CVE-2023-2236 (GCVE-0-2023-2236)
Vulnerability from cvelistv5
Published
2023-05-01 12:50
Modified
2025-03-05 19:03
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Summary
A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Both io_install_fixed_file and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability. We recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.
References
Impacted products
Vendor Product Version
Linux Linux Kernel Version: 5.19   < 6.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T06:19:13.600Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "patch",
              "x_transferred"
            ],
            "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d94c04c0db024922e886c9fd429659f22f48ea4"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://kernel.dance/9d94c04c0db024922e886c9fd429659f22f48ea4"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20230601-0010/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-2236",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-05T18:42:16.178951Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-03-05T19:03:34.822Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "kernel",
          "product": "Linux Kernel",
          "repo": "https://git.kernel.org",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6.1",
              "status": "affected",
              "version": "5.19",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2022-11-25T13:54:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eA use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.\u003c/p\u003e\u003cp\u003eBoth\u0026nbsp;\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eio_install_fixed_file\u003c/span\u003e\u0026nbsp;and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability.\u003c/p\u003e\u003cp\u003eWe recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.\u003c/p\u003e"
            }
          ],
          "value": "A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.\n\nBoth\u00a0io_install_fixed_file\u00a0and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability.\n\nWe recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-233",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-233 Privilege Escalation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416 Use After Free",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-06-01T13:06:28.210Z",
        "orgId": "14ed7db2-1595-443d-9d34-6215bf890778",
        "shortName": "Google"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d94c04c0db024922e886c9fd429659f22f48ea4"
        },
        {
          "url": "https://kernel.dance/9d94c04c0db024922e886c9fd429659f22f48ea4"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20230601-0010/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Use-after-free in Linux kernel\u0027s Performance Events subsystem",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778",
    "assignerShortName": "Google",
    "cveId": "CVE-2023-2236",
    "datePublished": "2023-05-01T12:50:47.742Z",
    "dateReserved": "2023-04-21T17:43:28.315Z",
    "dateUpdated": "2025-03-05T19:03:34.822Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-2236\",\"sourceIdentifier\":\"cve-coordination@google.com\",\"published\":\"2023-05-01T13:15:44.850\",\"lastModified\":\"2025-02-13T17:16:20.363\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.\\n\\nBoth\u00a0io_install_fixed_file\u00a0and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability.\\n\\nWe recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cve-coordination@google.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"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:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"cve-coordination@google.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.19\",\"versionEndExcluding\":\"6.0.11\",\"matchCriteriaId\":\"96F47CB7-A27F-4316-BBC3-15AE6B5A0734\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:hci_baseboard_management_controller:h300s:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"27227B35-932A-4035-B39F-6A455753C0D6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:hci_baseboard_management_controller:h410c:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"489D20B9-166F-423D-8C48-A23D3026E33B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:hci_baseboard_management_controller:h410s:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A4AD592C-222D-4C6F-B176-8145A1A5AFEC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:hci_baseboard_management_controller:h500s:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8603654B-A8A9-4DEB-B0DD-C82E1C885749\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:hci_baseboard_management_controller:h700s:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C855C933-F271-45E6-8E85-8D7CF2EF1BE6\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d94c04c0db024922e886c9fd429659f22f48ea4\",\"source\":\"cve-coordination@google.com\",\"tags\":[\"Exploit\",\"Mailing List\",\"Patch\"]},{\"url\":\"https://kernel.dance/9d94c04c0db024922e886c9fd429659f22f48ea4\",\"source\":\"cve-coordination@google.com\",\"tags\":[\"Exploit\",\"Patch\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20230601-0010/\",\"source\":\"cve-coordination@google.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d94c04c0db024922e886c9fd429659f22f48ea4\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Mailing List\",\"Patch\"]},{\"url\":\"https://kernel.dance/9d94c04c0db024922e886c9fd429659f22f48ea4\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Patch\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20230601-0010/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"cna\": {\"affected\": [{\"defaultStatus\": \"unaffected\", \"packageName\": \"kernel\", \"product\": \"Linux Kernel\", \"repo\": \"https://git.kernel.org\", \"vendor\": \"Linux\", \"versions\": [{\"lessThan\": \"6.1\", \"status\": \"affected\", \"version\": \"5.19\", \"versionType\": \"custom\"}]}], \"datePublic\": \"2022-11-25T13:54:00.000Z\", \"descriptions\": [{\"lang\": \"en\", \"supportingMedia\": [{\"base64\": false, \"type\": \"text/html\", \"value\": \"\u003cp\u003eA use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.\u003c/p\u003e\u003cp\u003eBoth\u0026nbsp;\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003eio_install_fixed_file\u003c/span\u003e\u0026nbsp;and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability.\u003c/p\u003e\u003cp\u003eWe recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.\u003c/p\u003e\"}], \"value\": \"A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.\\n\\nBoth\\u00a0io_install_fixed_file\\u00a0and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability.\\n\\nWe recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.\"}], \"impacts\": [{\"capecId\": \"CAPEC-233\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-233 Privilege Escalation\"}]}], \"metrics\": [{\"cvssV3_1\": {\"attackComplexity\": \"LOW\", \"attackVector\": \"LOCAL\", \"availabilityImpact\": \"HIGH\", \"baseScore\": 7.8, \"baseSeverity\": \"HIGH\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"scope\": \"UNCHANGED\", \"userInteraction\": \"NONE\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"version\": \"3.1\"}, \"format\": \"CVSS\", \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\", \"lang\": \"en\", \"type\": \"CWE\"}]}], \"providerMetadata\": {\"orgId\": \"14ed7db2-1595-443d-9d34-6215bf890778\", \"shortName\": \"Google\", \"dateUpdated\": \"2023-06-01T13:06:28.210Z\"}, \"references\": [{\"tags\": [\"patch\"], \"url\": \"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d94c04c0db024922e886c9fd429659f22f48ea4\"}, {\"url\": \"https://kernel.dance/9d94c04c0db024922e886c9fd429659f22f48ea4\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20230601-0010/\"}], \"source\": {\"discovery\": \"EXTERNAL\"}, \"title\": \"Use-after-free in Linux kernel\u0027s Performance Events subsystem\", \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}}, \"adp\": [{\"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T06:19:13.600Z\"}, \"title\": \"CVE Program Container\", \"references\": [{\"tags\": [\"patch\", \"x_transferred\"], \"url\": \"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d94c04c0db024922e886c9fd429659f22f48ea4\"}, {\"url\": \"https://kernel.dance/9d94c04c0db024922e886c9fd429659f22f48ea4\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20230601-0010/\", \"tags\": [\"x_transferred\"]}]}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-2236\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-03-05T18:42:16.178951Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-03-05T18:42:17.937Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-2236\", \"assignerOrgId\": \"14ed7db2-1595-443d-9d34-6215bf890778\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"Google\", \"dateReserved\": \"2023-04-21T17:43:28.315Z\", \"datePublished\": \"2023-05-01T12:50:47.742Z\", \"dateUpdated\": \"2025-03-05T19:03:34.822Z\"}",
      "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.