cve-2024-26828
Vulnerability from cvelistv5
Published
2024-04-17 09:43
Modified
2024-12-19 08:48
Summary
In the Linux kernel, the following vulnerability has been resolved: cifs: fix underflow in parse_server_interfaces() In this loop, we step through the buffer and after each item we check if the size_left is greater than the minimum size we need. However, the problem is that "bytes_left" is type ssize_t while sizeof() is type size_t. That means that because of type promotion, the comparison is done as an unsigned and if we have negative bytes left the loop continues instead of ending.
Impacted products
Vendor Product Version
Linux Linux Version: 4.18
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "ADJACENT_NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 6.7,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-26828",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-12T17:36:16.490979Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "description": "CWE-noinfo Not enough information",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-04T18:28:47.130Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:14:13.603Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/7190353835b4a219abb70f90b06cdcae97f11512"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/f7ff1c89fb6e9610d2b01c1821727729e6609308"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/df2af9fdbc4ddde18a3371c4ca1a86596e8be301"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/cffe487026be13eaf37ea28b783d9638ab147204"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/smb2ops.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7190353835b4a219abb70f90b06cdcae97f11512",
              "status": "affected",
              "version": "fe856be475f7cf5ffcde57341d175ce9fd09434b",
              "versionType": "git"
            },
            {
              "lessThan": "f7ff1c89fb6e9610d2b01c1821727729e6609308",
              "status": "affected",
              "version": "fe856be475f7cf5ffcde57341d175ce9fd09434b",
              "versionType": "git"
            },
            {
              "lessThan": "df2af9fdbc4ddde18a3371c4ca1a86596e8be301",
              "status": "affected",
              "version": "fe856be475f7cf5ffcde57341d175ce9fd09434b",
              "versionType": "git"
            },
            {
              "lessThan": "cffe487026be13eaf37ea28b783d9638ab147204",
              "status": "affected",
              "version": "fe856be475f7cf5ffcde57341d175ce9fd09434b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/smb2ops.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.18"
            },
            {
              "lessThan": "4.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.79",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.18",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: fix underflow in parse_server_interfaces()\n\nIn this loop, we step through the buffer and after each item we check\nif the size_left is greater than the minimum size we need.  However,\nthe problem is that \"bytes_left\" is type ssize_t while sizeof() is type\nsize_t.  That means that because of type promotion, the comparison is\ndone as an unsigned and if we have negative bytes left the loop\ncontinues instead of ending."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T08:48:13.331Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7190353835b4a219abb70f90b06cdcae97f11512"
        },
        {
          "url": "https://git.kernel.org/stable/c/f7ff1c89fb6e9610d2b01c1821727729e6609308"
        },
        {
          "url": "https://git.kernel.org/stable/c/df2af9fdbc4ddde18a3371c4ca1a86596e8be301"
        },
        {
          "url": "https://git.kernel.org/stable/c/cffe487026be13eaf37ea28b783d9638ab147204"
        }
      ],
      "title": "cifs: fix underflow in parse_server_interfaces()",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26828",
    "datePublished": "2024-04-17T09:43:52.995Z",
    "dateReserved": "2024-02-19T14:20:24.181Z",
    "dateUpdated": "2024-12-19T08:48:13.331Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26828\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-17T10:15:09.300\",\"lastModified\":\"2024-11-21T09:03:09.600\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncifs: fix underflow in parse_server_interfaces()\\n\\nIn this loop, we step through the buffer and after each item we check\\nif the size_left is greater than the minimum size we need.  However,\\nthe problem is that \\\"bytes_left\\\" is type ssize_t while sizeof() is type\\nsize_t.  That means that because of type promotion, the comparison is\\ndone as an unsigned and if we have negative bytes left the loop\\ncontinues instead of ending.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: cifs: corrige el desbordamiento insuficiente en parse_server_interfaces() En este bucle, recorremos el b\u00fafer y despu\u00e9s de cada elemento comprobamos si size_left es mayor que el tama\u00f1o m\u00ednimo que necesitamos. Sin embargo, el problema es que \\\"bytes_left\\\" es del tipo ssize_t mientras que sizeof() es del tipo size_t. Eso significa que debido a la promoci\u00f3n de tipo, la comparaci\u00f3n se realiza sin firmar y si nos quedan bytes negativos, el ciclo contin\u00faa en lugar de finalizar.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H\",\"baseScore\":6.7,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.5,\"impactScore\":5.2}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/7190353835b4a219abb70f90b06cdcae97f11512\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cffe487026be13eaf37ea28b783d9638ab147204\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/df2af9fdbc4ddde18a3371c4ca1a86596e8be301\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f7ff1c89fb6e9610d2b01c1821727729e6609308\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7190353835b4a219abb70f90b06cdcae97f11512\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/cffe487026be13eaf37ea28b783d9638ab147204\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/df2af9fdbc4ddde18a3371c4ca1a86596e8be301\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/f7ff1c89fb6e9610d2b01c1821727729e6609308\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.