cve-2018-1092
Vulnerability from cvelistv5
Published
2018-04-02 03:00
Modified
2024-08-05 03:51
Severity ?
Summary
The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image.
References
secalert@redhat.comhttp://openwall.com/lists/oss-security/2018/03/29/1Mailing List, Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2018:2948
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2018:3083
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2018:3096
secalert@redhat.comhttps://bugzilla.kernel.org/show_bug.cgi?id=199179Issue Tracking
secalert@redhat.comhttps://bugzilla.kernel.org/show_bug.cgi?id=199275Issue Tracking
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1560777Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=8e4b5eae5decd9dfe5a4ee369c22028f90ab4c44Patch
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
secalert@redhat.comhttps://usn.ubuntu.com/3676-1/
secalert@redhat.comhttps://usn.ubuntu.com/3676-2/
secalert@redhat.comhttps://usn.ubuntu.com/3677-1/
secalert@redhat.comhttps://usn.ubuntu.com/3677-2/
secalert@redhat.comhttps://usn.ubuntu.com/3678-1/
secalert@redhat.comhttps://usn.ubuntu.com/3678-2/
secalert@redhat.comhttps://usn.ubuntu.com/3678-3/
secalert@redhat.comhttps://usn.ubuntu.com/3678-4/
secalert@redhat.comhttps://usn.ubuntu.com/3754-1/
secalert@redhat.comhttps://www.debian.org/security/2018/dsa-4187
secalert@redhat.comhttps://www.debian.org/security/2018/dsa-4188
Impacted products
n/aLinux kernel through version 4.15
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T03:51:48.417Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "USN-3676-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3676-1/"
          },
          {
            "name": "USN-3678-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3678-2/"
          },
          {
            "name": "RHSA-2018:3083",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:3083"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://openwall.com/lists/oss-security/2018/03/29/1"
          },
          {
            "name": "DSA-4187",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2018/dsa-4187"
          },
          {
            "name": "USN-3678-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3678-1/"
          },
          {
            "name": "USN-3677-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3677-1/"
          },
          {
            "name": "DSA-4188",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2018/dsa-4188"
          },
          {
            "name": "USN-3754-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3754-1/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.kernel.org/show_bug.cgi?id=199179"
          },
          {
            "name": "RHSA-2018:2948",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:2948"
          },
          {
            "name": "USN-3678-3",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3678-3/"
          },
          {
            "name": "USN-3677-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3677-2/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1560777"
          },
          {
            "name": "USN-3676-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3676-2/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=8e4b5eae5decd9dfe5a4ee369c22028f90ab4c44"
          },
          {
            "name": "[debian-lts-announce] 20180502 [SECURITY] [DLA 1369-1] linux security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html"
          },
          {
            "name": "RHSA-2018:3096",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:3096"
          },
          {
            "name": "USN-3678-4",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3678-4/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.kernel.org/show_bug.cgi?id=199275"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Linux kernel through version 4.15",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Linux kernel through version 4.15"
            }
          ]
        }
      ],
      "datePublic": "2018-04-01T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "NULL pointer dereference",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-10-31T09:57:01",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "USN-3676-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3676-1/"
        },
        {
          "name": "USN-3678-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3678-2/"
        },
        {
          "name": "RHSA-2018:3083",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:3083"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://openwall.com/lists/oss-security/2018/03/29/1"
        },
        {
          "name": "DSA-4187",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2018/dsa-4187"
        },
        {
          "name": "USN-3678-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3678-1/"
        },
        {
          "name": "USN-3677-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3677-1/"
        },
        {
          "name": "DSA-4188",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2018/dsa-4188"
        },
        {
          "name": "USN-3754-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3754-1/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.kernel.org/show_bug.cgi?id=199179"
        },
        {
          "name": "RHSA-2018:2948",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:2948"
        },
        {
          "name": "USN-3678-3",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3678-3/"
        },
        {
          "name": "USN-3677-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3677-2/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1560777"
        },
        {
          "name": "USN-3676-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3676-2/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=8e4b5eae5decd9dfe5a4ee369c22028f90ab4c44"
        },
        {
          "name": "[debian-lts-announce] 20180502 [SECURITY] [DLA 1369-1] linux security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html"
        },
        {
          "name": "RHSA-2018:3096",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:3096"
        },
        {
          "name": "USN-3678-4",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3678-4/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.kernel.org/show_bug.cgi?id=199275"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2018-1092",
    "datePublished": "2018-04-02T03:00:00",
    "dateReserved": "2017-12-04T00:00:00",
    "dateUpdated": "2024-08-05T03:51:48.417Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2018-1092\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2018-04-02T03:29:00.230\",\"lastModified\":\"2023-02-12T23:32:36.947\",\"vulnStatus\":\"Modified\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image.\"},{\"lang\":\"es\",\"value\":\"La funci\u00f3n ext4_iget en fs/ext4/inode.c en el kernel de Linux hasta la versi\u00f3n 4.15.15 gestiona de manera incorrecta el caso de un directorio root con un i_lnks_count igual a cero, lo que permite que los atacantes provoquen una denegaci\u00f3n de servicio (desreferencia de puntero NULL en ext4_process_freed_data y OOPS) mediante una imagen ext4 manipulada.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:N/I:N/A:C\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"COMPLETE\",\"baseScore\":7.1},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":8.6,\"impactScore\":6.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":true}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"4.15.15\",\"matchCriteriaId\":\"EA4F2AD9-993F-4246-B6F9-7723FF82AF6C\"}]}]}],\"references\":[{\"url\":\"http://openwall.com/lists/oss-security/2018/03/29/1\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2018:2948\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2018:3083\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2018:3096\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://bugzilla.kernel.org/show_bug.cgi?id=199179\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Issue Tracking\"]},{\"url\":\"https://bugzilla.kernel.org/show_bug.cgi?id=199275\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Issue Tracking\"]},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=1560777\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=8e4b5eae5decd9dfe5a4ee369c22028f90ab4c44\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://usn.ubuntu.com/3676-1/\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://usn.ubuntu.com/3676-2/\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://usn.ubuntu.com/3677-1/\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://usn.ubuntu.com/3677-2/\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://usn.ubuntu.com/3678-1/\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://usn.ubuntu.com/3678-2/\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://usn.ubuntu.com/3678-3/\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://usn.ubuntu.com/3678-4/\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://usn.ubuntu.com/3754-1/\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://www.debian.org/security/2018/dsa-4187\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://www.debian.org/security/2018/dsa-4188\",\"source\":\"secalert@redhat.com\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




  • 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.