cve-2023-3439
Vulnerability from cvelistv5
Published
2023-06-28 00:00
Modified
2024-08-02 06:55
Severity ?
Summary
A flaw was found in the MCTP protocol in the Linux kernel. The function mctp_unregister() reclaims the device's relevant resource when a netcard detaches. However, a running routine may be unaware of this and cause the use-after-free of the mdev->addrs object, potentially leading to a denial of service.
References
patrick@puiterwijk.orghttp://www.openwall.com/lists/oss-security/2023/07/02/1Mailing List, Patch, Third Party Advisory
patrick@puiterwijk.orghttps://bugzilla.redhat.com/show_bug.cgi?id=2217915Issue Tracking, Patch, Third Party Advisory
patrick@puiterwijk.orghttps://github.com/torvalds/linux/commit/b561275d633bcd8e0e8055ab86f1a13df75a0269Patch
Impacted products
n/aLinux Kernel (mctp)
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T06:55:03.477Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2217915"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/torvalds/linux/commit/b561275d633bcd8e0e8055ab86f1a13df75a0269"
          },
          {
            "name": "[oss-security] 20230702 CVE-2023-3439: Linux MCTP use-after-free in mctp_sendmsg",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2023/07/02/1"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Linux Kernel (mctp)",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Fixed in kernel 5.18-rc5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in the MCTP protocol in the Linux kernel. The function mctp_unregister() reclaims the device\u0027s relevant resource when a netcard detaches. However, a running routine may be unaware of this and cause the use-after-free of the mdev-\u003eaddrs object, potentially leading to a denial of service."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-07-02T00:00:00",
        "orgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
        "shortName": "fedora"
      },
      "references": [
        {
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2217915"
        },
        {
          "url": "https://github.com/torvalds/linux/commit/b561275d633bcd8e0e8055ab86f1a13df75a0269"
        },
        {
          "name": "[oss-security] 20230702 CVE-2023-3439: Linux MCTP use-after-free in mctp_sendmsg",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2023/07/02/1"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
    "assignerShortName": "fedora",
    "cveId": "CVE-2023-3439",
    "datePublished": "2023-06-28T00:00:00",
    "dateReserved": "2023-06-28T00:00:00",
    "dateUpdated": "2024-08-02T06:55:03.477Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-3439\",\"sourceIdentifier\":\"patrick@puiterwijk.org\",\"published\":\"2023-06-28T21:15:10.517\",\"lastModified\":\"2023-07-06T21:39:33.310\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"A flaw was found in the MCTP protocol in the Linux kernel. The function mctp_unregister() reclaims the device\u0027s relevant resource when a netcard detaches. However, a running routine may be unaware of this and cause the use-after-free of the mdev-\u003eaddrs object, potentially leading to a denial of service.\"}],\"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\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":4.7,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.0,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]},{\"source\":\"patrick@puiterwijk.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"5.18\",\"matchCriteriaId\":\"FE93544F-B946-47CF-9697-FBF3484FCB92\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"6AD94161-84BB-42E6-9882-4FC0C42E9FC1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"7AB06DDF-3C2B-416D-B448-E990D8FF67A9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.18:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"EAE6C6C5-4D21-4C04-897C-70CBBB3D7B91\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.18:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"DA5F085D-52F3-4EE2-8353-455D1A6FE073\"}]}]}],\"references\":[{\"url\":\"http://www.openwall.com/lists/oss-security/2023/07/02/1\",\"source\":\"patrick@puiterwijk.org\",\"tags\":[\"Mailing List\",\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=2217915\",\"source\":\"patrick@puiterwijk.org\",\"tags\":[\"Issue Tracking\",\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/torvalds/linux/commit/b561275d633bcd8e0e8055ab86f1a13df75a0269\",\"source\":\"patrick@puiterwijk.org\",\"tags\":[\"Patch\"]}]}}"
  }
}


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.