Vulnerability-Lookup

alsa-2025:21111

Vulnerability from osv_almalinux

Published

2025-11-12 00:00

Modified

2025-12-01 08:06

Summary

Important: bind9.18 security update

Details

BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly.

Security Fix(es):

bind: Cache poisoning attacks with unsolicited RRs (CVE-2025-40778)
bind: Cache poisoning due to weak PRNG (CVE-2025-40780)
bind: Resource exhaustion via malformed DNSKEY handling (CVE-2025-8677)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "bind9.18"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "32:9.18.29-5.el9_7.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "bind9.18-chroot"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "32:9.18.29-5.el9_7.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "bind9.18-devel"
      },
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        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "32:9.18.29-5.el9_7.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "bind9.18-dnssec-utils"
      },
      "ranges": [
        {
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            {
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            },
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "bind9.18-doc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "32:9.18.29-5.el9_7.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "bind9.18-libs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "32:9.18.29-5.el9_7.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
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      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "bind9.18-utils"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "32:9.18.29-5.el9_7.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly.  \n\nSecurity Fix(es):  \n\n  * bind: Cache poisoning attacks with unsolicited RRs (CVE-2025-40778)\n  * bind: Cache poisoning due to weak PRNG (CVE-2025-40780)\n  * bind: Resource exhaustion via malformed DNSKEY handling (CVE-2025-8677)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
  "id": "ALSA-2025:21111",
  "modified": "2025-12-01T08:06:30Z",
  "published": "2025-11-12T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2025:21111"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-40778"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-40780"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-8677"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2405827"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2405829"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2405830"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/9/ALSA-2025-21111.html"
    }
  ],
  "related": [
    "CVE-2025-40778",
    "CVE-2025-40780",
    "CVE-2025-8677"
  ],
  "summary": "Important: bind9.18 security update"
}

CVE-2025-40780 (GCVE-0-2025-40780)

Vulnerability from cvelistv5 – Published: 2025-10-22 15:48 – Updated: 2025-11-04 21:10

Title

Cache poisoning due to weak PRNG

Summary

In specific circumstances, due to a weakness in the Pseudo Random Number Generator (PRNG) that is used, it is possible for an attacker to predict the source port and query ID that BIND will use. This issue affects BIND 9 versions 9.16.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.16.8-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.

Severity ?

8.6 (High)


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

CWE

CWE-341 - Predictable from Observable State

Assigner

isc

References

URL

Tags

https://kb.isc.org/docs/cve-2025-40780

vendor-advisory

Impacted products

	Vendor	Product	Version
	ISC	BIND 9	Affected: 9.16.0 , ≤ 9.16.50 (custom) Affected: 9.18.0 , ≤ 9.18.39 (custom) Affected: 9.20.0 , ≤ 9.20.13 (custom) Affected: 9.21.0 , ≤ 9.21.12 (custom) Affected: 9.16.8-S1 , ≤ 9.16.50-S1 (custom) Affected: 9.18.11-S1 , ≤ 9.18.39-S1 (custom) Affected: 9.20.9-S1 , ≤ 9.20.13-S1 (custom)

Credits

ISC would like to thank Prof. Amit Klein and Omer Ben Simhon from Hebrew University of Jerusalem for bringing this vulnerability to our attention.

Show details on NVD website

JSON

To clipboard

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CVE-2025-8677 (GCVE-0-2025-8677)

Vulnerability from cvelistv5 – Published: 2025-10-22 15:43 – Updated: 2025-11-04 21:15

Title

Resource exhaustion via malformed DNSKEY handling

Summary

Querying for records within a specially crafted zone containing certain malformed DNSKEY records can lead to CPU exhaustion. This issue affects BIND 9 versions 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.

Severity ?

7.5 (High)


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

CWE

CWE-405 - Asymmetric Resource Consumption (Amplification)

Assigner

isc

References

URL

Tags

https://kb.isc.org/docs/cve-2025-8677

vendor-advisory

Impacted products

	Vendor	Product	Version
	ISC	BIND 9	Affected: 9.18.0 , ≤ 9.18.39 (custom) Affected: 9.20.0 , ≤ 9.20.13 (custom) Affected: 9.21.0 , ≤ 9.21.12 (custom) Affected: 9.18.11-S1 , ≤ 9.18.39-S1 (custom) Affected: 9.20.9-S1 , ≤ 9.20.13-S1 (custom)

Credits

ISC would like to thank Zuyao Xu and Xiang Li from the All-in-One Security and Privacy Laboratory at Nankai University for bringing this vulnerability to our attention.

Show details on NVD website

JSON

To clipboard

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CVE-2025-40778 (GCVE-0-2025-40778)

Vulnerability from cvelistv5 – Published: 2025-10-22 15:47 – Updated: 2025-11-07 04:56

Title

Cache poisoning attacks with unsolicited RRs

Summary

Under certain circumstances, BIND is too lenient when accepting records from answers, allowing an attacker to inject forged data into the cache. This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.

Severity ?

8.6 (High)


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

CWE

CWE-349 - Acceptance of Extraneous Untrusted Data With Trusted Data

Assigner

isc

References

URL

Tags

https://kb.isc.org/docs/cve-2025-40778

vendor-advisory

Impacted products

	Vendor	Product	Version
	ISC	BIND 9	Affected: 9.11.0 , ≤ 9.16.50 (custom) Affected: 9.18.0 , ≤ 9.18.39 (custom) Affected: 9.20.0 , ≤ 9.20.13 (custom) Affected: 9.21.0 , ≤ 9.21.12 (custom) Affected: 9.11.3-S1 , ≤ 9.16.50-S1 (custom) Affected: 9.18.11-S1 , ≤ 9.18.39-S1 (custom) Affected: 9.20.9-S1 , ≤ 9.20.13-S1 (custom)

Credits

ISC would like to thank Yuxiao Wu, Yunyi Zhang, Baojun Liu, and Haixin Duan from Tsinghua University for bringing this vulnerability to our attention.

Show details on NVD website

JSON

To clipboard

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              "exploit"
            ],
            "url": "https://gist.github.com/N3mes1s/f76b4a606308937b0806a5256bc1f918"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T21:10:14.114Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/10/22/1"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "BIND 9",
          "vendor": "ISC",
          "versions": [
            {
              "lessThanOrEqual": "9.16.50",
              "status": "affected",
              "version": "9.11.0",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "9.18.39",
              "status": "affected",
              "version": "9.18.0",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "9.20.13",
              "status": "affected",
              "version": "9.20.0",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "9.21.12",
              "status": "affected",
              "version": "9.21.0",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "9.16.50-S1",
              "status": "affected",
              "version": "9.11.3-S1",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "9.18.39-S1",
              "status": "affected",
              "version": "9.18.11-S1",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "9.20.13-S1",
              "status": "affected",
              "version": "9.20.9-S1",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "ISC would like to thank Yuxiao Wu, Yunyi Zhang, Baojun Liu, and Haixin Duan from Tsinghua University for bringing this vulnerability to our attention."
        }
      ],
      "datePublic": "2025-10-22T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Under certain circumstances, BIND is too lenient when accepting records from answers, allowing an attacker to inject forged data into the cache.\nThis issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "We are not aware of any active exploits."
        }
      ],
      "impacts": [
        {
          "descriptions": [
            {
              "lang": "en",
              "value": "Forged records can be injected into cache during a query, which can potentially affect resolution of future queries."
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-349",
              "description": "CWE-349 Acceptance of Extraneous Untrusted Data With Trusted Data",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-22T15:47:13.243Z",
        "orgId": "404fd4d2-a609-4245-b543-2c944a302a22",
        "shortName": "isc"
      },
      "references": [
        {
          "name": "CVE-2025-40778",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://kb.isc.org/docs/cve-2025-40778"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to the patched release most closely related to your current version of BIND 9: 9.18.41, 9.20.15, 9.21.14, 9.18.41-S1, or 9.20.15-S1."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Cache poisoning attacks with unsolicited RRs",
      "workarounds": [
        {
          "lang": "en",
          "value": "No workarounds known."
        }
      ],
      "x_generator": {
        "engine": "cvelib 1.8.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
    "assignerShortName": "isc",
    "cveId": "CVE-2025-40778",
    "datePublished": "2025-10-22T15:47:13.243Z",
    "dateReserved": "2025-04-16T08:44:49.857Z",
    "dateUpdated": "2025-11-07T04:56:12.201Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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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.

Action not permitted

alsa-2025:21111

Vulnerability from osv_almalinux

CVE-2025-40780 (GCVE-0-2025-40780)

CVE-2025-8677 (GCVE-0-2025-8677)

CVE-2025-40778 (GCVE-0-2025-40778)

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