7c5067362658971162366
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8df5cd51fd70c33aa1776e5cbcd82b0a86649d73
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bce1afaa212ec380bf971614f70909a27882b862
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e68dd80ba498265d2266b12dc3459164f4ff0c4a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f31398570acf0f0804c644006f7bfa9067106b0a
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/xfrm/xfrm_user.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f31398570acf",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "401ad99a5ae7",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "8df5cd51fd70",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "2d08a6c31c65",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "bce1afaa212e",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "7d9868180bd1",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "e68dd80ba498",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "3f0ab59e6537",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/xfrm/xfrm_user.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.12"
            },
            {
              "lessThan": "2.6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.323",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.285",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.229",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.170",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.115",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.59",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12-rc5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: validate new SA\u0027s prefixlen using SA family when sel.family is unset\n\nThis expands the validation introduced in commit 07bf7908950a (\"xfrm:\nValidate address prefix lengths in the xfrm selector.\")\n\nsyzbot created an SA with\n    usersa.sel.family = AF_UNSPEC\n    usersa.sel.prefixlen_s = 128\n    usersa.family = AF_INET\n\nBecause of the AF_UNSPEC selector, verify_newsa_info doesn\u0027t put\nlimits on prefixlen_{s,d}. But then copy_from_user_state sets\nx-\u003esel.family to usersa.family (AF_INET). Do the same conversion in\nverify_newsa_info before validating prefixlen_{s,d}, since that\u0027s how\nprefixlen is going to be used later on."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-08T15:58:49.112Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f31398570acf0f0804c644006f7bfa9067106b0a"
        },
        {
          "url": "https://git.kernel.org/stable/c/401ad99a5ae7180dd9449eac104cb755f442e7f3"
        },
        {
          "url": "https://git.kernel.org/stable/c/8df5cd51fd70c33aa1776e5cbcd82b0a86649d73"
        },
        {
          "url": "https://git.kernel.org/stable/c/2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71"
        },
        {
          "url": "https://git.kernel.org/stable/c/bce1afaa212ec380bf971614f70909a27882b862"
        },
        {
          "url": "https://git.kernel.org/stable/c/7d9868180bd1e4cf37e7c5067362658971162366"
        },
        {
          "url": "https://git.kernel.org/stable/c/e68dd80ba498265d2266b12dc3459164f4ff0c4a"
        },
        {
          "url": "https://git.kernel.org/stable/c/3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563"
        }
      ],
      "title": "xfrm: validate new SA\u0027s prefixlen using SA family when sel.family is unset",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50142",
    "datePublished": "2024-11-07T09:31:19.415Z",
    "dateReserved": "2024-10-21T19:36:19.956Z",
    "dateUpdated": "2024-11-08T15:58:49.112Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-50142\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-07T10:15:06.170\",\"lastModified\":\"2024-11-08T19:01:03.880\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nxfrm: validate new SA\u0027s prefixlen using SA family when sel.family is unset\\n\\nThis expands the validation introduced in commit 07bf7908950a (\\\"xfrm:\\nValidate address prefix lengths in the xfrm selector.\\\")\\n\\nsyzbot created an SA with\\n    usersa.sel.family = AF_UNSPEC\\n    usersa.sel.prefixlen_s = 128\\n    usersa.family = AF_INET\\n\\nBecause of the AF_UNSPEC selector, verify_newsa_info doesn\u0027t put\\nlimits on prefixlen_{s,d}. But then copy_from_user_state sets\\nx-\u003esel.family to usersa.family (AF_INET). Do the same conversion in\\nverify_newsa_info before validating prefixlen_{s,d}, since that\u0027s how\\nprefixlen is going to be used later on.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: xfrm: validar el prefijo de la nueva SA usando la familia de SA cuando sel.family no est\u00e1 configurado Esto expande la validaci\u00f3n introducida en el commit 07bf7908950a (\\\"xfrm: validar las longitudes de prefijo de direcci\u00f3n en el selector xfrm\\\"). syzbot cre\u00f3 una SA con usersa.sel.family = AF_UNSPEC usersa.sel.prefixlen_s = 128 usersa.family = AF_INET Debido al selector AF_UNSPEC, verificar_newsa_info no pone l\u00edmites en prefixlen_{s,d}. Pero luego copy_from_user_state establece x-\u0026gt;sel.family en usersa.family (AF_INET). Realice la misma conversi\u00f3n en verificar_newsa_info antes de validar prefixlen_{s,d}, ya que as\u00ed es como se usar\u00e1 prefixlen m\u00e1s adelante.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/401ad99a5ae7180dd9449eac104cb755f442e7f3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7d9868180bd1e4cf37e7c5067362658971162366\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8df5cd51fd70c33aa1776e5cbcd82b0a86649d73\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bce1afaa212ec380bf971614f70909a27882b862\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e68dd80ba498265d2266b12dc3459164f4ff0c4a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f31398570acf0f0804c644006f7bfa9067106b0a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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