github - ghsa-9xp3-mp9c-47rf

ghsa-9xp3-mp9c-47rf

Vulnerability from github

Published

2022-05-24 17:39

Modified

2022-05-24 17:39

Details

A flaw was found in dnsmasq before version 2.83. When receiving a query, dnsmasq does not check for an existing pending request for the same name and forwards a new request. By default, a maximum of 150 pending queries can be sent to upstream servers, so there can be at most 150 queries for the same name. This flaw allows an off-path attacker on the network to substantially reduce the number of attempts that it would have to perform to forge a reply and have it accepted by dnsmasq. This issue is mentioned in the "Birthday Attacks" section of RFC5452. If chained with CVE-2020-25684, the attack complexity of a successful attack is reduced. The highest threat from this vulnerability is to data integrity.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-25686"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-358"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-01-20T17:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A flaw was found in dnsmasq before version 2.83. When receiving a query, dnsmasq does not check for an existing pending request for the same name and forwards a new request. By default, a maximum of 150 pending queries can be sent to upstream servers, so there can be at most 150 queries for the same name. This flaw allows an off-path attacker on the network to substantially reduce the number of attempts that it would have to perform to forge a reply and have it accepted by dnsmasq. This issue is mentioned in the \"Birthday Attacks\" section of RFC5452. If chained with CVE-2020-25684, the attack complexity of a successful attack is reduced. The highest threat from this vulnerability is to data integrity.",
  "id": "GHSA-9xp3-mp9c-47rf",
  "modified": "2022-05-24T17:39:33Z",
  "published": "2022-05-24T17:39:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25686"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1890125"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202101-17"
    },
    {
      "type": "WEB",
      "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/12135-security-advisory-61"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-4844"
    },
    {
      "type": "WEB",
      "url": "https://www.jsof-tech.com/disclosures/dnspooq"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2020-25686

Vulnerability from cvelistv5

Published

2021-01-20 16:47

Modified

2024-08-04 15:40

Severity ?

Summary

References

▼	URL	Tags
	https://www.jsof-tech.com/disclosures/dnspooq/	x_refsource_MISC
	https://bugzilla.redhat.com/show_bug.cgi?id=1890125	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/	vendor-advisory, x_refsource_FEDORA
	https://security.gentoo.org/glsa/202101-17	vendor-advisory, x_refsource_GENTOO
	https://www.debian.org/security/2021/dsa-4844	vendor-advisory, x_refsource_DEBIAN
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/	vendor-advisory, x_refsource_FEDORA
	https://www.arista.com/en/support/advisories-notices/security-advisories/12135-security-advisory-61	x_refsource_MISC

Impacted products

▼	Vendor	Product
	n/a	dnsmasq

Show details on NVD website

JSON

To clipboard

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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.

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