CVE-2021-47248 (GCVE-0-2021-47248)
Vulnerability from cvelistv5
Published
2024-05-21 14:19
Modified
2025-05-04 07:07
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: udp: fix race between close() and udp_abort() Kaustubh reported and diagnosed a panic in udp_lib_lookup(). The root cause is udp_abort() racing with close(). Both racing functions acquire the socket lock, but udp{v6}_destroy_sock() release it before performing destructive actions. We can't easily extend the socket lock scope to avoid the race, instead use the SOCK_DEAD flag to prevent udp_abort from doing any action when the critical race happens. Diagnosed-and-tested-by: Kaustubh Pandey <kapandey@codeaurora.org>
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/2f73448041bd0682d4b552cfd314ace66107f1ad Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/5a88477c1c85e4baa51e91f2d40f2166235daa56 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/65310b0aff86980a011c7c7bfa487a333d4ca241 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/8729ec8a2238152a4afc212a331a6cd2c61aeeac Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/a0882f68f54f7a8b6308261acee9bd4faab5a69e Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/a8b897c7bcd47f4147d066e22cc01d1026d7640e Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/e3c36c773aed0fef8b1d3d555b43393ec564400f Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/2f73448041bd0682d4b552cfd314ace66107f1ad Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/5a88477c1c85e4baa51e91f2d40f2166235daa56 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/65310b0aff86980a011c7c7bfa487a333d4ca241 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/8729ec8a2238152a4afc212a331a6cd2c61aeeac Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/a0882f68f54f7a8b6308261acee9bd4faab5a69e Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/a8b897c7bcd47f4147d066e22cc01d1026d7640e Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/e3c36c773aed0fef8b1d3d555b43393ec564400f Patch
Impacted products
Vendor Product Version
Linux Linux Version: 5d77dca82839ef016a93ad7acd7058b14d967752
Version: 5d77dca82839ef016a93ad7acd7058b14d967752
Version: 5d77dca82839ef016a93ad7acd7058b14d967752
Version: 5d77dca82839ef016a93ad7acd7058b14d967752
Version: 5d77dca82839ef016a93ad7acd7058b14d967752
Version: 5d77dca82839ef016a93ad7acd7058b14d967752
Version: 5d77dca82839ef016a93ad7acd7058b14d967752
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47248",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-23T18:04:43.420239Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:13:24.395Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:32:07.937Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/e3c36c773aed0fef8b1d3d555b43393ec564400f"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/a0882f68f54f7a8b6308261acee9bd4faab5a69e"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/2f73448041bd0682d4b552cfd314ace66107f1ad"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/5a88477c1c85e4baa51e91f2d40f2166235daa56"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/8729ec8a2238152a4afc212a331a6cd2c61aeeac"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/65310b0aff86980a011c7c7bfa487a333d4ca241"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/a8b897c7bcd47f4147d066e22cc01d1026d7640e"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/ipv4/udp.c",
            "net/ipv6/udp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e3c36c773aed0fef8b1d3d555b43393ec564400f",
              "status": "affected",
              "version": "5d77dca82839ef016a93ad7acd7058b14d967752",
              "versionType": "git"
            },
            {
              "lessThan": "a0882f68f54f7a8b6308261acee9bd4faab5a69e",
              "status": "affected",
              "version": "5d77dca82839ef016a93ad7acd7058b14d967752",
              "versionType": "git"
            },
            {
              "lessThan": "2f73448041bd0682d4b552cfd314ace66107f1ad",
              "status": "affected",
              "version": "5d77dca82839ef016a93ad7acd7058b14d967752",
              "versionType": "git"
            },
            {
              "lessThan": "5a88477c1c85e4baa51e91f2d40f2166235daa56",
              "status": "affected",
              "version": "5d77dca82839ef016a93ad7acd7058b14d967752",
              "versionType": "git"
            },
            {
              "lessThan": "8729ec8a2238152a4afc212a331a6cd2c61aeeac",
              "status": "affected",
              "version": "5d77dca82839ef016a93ad7acd7058b14d967752",
              "versionType": "git"
            },
            {
              "lessThan": "65310b0aff86980a011c7c7bfa487a333d4ca241",
              "status": "affected",
              "version": "5d77dca82839ef016a93ad7acd7058b14d967752",
              "versionType": "git"
            },
            {
              "lessThan": "a8b897c7bcd47f4147d066e22cc01d1026d7640e",
              "status": "affected",
              "version": "5d77dca82839ef016a93ad7acd7058b14d967752",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/ipv4/udp.c",
            "net/ipv6/udp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.9"
            },
            {
              "lessThan": "4.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.274",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.238",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.196",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.128",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.12.*",
              "status": "unaffected",
              "version": "5.12.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.274",
                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.238",
                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.196",
                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.128",
                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.46",
                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.12.13",
                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.13",
                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nudp: fix race between close() and udp_abort()\n\nKaustubh reported and diagnosed a panic in udp_lib_lookup().\nThe root cause is udp_abort() racing with close(). Both\nracing functions acquire the socket lock, but udp{v6}_destroy_sock()\nrelease it before performing destructive actions.\n\nWe can\u0027t easily extend the socket lock scope to avoid the race,\ninstead use the SOCK_DEAD flag to prevent udp_abort from doing\nany action when the critical race happens.\n\nDiagnosed-and-tested-by: Kaustubh Pandey \u003ckapandey@codeaurora.org\u003e"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:07:06.760Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e3c36c773aed0fef8b1d3d555b43393ec564400f"
        },
        {
          "url": "https://git.kernel.org/stable/c/a0882f68f54f7a8b6308261acee9bd4faab5a69e"
        },
        {
          "url": "https://git.kernel.org/stable/c/2f73448041bd0682d4b552cfd314ace66107f1ad"
        },
        {
          "url": "https://git.kernel.org/stable/c/5a88477c1c85e4baa51e91f2d40f2166235daa56"
        },
        {
          "url": "https://git.kernel.org/stable/c/8729ec8a2238152a4afc212a331a6cd2c61aeeac"
        },
        {
          "url": "https://git.kernel.org/stable/c/65310b0aff86980a011c7c7bfa487a333d4ca241"
        },
        {
          "url": "https://git.kernel.org/stable/c/a8b897c7bcd47f4147d066e22cc01d1026d7640e"
        }
      ],
      "title": "udp: fix race between close() and udp_abort()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47248",
    "datePublished": "2024-05-21T14:19:45.588Z",
    "dateReserved": "2024-04-10T18:59:19.536Z",
    "dateUpdated": "2025-05-04T07:07:06.760Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47248\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-21T15:15:13.780\",\"lastModified\":\"2025-04-30T15:21:04.770\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nudp: fix race between close() and udp_abort()\\n\\nKaustubh reported and diagnosed a panic in udp_lib_lookup().\\nThe root cause is udp_abort() racing with close(). Both\\nracing functions acquire the socket lock, but udp{v6}_destroy_sock()\\nrelease it before performing destructive actions.\\n\\nWe can\u0027t easily extend the socket lock scope to avoid the race,\\ninstead use the SOCK_DEAD flag to prevent udp_abort from doing\\nany action when the critical race happens.\\n\\nDiagnosed-and-tested-by: Kaustubh Pandey \u003ckapandey@codeaurora.org\u003e\"},{\"lang\":\"es\",\"value\":\" En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: udp: corrige la ejecuci\u00f3n entre close() y udp_abort(). Kaustubh inform\u00f3 y diagnostic\u00f3 un p\u00e1nico en udp_lib_lookup(). La causa principal es que udp_abort() compite con close(). Ambas funciones de ejecuci\u00f3n adquieren el bloqueo del socket, pero udp{v6}_destroy_sock() lo libera antes de realizar acciones destructivas. No podemos extender f\u00e1cilmente el alcance del bloqueo del socket para evitar la ejecuci\u00f3n; en su lugar, usamos el indicador SOCK_DEAD para evitar que udp_abort realice alguna acci\u00f3n cuando ocurre la ejecuci\u00f3n cr\u00edtica. Diagnosticado y probado por: Kaustubh Pandey \"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":4.7,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-362\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.9\",\"versionEndExcluding\":\"4.9.274\",\"matchCriteriaId\":\"6B5A1555-2CC4-4652-AD96-3529D26B3447\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.14.238\",\"matchCriteriaId\":\"C3C0DBBF-0923-4D2A-9178-134691F9933F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.196\",\"matchCriteriaId\":\"F3CAB837-7D38-4934-AD4F-195CEFD754E6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.128\",\"matchCriteriaId\":\"6267BD4E-BE25-48B5-B850-4B493440DAFA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.46\",\"matchCriteriaId\":\"59455D13-A902-42E1-97F7-5ED579777193\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.12.13\",\"matchCriteriaId\":\"7806E7E5-6D4F-4E18-81C1-79B3C60EE855\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"0CBAD0FC-C281-4666-AB2F-F8E6E1165DF7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"96AC23B2-D46A-49D9-8203-8E1BEDCA8532\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"DA610E30-717C-4700-9F77-A3C9244F3BFD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"1ECD33F5-85BE-430B-8F86-8D7BD560311D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"CF351855-2437-4CF5-AD7C-BDFA51F27683\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"25A855BA-2118-44F2-90EF-EBBB12AF51EF\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2f73448041bd0682d4b552cfd314ace66107f1ad\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5a88477c1c85e4baa51e91f2d40f2166235daa56\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/65310b0aff86980a011c7c7bfa487a333d4ca241\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8729ec8a2238152a4afc212a331a6cd2c61aeeac\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a0882f68f54f7a8b6308261acee9bd4faab5a69e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a8b897c7bcd47f4147d066e22cc01d1026d7640e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e3c36c773aed0fef8b1d3d555b43393ec564400f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/2f73448041bd0682d4b552cfd314ace66107f1ad\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5a88477c1c85e4baa51e91f2d40f2166235daa56\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/65310b0aff86980a011c7c7bfa487a333d4ca241\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8729ec8a2238152a4afc212a331a6cd2c61aeeac\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a0882f68f54f7a8b6308261acee9bd4faab5a69e\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a8b897c7bcd47f4147d066e22cc01d1026d7640e\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e3c36c773aed0fef8b1d3d555b43393ec564400f\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/e3c36c773aed0fef8b1d3d555b43393ec564400f\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/a0882f68f54f7a8b6308261acee9bd4faab5a69e\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/2f73448041bd0682d4b552cfd314ace66107f1ad\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/5a88477c1c85e4baa51e91f2d40f2166235daa56\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/8729ec8a2238152a4afc212a331a6cd2c61aeeac\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/65310b0aff86980a011c7c7bfa487a333d4ca241\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/a8b897c7bcd47f4147d066e22cc01d1026d7640e\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:32:07.937Z\"}}, {\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47248\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-05-23T18:04:43.420239Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-23T18:04:47.404Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"title\": \"udp: fix race between close() and udp_abort()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5d77dca82839\", \"lessThan\": \"e3c36c773aed\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5d77dca82839\", \"lessThan\": \"a0882f68f54f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5d77dca82839\", \"lessThan\": \"2f73448041bd\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5d77dca82839\", \"lessThan\": \"5a88477c1c85\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5d77dca82839\", \"lessThan\": \"8729ec8a2238\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5d77dca82839\", \"lessThan\": \"65310b0aff86\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5d77dca82839\", \"lessThan\": \"a8b897c7bcd4\", \"versionType\": \"git\"}], \"programFiles\": [\"net/ipv4/udp.c\", \"net/ipv6/udp.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.9\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.9\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.9.274\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.238\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.196\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.128\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.46\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.12.13\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.12.*\"}, {\"status\": \"unaffected\", \"version\": \"5.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/ipv4/udp.c\", \"net/ipv6/udp.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/e3c36c773aed0fef8b1d3d555b43393ec564400f\"}, {\"url\": \"https://git.kernel.org/stable/c/a0882f68f54f7a8b6308261acee9bd4faab5a69e\"}, {\"url\": \"https://git.kernel.org/stable/c/2f73448041bd0682d4b552cfd314ace66107f1ad\"}, {\"url\": \"https://git.kernel.org/stable/c/5a88477c1c85e4baa51e91f2d40f2166235daa56\"}, {\"url\": \"https://git.kernel.org/stable/c/8729ec8a2238152a4afc212a331a6cd2c61aeeac\"}, {\"url\": \"https://git.kernel.org/stable/c/65310b0aff86980a011c7c7bfa487a333d4ca241\"}, {\"url\": \"https://git.kernel.org/stable/c/a8b897c7bcd47f4147d066e22cc01d1026d7640e\"}], \"x_generator\": {\"engine\": \"bippy-9e1c9544281a\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nudp: fix race between close() and udp_abort()\\n\\nKaustubh reported and diagnosed a panic in udp_lib_lookup().\\nThe root cause is udp_abort() racing with close(). Both\\nracing functions acquire the socket lock, but udp{v6}_destroy_sock()\\nrelease it before performing destructive actions.\\n\\nWe can\u0027t easily extend the socket lock scope to avoid the race,\\ninstead use the SOCK_DEAD flag to prevent udp_abort from doing\\nany action when the critical race happens.\\n\\nDiagnosed-and-tested-by: Kaustubh Pandey \u003ckapandey@codeaurora.org\u003e\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-04T12:02:15.957Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47248\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-04T12:02:15.957Z\", \"dateReserved\": \"2024-04-10T18:59:19.536Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-21T14:19:45.588Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.