Vulnerability-Lookup

CNVD-2019-16412

Vulnerability from cnvd - Published: 2019-06-04

Title

Ubuntu拒绝服务漏洞

Description

Ubuntu是英国科能（Canonical）公司和Ubuntu公司的一套以桌面应用为主的GNU/Linux操作系统。 Ubuntu 18.10版本和18.04 LTS版本中存在安全漏洞。远程攻击者可利用该漏洞造成DHCP崩溃，导致拒绝服务。

Severity

中

Patch Name

Ubuntu拒绝服务漏洞的补丁

Patch Description

Ubuntu是英国科能（Canonical）公司和Ubuntu公司的一套以桌面应用为主的GNU/Linux操作系统。 Ubuntu 18.10版本和18.04 LTS版本中存在安全漏洞。远程攻击者可利用该漏洞造成DHCP崩溃，导致拒绝服务。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://gitlab.isc.org/wpk/bind9/commit/65a483106e45704e19781bfe4f4634db4f77562e

Reference

https://gitlab.isc.org/wpk/bind9/commit/65a483106e45704e19781bfe4f4634db4f77562e

Impacted products

Name
['Canonical Ltd. Ubuntu 18.10', 'Canonical Ltd. Ubuntu 18.04 LTS']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-6470"
    }
  },
  "description": "Ubuntu\u662f\u82f1\u56fd\u79d1\u80fd\uff08Canonical\uff09\u516c\u53f8\u548cUbuntu\u516c\u53f8\u7684\u4e00\u5957\u4ee5\u684c\u9762\u5e94\u7528\u4e3a\u4e3b\u7684GNU/Linux\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nUbuntu 18.10\u7248\u672c\u548c18.04 LTS\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210DHCP\u5d29\u6e83\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "unknwon",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://gitlab.isc.org/wpk/bind9/commit/65a483106e45704e19781bfe4f4634db4f77562e",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-16412",
  "openTime": "2019-06-04",
  "patchDescription": "Ubuntu\u662f\u82f1\u56fd\u79d1\u80fd\uff08Canonical\uff09\u516c\u53f8\u548cUbuntu\u516c\u53f8\u7684\u4e00\u5957\u4ee5\u684c\u9762\u5e94\u7528\u4e3a\u4e3b\u7684GNU/Linux\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nUbuntu 18.10\u7248\u672c\u548c18.04 LTS\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210DHCP\u5d29\u6e83\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Ubuntu\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Canonical Ltd. Ubuntu 18.10",
      "Canonical Ltd. Ubuntu 18.04 LTS"
    ]
  },
  "referenceLink": "https://gitlab.isc.org/wpk/bind9/commit/65a483106e45704e19781bfe4f4634db4f77562e",
  "serverity": "\u4e2d",
  "submitTime": "2019-05-14",
  "title": "Ubuntu\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2019-6470 (GCVE-0-2019-6470)

Vulnerability from cvelistv5 – Published: 2019-11-01 22:15 – Updated: 2024-09-17 01:25

Title

dhcpd: use-after-free error leads crash in IPv6 mode when using mismatched BIND libraries

Summary

There had existed in one of the ISC BIND libraries a bug in a function that was used by dhcpd when operating in DHCPv6 mode. There was also a bug in dhcpd relating to the use of this function per its documentation, but the bug in the library function prevented this from causing any harm. All releases of dhcpd from ISC contain copies of this, and other, BIND libraries in combinations that have been tested prior to release and are known to not present issues like this. Some third-party packagers of ISC software have modified the dhcpd source, BIND source, or version matchup in ways that create the crash potential. Based on reports available to ISC, the crash probability is large and no analysis has been done on how, or even if, the probability can be manipulated by an attacker. Affects: Builds of dhcpd versions prior to version 4.4.1 when using BIND versions 9.11.2 or later, or BIND versions with specific bug fixes backported to them. ISC does not have access to comprehensive version lists for all repackagings of dhcpd that are vulnerable. In particular, builds from other vendors may also be affected. Operators are advised to consult their vendor documentation.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

A use-after-free error in DHCPv6 processing when interfacing with newer BIND libraries leads to frequent crashes

Assigner

isc mitre root

References

5 references

URL	Tags
https://access.redhat.com/errata/RHSA-2019:2060	x_refsource_CONFIRM
https://lists.opensuse.org/opensuse-security-anno…	x_refsource_CONFIRM
https://lists.opensuse.org/opensuse-security-anno…	x_refsource_CONFIRM
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug…	x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2019:3525	vendor-advisoryx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
Multiple, non-ISC	dhcpd	Affected: builds not wholly from ISC source < 4.4.1

Date Public

2019-05-11 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T20:23:21.296Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:2060"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00049.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00048.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=896122"
          },
          {
            "name": "RHSA-2019:3525",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:3525"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "dhcpd",
          "vendor": "Multiple, non-ISC",
          "versions": [
            {
              "status": "affected",
              "version": "builds not wholly from ISC source \u003c 4.4.1"
            }
          ]
        }
      ],
      "datePublic": "2019-05-11T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "There had existed in one of the ISC BIND libraries a bug in a function that was used by dhcpd when operating in DHCPv6 mode. There was also a bug in dhcpd relating to the use of this function per its documentation, but the bug in the library function prevented this from causing any harm. All releases of dhcpd from ISC contain copies of this, and other, BIND libraries in combinations that have been tested prior to release and are known to not present issues like this. Some third-party packagers of ISC software have modified the dhcpd source, BIND source, or version matchup in ways that create the crash potential. Based on reports available to ISC, the crash probability is large and no analysis has been done on how, or even if, the probability can be manipulated by an attacker. Affects: Builds of dhcpd versions prior to version 4.4.1 when using BIND versions 9.11.2 or later, or BIND versions with specific bug fixes backported to them. ISC does not have access to comprehensive version lists for all repackagings of dhcpd that are vulnerable. In particular, builds from other vendors may also be affected. Operators are advised to consult their vendor documentation."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "A use-after-free error in DHCPv6 processing when interfacing with newer BIND libraries leads to frequent crashes",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-11-06T00:08:09.000Z",
        "orgId": "404fd4d2-a609-4245-b543-2c944a302a22",
        "shortName": "isc"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:2060"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00049.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00048.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=896122"
        },
        {
          "name": "RHSA-2019:3525",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:3525"
        }
      ],
      "source": {
        "discovery": "USER"
      },
      "title": "dhcpd: use-after-free error leads crash in IPv6 mode when using mismatched BIND libraries",
      "x_generator": {
        "engine": "Vulnogram 0.0.8"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-officer@isc.org",
          "DATE_PUBLIC": "2019-05-11T12:00:00.000Z",
          "ID": "CVE-2019-6470",
          "STATE": "PUBLIC",
          "TITLE": "dhcpd: use-after-free error leads crash in IPv6 mode when using mismatched BIND libraries"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "dhcpd",
                      "version": {
                        "version_data": [
                          {
                            "version_name": "builds not wholly from ISC source",
                            "version_value": "\u003c 4.4.1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Multiple, non-ISC"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "There had existed in one of the ISC BIND libraries a bug in a function that was used by dhcpd when operating in DHCPv6 mode. There was also a bug in dhcpd relating to the use of this function per its documentation, but the bug in the library function prevented this from causing any harm. All releases of dhcpd from ISC contain copies of this, and other, BIND libraries in combinations that have been tested prior to release and are known to not present issues like this. Some third-party packagers of ISC software have modified the dhcpd source, BIND source, or version matchup in ways that create the crash potential. Based on reports available to ISC, the crash probability is large and no analysis has been done on how, or even if, the probability can be manipulated by an attacker. Affects: Builds of dhcpd versions prior to version 4.4.1 when using BIND versions 9.11.2 or later, or BIND versions with specific bug fixes backported to them. ISC does not have access to comprehensive version lists for all repackagings of dhcpd that are vulnerable. In particular, builds from other vendors may also be affected. Operators are advised to consult their vendor documentation."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.8"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "A use-after-free error in DHCPv6 processing when interfacing with newer BIND libraries leads to frequent crashes"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://access.redhat.com/errata/RHSA-2019:2060",
              "refsource": "CONFIRM",
              "url": "https://access.redhat.com/errata/RHSA-2019:2060"
            },
            {
              "name": "https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00049.html",
              "refsource": "CONFIRM",
              "url": "https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00049.html"
            },
            {
              "name": "https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00048.html",
              "refsource": "CONFIRM",
              "url": "https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00048.html"
            },
            {
              "name": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=896122",
              "refsource": "CONFIRM",
              "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=896122"
            },
            {
              "name": "RHSA-2019:3525",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:3525"
            }
          ]
        },
        "source": {
          "discovery": "USER"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
    "assignerShortName": "isc",
    "cveId": "CVE-2019-6470",
    "datePublished": "2019-11-01T22:15:33.599Z",
    "dateReserved": "2019-01-16T00:00:00.000Z",
    "dateUpdated": "2024-09-17T01:25:37.218Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CNVD-2019-16412

CVE-2019-6470 (GCVE-0-2019-6470)

Tags

Sightings

Nomenclature

Related by attack behaviour