github - ghsa-vfmv-3fmr-wr8p

ghsa-vfmv-3fmr-wr8p

Vulnerability from github

Published

2024-04-10 21:30

Modified

2024-07-08 15:31

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

In the Linux kernel, the following vulnerability has been resolved:

tipc: check for null after calling kmemdup

kmemdup can return a null pointer so need to check for it, otherwise the null key will be dereferenced later in tipc_crypto_key_xmit as can be seen in the trace [1].

[1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47186"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-690"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-10T19:15:47Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: check for null after calling kmemdup\n\nkmemdup can return a null pointer so need to check for it, otherwise\nthe null key will be dereferenced later in tipc_crypto_key_xmit as\ncan be seen in the trace [1].\n\n\n[1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58",
  "id": "GHSA-vfmv-3fmr-wr8p",
  "modified": "2024-07-08T15:31:54Z",
  "published": "2024-04-10T21:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47186"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3e6db079751afd527bf3db32314ae938dc571916"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9404c4145542c23019a80ab1bb2ecf73cd057b10"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a7d91625863d4ffed63b993b5e6dc1298b6430c9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2021-47186

Vulnerability from cvelistv5

Published

2024-04-10 18:56

Modified

2024-11-04 12:01

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

tipc: check for null after calling kmemdup

References

▼	URL	Tags
	https://git.kernel.org/stable/c/a7d91625863d4ffed63b993b5e6dc1298b6430c9
	https://git.kernel.org/stable/c/9404c4145542c23019a80ab1bb2ecf73cd057b10
	https://git.kernel.org/stable/c/3e6db079751afd527bf3db32314ae938dc571916

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

JSON

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{
  "containers": {
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      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "linux_kernel",
            "vendor": "linux",
            "versions": [
              {
                "lessThan": "a7d91625863d",
                "status": "affected",
                "version": "1da177e4c3f4",
                "versionType": "custom"
              },
              {
                "lessThan": "9404c4145542",
                "status": "affected",
                "version": "1da177e4c3f4",
                "versionType": "custom"
              },
              {
                "lessThan": "3e6db079751a",
                "status": "affected",
                "version": "1da177e4c3f4",
                "versionType": "custom"
              },
              {
                "lessThanOrEqual": "5.11",
                "status": "unaffected",
                "version": "5.10.82",
                "versionType": "custom"
              },
              {
                "lessThanOrEqual": "5.16",
                "status": "unaffected",
                "version": "5.15.5",
                "versionType": "custom"
              },
              {
                "status": "unaffected",
                "version": "5.16"
              }
            ]
          }
        ],
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2021-47186",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-04-15T14:53:12.521984Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-690",
                "description": "CWE-690 Unchecked Return Value to NULL Pointer Dereference",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-07-03T17:58:00.124Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:32:07.381Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/a7d91625863d4ffed63b993b5e6dc1298b6430c9"
          },
          {
            "tags": [
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            "url": "https://git.kernel.org/stable/c/9404c4145542c23019a80ab1bb2ecf73cd057b10"
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          {
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              "x_transferred"
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            "url": "https://git.kernel.org/stable/c/3e6db079751afd527bf3db32314ae938dc571916"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/tipc/crypto.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "0",
              "versionType": "semver"
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              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.82",
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            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.16",
              "versionType": "original_commit_for_fix"
            }
          ]
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: check for null after calling kmemdup\n\nkmemdup can return a null pointer so need to check for it, otherwise\nthe null key will be dereferenced later in tipc_crypto_key_xmit as\ncan be seen in the trace [1].\n\n\n[1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-04T12:01:07.703Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/3e6db079751afd527bf3db32314ae938dc571916"
        }
      ],
      "title": "tipc: check for null after calling kmemdup",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47186",
    "datePublished": "2024-04-10T18:56:26.297Z",
    "dateReserved": "2024-03-25T09:12:14.113Z",
    "dateUpdated": "2024-11-04T12:01:07.703Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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