gsd-2018-20856
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
An issue was discovered in the Linux kernel before 4.18.7. In block/blk-core.c, there is an __blk_drain_queue() use-after-free because a certain error case is mishandled.
Aliases
Aliases



{
  "GSD": {
    "alias": "CVE-2018-20856",
    "description": "An issue was discovered in the Linux kernel before 4.18.7. In block/blk-core.c, there is an __blk_drain_queue() use-after-free because a certain error case is mishandled.",
    "id": "GSD-2018-20856",
    "references": [
      "https://www.suse.com/security/cve/CVE-2018-20856.html",
      "https://www.debian.org/security/2019/dsa-4497",
      "https://access.redhat.com/errata/RHSA-2020:0698",
      "https://access.redhat.com/errata/RHSA-2020:0664",
      "https://access.redhat.com/errata/RHSA-2020:0543",
      "https://access.redhat.com/errata/RHSA-2020:0103",
      "https://access.redhat.com/errata/RHSA-2020:0100",
      "https://access.redhat.com/errata/RHSA-2019:3217",
      "https://access.redhat.com/errata/RHSA-2019:3089",
      "https://access.redhat.com/errata/RHSA-2019:3076",
      "https://access.redhat.com/errata/RHSA-2019:3055",
      "https://ubuntu.com/security/CVE-2018-20856",
      "https://alas.aws.amazon.com/cve/html/CVE-2018-20856.html",
      "https://linux.oracle.com/cve/CVE-2018-20856.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2018-20856"
      ],
      "details": "An issue was discovered in the Linux kernel before 4.18.7. In block/blk-core.c, there is an __blk_drain_queue() use-after-free because a certain error case is mishandled.",
      "id": "GSD-2018-20856",
      "modified": "2023-12-13T01:22:29.498394Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2018-20856",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "An issue was discovered in the Linux kernel before 4.18.7. In block/blk-core.c, there is an __blk_drain_queue() use-after-free because a certain error case is mishandled."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7",
            "refsource": "MISC",
            "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7"
          },
          {
            "name": "https://github.com/torvalds/linux/commit/54648cf1ec2d7f4b6a71767799c45676a138ca24",
            "refsource": "MISC",
            "url": "https://github.com/torvalds/linux/commit/54648cf1ec2d7f4b6a71767799c45676a138ca24"
          },
          {
            "name": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54648cf1ec2d7f4b6a71767799c45676a138ca24",
            "refsource": "MISC",
            "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54648cf1ec2d7f4b6a71767799c45676a138ca24"
          },
          {
            "name": "USN-4094-1",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4094-1/"
          },
          {
            "name": "20190813 [SECURITY] [DSA 4497-1] linux security update",
            "refsource": "BUGTRAQ",
            "url": "https://seclists.org/bugtraq/2019/Aug/18"
          },
          {
            "name": "DSA-4497",
            "refsource": "DEBIAN",
            "url": "https://www.debian.org/security/2019/dsa-4497"
          },
          {
            "name": "20190814 [slackware-security] Slackware 14.2 kernel (SSA:2019-226-01)",
            "refsource": "BUGTRAQ",
            "url": "https://seclists.org/bugtraq/2019/Aug/26"
          },
          {
            "name": "[debian-lts-announce] 20190814 [SECURITY] [DLA 1885-1] linux-4.9 security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html"
          },
          {
            "name": "http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html",
            "refsource": "MISC",
            "url": "http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html"
          },
          {
            "name": "USN-4116-1",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4116-1/"
          },
          {
            "name": "USN-4118-1",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4118-1/"
          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20190905-0002/",
            "refsource": "CONFIRM",
            "url": "https://security.netapp.com/advisory/ntap-20190905-0002/"
          },
          {
            "name": "http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html",
            "refsource": "MISC",
            "url": "http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html"
          },
          {
            "name": "https://support.f5.com/csp/article/K14673240?utm_source=f5support\u0026amp;utm_medium=RSS",
            "refsource": "CONFIRM",
            "url": "https://support.f5.com/csp/article/K14673240?utm_source=f5support\u0026amp;utm_medium=RSS"
          },
          {
            "name": "RHSA-2019:3076",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2019:3076"
          },
          {
            "name": "RHSA-2019:3055",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2019:3055"
          },
          {
            "name": "RHSA-2019:3089",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2019:3089"
          },
          {
            "name": "http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html",
            "refsource": "MISC",
            "url": "http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html"
          },
          {
            "name": "RHSA-2019:3217",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2019:3217"
          },
          {
            "name": "RHSA-2020:0100",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2020:0100"
          },
          {
            "name": "RHSA-2020:0103",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2020:0103"
          },
          {
            "name": "RHSA-2020:0543",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2020:0543"
          },
          {
            "name": "RHSA-2020:0664",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2020:0664"
          },
          {
            "name": "RHSA-2020:0698",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2020:0698"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "4.18.7",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-20856"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "An issue was discovered in the Linux kernel before 4.18.7. In block/blk-core.c, there is an __blk_drain_queue() use-after-free because a certain error case is mishandled."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-416"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/torvalds/linux/commit/54648cf1ec2d7f4b6a71767799c45676a138ca24",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/torvalds/linux/commit/54648cf1ec2d7f4b6a71767799c45676a138ca24"
            },
            {
              "name": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54648cf1ec2d7f4b6a71767799c45676a138ca24",
              "refsource": "MISC",
              "tags": [
                "Mailing List",
                "Patch",
                "Vendor Advisory"
              ],
              "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54648cf1ec2d7f4b6a71767799c45676a138ca24"
            },
            {
              "name": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7",
              "refsource": "MISC",
              "tags": [
                "Mailing List",
                "Release Notes",
                "Vendor Advisory"
              ],
              "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7"
            },
            {
              "name": "USN-4094-1",
              "refsource": "UBUNTU",
              "tags": [],
              "url": "https://usn.ubuntu.com/4094-1/"
            },
            {
              "name": "DSA-4497",
              "refsource": "DEBIAN",
              "tags": [],
              "url": "https://www.debian.org/security/2019/dsa-4497"
            },
            {
              "name": "20190813 [SECURITY] [DSA 4497-1] linux security update",
              "refsource": "BUGTRAQ",
              "tags": [],
              "url": "https://seclists.org/bugtraq/2019/Aug/18"
            },
            {
              "name": "20190814 [slackware-security] Slackware 14.2 kernel (SSA:2019-226-01)",
              "refsource": "BUGTRAQ",
              "tags": [],
              "url": "https://seclists.org/bugtraq/2019/Aug/26"
            },
            {
              "name": "[debian-lts-announce] 20190814 [SECURITY] [DLA 1885-1] linux-4.9 security update",
              "refsource": "MLIST",
              "tags": [],
              "url": "https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html"
            },
            {
              "name": "http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html",
              "refsource": "MISC",
              "tags": [],
              "url": "http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html"
            },
            {
              "name": "USN-4116-1",
              "refsource": "UBUNTU",
              "tags": [],
              "url": "https://usn.ubuntu.com/4116-1/"
            },
            {
              "name": "USN-4118-1",
              "refsource": "UBUNTU",
              "tags": [],
              "url": "https://usn.ubuntu.com/4118-1/"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20190905-0002/",
              "refsource": "CONFIRM",
              "tags": [],
              "url": "https://security.netapp.com/advisory/ntap-20190905-0002/"
            },
            {
              "name": "http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html",
              "refsource": "MISC",
              "tags": [],
              "url": "http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html"
            },
            {
              "name": "https://support.f5.com/csp/article/K14673240?utm_source=f5support\u0026amp;utm_medium=RSS",
              "refsource": "CONFIRM",
              "tags": [],
              "url": "https://support.f5.com/csp/article/K14673240?utm_source=f5support\u0026amp;utm_medium=RSS"
            },
            {
              "name": "RHSA-2019:3055",
              "refsource": "REDHAT",
              "tags": [],
              "url": "https://access.redhat.com/errata/RHSA-2019:3055"
            },
            {
              "name": "RHSA-2019:3076",
              "refsource": "REDHAT",
              "tags": [],
              "url": "https://access.redhat.com/errata/RHSA-2019:3076"
            },
            {
              "name": "RHSA-2019:3089",
              "refsource": "REDHAT",
              "tags": [],
              "url": "https://access.redhat.com/errata/RHSA-2019:3089"
            },
            {
              "name": "http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html",
              "refsource": "MISC",
              "tags": [],
              "url": "http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html"
            },
            {
              "name": "RHSA-2019:3217",
              "refsource": "REDHAT",
              "tags": [],
              "url": "https://access.redhat.com/errata/RHSA-2019:3217"
            },
            {
              "name": "RHSA-2020:0100",
              "refsource": "REDHAT",
              "tags": [],
              "url": "https://access.redhat.com/errata/RHSA-2020:0100"
            },
            {
              "name": "RHSA-2020:0103",
              "refsource": "REDHAT",
              "tags": [],
              "url": "https://access.redhat.com/errata/RHSA-2020:0103"
            },
            {
              "name": "RHSA-2020:0543",
              "refsource": "REDHAT",
              "tags": [],
              "url": "https://access.redhat.com/errata/RHSA-2020:0543"
            },
            {
              "name": "RHSA-2020:0664",
              "refsource": "REDHAT",
              "tags": [],
              "url": "https://access.redhat.com/errata/RHSA-2020:0664"
            },
            {
              "name": "RHSA-2020:0698",
              "refsource": "REDHAT",
              "tags": [],
              "url": "https://access.redhat.com/errata/RHSA-2020:0698"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.6,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2019-08-13T19:15Z",
      "publishedDate": "2019-07-26T05:15Z"
    }
  }
}


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.