github - ghsa-w4w8-43xj-r4wr

GHSA-W4W8-43XJ-R4WR

Vulnerability from github – Published: 2022-05-24 17:00 – Updated: 2024-04-04 02:37

Details

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 ?

7.5 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2019-6470"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-11-01T23:15:00Z",
    "severity": "HIGH"
  },
  "details": "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.",
  "id": "GHSA-w4w8-43xj-r4wr",
  "modified": "2024-04-04T02:37:52Z",
  "published": "2022-05-24T17:00:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-6470"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2060"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:3525"
    },
    {
      "type": "WEB",
      "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=896122"
    },
    {
      "type": "WEB",
      "url": "https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00048.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00049.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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

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

Summary

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

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

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

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JSON

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          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "dhcpd",
          "vendor": "Multiple, non-ISC",
          "versions": [
            {
              "status": "affected",
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      "title": "dhcpd: use-after-free error leads crash in IPv6 mode when using mismatched BIND libraries",
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        },
        "affects": {
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                      "version": {
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}

Sightings

Author	Source	Type	Date

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.

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GHSA-W4W8-43XJ-R4WR

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

Tags

Sightings

Nomenclature