Vulnerability-Lookup

SUSE-SU-2025:0130-1

Vulnerability from csaf_suse - Published: 2025-01-15 13:26 - Updated: 2025-01-15 13:26

Summary

Security update for dnsmasq

Severity

Important

Notes

Title of the patch: Security update for dnsmasq

Description of the patch: This update for dnsmasq fixes the following issues: - Version update to 2.90: - CVE-2023-50387: Fixed a Denial Of Service while trying to validate specially crafted DNSSEC responses. (bsc#1219823) - CVE-2023-50868: Fixed a Denial Of Service while trying to validate specially crafted DNSSEC responses. (bsc#1219826)

Patchnames: SUSE-2025-130,SUSE-SLE-Product-HPC-15-SP3-LTSS-2025-130,SUSE-SLE-Product-SLES-15-SP3-LTSS-2025-130,SUSE-SLE-Product-SLES_SAP-15-SP3-2025-130,SUSE-SUSE-MicroOS-5.1-2025-130,SUSE-SUSE-MicroOS-5.2-2025-130,SUSE-Storage-7.1-2025-130

CVE-2023-50387

7.5 (High)


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

Affected products

Recommended 16 products

Product	Version	Remediation
Unresolved product id: SUSE Enterprise Storage 7.1:dnsmasq-2.90-150100.7.28.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Enterprise Storage 7.1:dnsmasq-2.90-150100.7.28.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:dnsmasq-2.90-150100.7.28.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:dnsmasq-2.90-150100.7.28.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Micro 5.1:dnsmasq-2.90-150100.7.28.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Micro 5.1:dnsmasq-2.90-150100.7.28.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Micro 5.1:dnsmasq-2.90-150100.7.28.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Micro 5.2:dnsmasq-2.90-150100.7.28.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Micro 5.2:dnsmasq-2.90-150100.7.28.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Micro 5.2:dnsmasq-2.90-150100.7.28.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:dnsmasq-2.90-150100.7.28.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:dnsmasq-2.90-150100.7.28.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:dnsmasq-2.90-150100.7.28.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:dnsmasq-2.90-150100.7.28.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP3:dnsmasq-2.90-150100.7.28.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP3:dnsmasq-2.90-150100.7.28.1.x86_64	—	Vendor Fix

Threats

Impact important

CVE-2023-50868

7.5 (High)


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

Affected products

Recommended 16 products, the same list as for CVE-2023-50387

Threats

Impact important

References

20 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://www.suse.com/support/update/announcement/…	self
https://lists.suse.com/pipermail/sle-security-upd…	self
https://bugzilla.suse.com/1200344	self
https://bugzilla.suse.com/1207174	self
https://bugzilla.suse.com/1214884	self
https://bugzilla.suse.com/1219823	self
https://bugzilla.suse.com/1219826	self
https://bugzilla.suse.com/1235517	self
https://www.suse.com/security/cve/CVE-2023-50387/	self
https://www.suse.com/security/cve/CVE-2023-50868/	self
https://www.suse.com/security/cve/CVE-2023-50387	external
https://bugzilla.suse.com/1219823	external
https://bugzilla.suse.com/1220717	external
https://bugzilla.suse.com/1221586	external
https://www.suse.com/security/cve/CVE-2023-50868	external
https://bugzilla.suse.com/1219823	external
https://bugzilla.suse.com/1219826	external
https://bugzilla.suse.com/1221586	external

JSON

To clipboard

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CVE-2023-50387 (GCVE-0-2023-50387)

Vulnerability from cvelistv5 – Published: 2024-02-14 00:00 – Updated: 2025-11-04 18:20

Summary

Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-08 17:27 UTC

CWE

n/a
CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

mitre mitre root

References

36 references

URL	Tags
https://www.athene-center.de/aktuelles/key-trap
https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.1…
https://kb.isc.org/docs/cve-2023-50387
https://docs.powerdns.com/recursor/security-advis…
https://www.theregister.com/2024/02/13/dnssec_vul…
https://news.ycombinator.com/item?id=39367411
https://www.securityweek.com/keytrap-dns-attack-c…
https://www.isc.org/blogs/2024-bind-security-release/
https://news.ycombinator.com/item?id=39372384
https://gitlab.nic.cz/knot/knot-resolver/-/releas…
https://lists.thekelleys.org.uk/pipermail/dnsmasq…
https://msrc.microsoft.com/update-guide/vulnerabi…
https://access.redhat.com/security/cve/CVE-2023-50387
https://bugzilla.suse.com/show_bug.cgi?id=1219823
https://www.athene-center.de/fileadmin/content/PD…
http://www.openwall.com/lists/oss-security/2024/02/16/2	mailing-list
http://www.openwall.com/lists/oss-security/2024/02/16/3	mailing-list
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2024…	mailing-list
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://security.netapp.com/advisory/ntap-2024030…
https://lists.debian.org/debian-lts-announce/2024…	mailing-list
https://lists.debian.org/debian-lts-announce/2024…
https://lists.debian.org/debian-lts-announce/2024…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…

Show details on NVD website

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To clipboard

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CVE-2023-50868 (GCVE-0-2023-50868)

Vulnerability from cvelistv5 – Published: 2024-02-14 00:00 – Updated: 2025-11-04 18:20

Summary

The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the "NSEC3" issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash function in certain situations.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-02-19 20:27 UTC

CWE

n/a
CWE-400 - Uncontrolled Resource Consumption

Assigner

mitre mitre root

References

29 references

URL	Tags
https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.1…
https://docs.powerdns.com/recursor/security-advis…
https://www.isc.org/blogs/2024-bind-security-release/
https://datatracker.ietf.org/doc/html/rfc5155
https://kb.isc.org/docs/cve-2023-50868
https://gitlab.nic.cz/knot/knot-resolver/-/releas…
https://lists.thekelleys.org.uk/pipermail/dnsmasq…
https://access.redhat.com/security/cve/CVE-2023-50868
https://bugzilla.suse.com/show_bug.cgi?id=1219826
http://www.openwall.com/lists/oss-security/2024/02/16/2	mailing-list
http://www.openwall.com/lists/oss-security/2024/02/16/3	mailing-list
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2024…	mailing-list
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://security.netapp.com/advisory/ntap-2024030…
https://lists.debian.org/debian-lts-announce/2024…	mailing-list
https://lists.debian.org/debian-lts-announce/2024…
https://lists.debian.org/debian-lts-announce/2024…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…

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              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20240307-0008/"
          },
          {
            "name": "[debian-lts-announce] 20240517 [SECURITY] [DLA 3816-1] bind9 security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2024/09/msg00001.html"
          },
          {
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/"
          },
          {
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/"
          },
          {
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-50868",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-02-19T20:27:54.663247Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-400",
                "description": "CWE-400 Uncontrolled Resource Consumption",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-12T15:05:24.585Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the \"NSEC3\" issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash function in certain situations."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-06-10T16:14:14.129Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/"
        },
        {
          "url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html"
        },
        {
          "url": "https://www.isc.org/blogs/2024-bind-security-release/"
        },
        {
          "url": "https://datatracker.ietf.org/doc/html/rfc5155"
        },
        {
          "url": "https://kb.isc.org/docs/cve-2023-50868"
        },
        {
          "url": "https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1"
        },
        {
          "url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html"
        },
        {
          "url": "https://access.redhat.com/security/cve/CVE-2023-50868"
        },
        {
          "url": "https://bugzilla.suse.com/show_bug.cgi?id=1219826"
        },
        {
          "name": "[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2024/02/16/2"
        },
        {
          "name": "[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2024/02/16/3"
        },
        {
          "name": "FEDORA-2024-2e26eccfcb",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/"
        },
        {
          "name": "FEDORA-2024-e24211eff0",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/"
        },
        {
          "name": "FEDORA-2024-21310568fa",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/"
        },
        {
          "name": "[debian-lts-announce] 20240221 [SECURITY] [DLA 3736-1] unbound security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html"
        },
        {
          "name": "FEDORA-2024-b0f9656a76",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/"
        },
        {
          "name": "FEDORA-2024-4e36df9dfd",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/"
        },
        {
          "name": "FEDORA-2024-499b9be35f",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/"
        },
        {
          "name": "FEDORA-2024-c36c448396",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/"
        },
        {
          "name": "FEDORA-2024-c967c7d287",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/"
        },
        {
          "name": "FEDORA-2024-e00eceb11c",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/"
        },
        {
          "name": "FEDORA-2024-fae88b73eb",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20240307-0008/"
        },
        {
          "name": "[debian-lts-announce] 20240517 [SECURITY] [DLA 3816-1] bind9 security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2023-50868",
    "datePublished": "2024-02-14T00:00:00.000Z",
    "dateReserved": "2023-12-14T00:00:00.000Z",
    "dateUpdated": "2025-11-04T18:20:42.287Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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

SUSE-SU-2025:0130-1

CVE-2023-50387 (GCVE-0-2023-50387)

CVE-2023-50868 (GCVE-0-2023-50868)

Tags

Sightings

Nomenclature

Related by attack behaviour