suse-su-2025:20359-1
Vulnerability from csaf_suse
Published
2025-05-27 08:56
Modified
2025-05-27 08:56
Summary
Security update for unbound

Notes

Title of the patch
Security update for unbound
Description of the patch
This update for unbound fixes the following issues: Update to 1.22.0: - CVE-2024-8508: Fixed unbounded name compression that could have led to a denial of service (bsc#1231284).
Patchnames
SUSE-SLE-Micro-6.1-123
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


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{
  "document": {
    "aggregate_severity": {
      "namespace": "https://www.suse.com/support/security/rating/",
      "text": "moderate"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Security update for unbound",
        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "This update for unbound fixes the following issues:\n\nUpdate to 1.22.0:\n\n- CVE-2024-8508: Fixed unbounded name compression that could have led to a denial of service (bsc#1231284).\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "SUSE-SLE-Micro-6.1-123",
        "title": "Patchnames"
      },
      {
        "category": "legal_disclaimer",
        "text": "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).",
        "title": "Terms of use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://www.suse.com/support/security/contact/",
      "name": "SUSE Product Security Team",
      "namespace": "https://www.suse.com/"
    },
    "references": [
      {
        "category": "external",
        "summary": "SUSE ratings",
        "url": "https://www.suse.com/support/security/rating/"
      },
      {
        "category": "self",
        "summary": "URL of this CSAF notice",
        "url": "https://ftp.suse.com/pub/projects/security/csaf/suse-su-2025_20359-1.json"
      },
      {
        "category": "self",
        "summary": "URL for SUSE-SU-2025:20359-1",
        "url": "https://www.suse.com/support/update/announcement/2025/suse-su-202520359-1/"
      },
      {
        "category": "self",
        "summary": "E-Mail link for SUSE-SU-2025:20359-1",
        "url": "https://lists.suse.com/pipermail/sle-updates/2025-June/039500.html"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1231284",
        "url": "https://bugzilla.suse.com/1231284"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2024-8508 page",
        "url": "https://www.suse.com/security/cve/CVE-2024-8508/"
      }
    ],
    "title": "Security update for unbound",
    "tracking": {
      "current_release_date": "2025-05-27T08:56:36Z",
      "generator": {
        "date": "2025-05-27T08:56:36Z",
        "engine": {
          "name": "cve-database.git:bin/generate-csaf.pl",
          "version": "1"
        }
      },
      "id": "SUSE-SU-2025:20359-1",
      "initial_release_date": "2025-05-27T08:56:36Z",
      "revision_history": [
        {
          "date": "2025-05-27T08:56:36Z",
          "number": "1",
          "summary": "Current version"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "libunbound8-1.22.0-slfo.1.1_1.1.aarch64",
                "product": {
                  "name": "libunbound8-1.22.0-slfo.1.1_1.1.aarch64",
                  "product_id": "libunbound8-1.22.0-slfo.1.1_1.1.aarch64"
                }
              },
              {
                "category": "product_version",
                "name": "unbound-anchor-1.22.0-slfo.1.1_1.1.aarch64",
                "product": {
                  "name": "unbound-anchor-1.22.0-slfo.1.1_1.1.aarch64",
                  "product_id": "unbound-anchor-1.22.0-slfo.1.1_1.1.aarch64"
                }
              }
            ],
            "category": "architecture",
            "name": "aarch64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "libunbound8-1.22.0-slfo.1.1_1.1.s390x",
                "product": {
                  "name": "libunbound8-1.22.0-slfo.1.1_1.1.s390x",
                  "product_id": "libunbound8-1.22.0-slfo.1.1_1.1.s390x"
                }
              },
              {
                "category": "product_version",
                "name": "unbound-anchor-1.22.0-slfo.1.1_1.1.s390x",
                "product": {
                  "name": "unbound-anchor-1.22.0-slfo.1.1_1.1.s390x",
                  "product_id": "unbound-anchor-1.22.0-slfo.1.1_1.1.s390x"
                }
              }
            ],
            "category": "architecture",
            "name": "s390x"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "libunbound8-1.22.0-slfo.1.1_1.1.x86_64",
                "product": {
                  "name": "libunbound8-1.22.0-slfo.1.1_1.1.x86_64",
                  "product_id": "libunbound8-1.22.0-slfo.1.1_1.1.x86_64"
                }
              },
              {
                "category": "product_version",
                "name": "unbound-anchor-1.22.0-slfo.1.1_1.1.x86_64",
                "product": {
                  "name": "unbound-anchor-1.22.0-slfo.1.1_1.1.x86_64",
                  "product_id": "unbound-anchor-1.22.0-slfo.1.1_1.1.x86_64"
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_name",
                "name": "SUSE Linux Micro 6.1",
                "product": {
                  "name": "SUSE Linux Micro 6.1",
                  "product_id": "SUSE Linux Micro 6.1",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:sl-micro:6.1"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "SUSE Linux Enterprise"
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libunbound8-1.22.0-slfo.1.1_1.1.aarch64 as component of SUSE Linux Micro 6.1",
          "product_id": "SUSE Linux Micro 6.1:libunbound8-1.22.0-slfo.1.1_1.1.aarch64"
        },
        "product_reference": "libunbound8-1.22.0-slfo.1.1_1.1.aarch64",
        "relates_to_product_reference": "SUSE Linux Micro 6.1"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libunbound8-1.22.0-slfo.1.1_1.1.s390x as component of SUSE Linux Micro 6.1",
          "product_id": "SUSE Linux Micro 6.1:libunbound8-1.22.0-slfo.1.1_1.1.s390x"
        },
        "product_reference": "libunbound8-1.22.0-slfo.1.1_1.1.s390x",
        "relates_to_product_reference": "SUSE Linux Micro 6.1"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libunbound8-1.22.0-slfo.1.1_1.1.x86_64 as component of SUSE Linux Micro 6.1",
          "product_id": "SUSE Linux Micro 6.1:libunbound8-1.22.0-slfo.1.1_1.1.x86_64"
        },
        "product_reference": "libunbound8-1.22.0-slfo.1.1_1.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Micro 6.1"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "unbound-anchor-1.22.0-slfo.1.1_1.1.aarch64 as component of SUSE Linux Micro 6.1",
          "product_id": "SUSE Linux Micro 6.1:unbound-anchor-1.22.0-slfo.1.1_1.1.aarch64"
        },
        "product_reference": "unbound-anchor-1.22.0-slfo.1.1_1.1.aarch64",
        "relates_to_product_reference": "SUSE Linux Micro 6.1"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "unbound-anchor-1.22.0-slfo.1.1_1.1.s390x as component of SUSE Linux Micro 6.1",
          "product_id": "SUSE Linux Micro 6.1:unbound-anchor-1.22.0-slfo.1.1_1.1.s390x"
        },
        "product_reference": "unbound-anchor-1.22.0-slfo.1.1_1.1.s390x",
        "relates_to_product_reference": "SUSE Linux Micro 6.1"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "unbound-anchor-1.22.0-slfo.1.1_1.1.x86_64 as component of SUSE Linux Micro 6.1",
          "product_id": "SUSE Linux Micro 6.1:unbound-anchor-1.22.0-slfo.1.1_1.1.x86_64"
        },
        "product_reference": "unbound-anchor-1.22.0-slfo.1.1_1.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Micro 6.1"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2024-8508",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2024-8508"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "NLnet Labs Unbound up to and including version 1.21.0 contains a vulnerability when handling replies with very large RRsets that it needs to perform name compression for. Malicious upstreams responses with very large RRsets can cause Unbound to spend a considerable time applying name compression to downstream replies. This can lead to degraded performance and eventually denial of service in well orchestrated attacks. The vulnerability can be exploited by a malicious actor querying Unbound for the specially crafted contents of a malicious zone with very large RRsets. Before Unbound replies to the query it will try to apply name compression which was an unbounded operation that could lock the CPU until the whole packet was complete. Unbound version 1.21.1 introduces a hard limit on the number of name compression calculations it is willing to do per packet. Packets that need more compression will result in semi-compressed packets or truncated packets, even on TCP for huge messages, to avoid locking the CPU for long. This change should not affect normal DNS traffic.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Micro 6.1:libunbound8-1.22.0-slfo.1.1_1.1.aarch64",
          "SUSE Linux Micro 6.1:libunbound8-1.22.0-slfo.1.1_1.1.s390x",
          "SUSE Linux Micro 6.1:libunbound8-1.22.0-slfo.1.1_1.1.x86_64",
          "SUSE Linux Micro 6.1:unbound-anchor-1.22.0-slfo.1.1_1.1.aarch64",
          "SUSE Linux Micro 6.1:unbound-anchor-1.22.0-slfo.1.1_1.1.s390x",
          "SUSE Linux Micro 6.1:unbound-anchor-1.22.0-slfo.1.1_1.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2024-8508",
          "url": "https://www.suse.com/security/cve/CVE-2024-8508"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1231284 for CVE-2024-8508",
          "url": "https://bugzilla.suse.com/1231284"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Micro 6.1:libunbound8-1.22.0-slfo.1.1_1.1.aarch64",
            "SUSE Linux Micro 6.1:libunbound8-1.22.0-slfo.1.1_1.1.s390x",
            "SUSE Linux Micro 6.1:libunbound8-1.22.0-slfo.1.1_1.1.x86_64",
            "SUSE Linux Micro 6.1:unbound-anchor-1.22.0-slfo.1.1_1.1.aarch64",
            "SUSE Linux Micro 6.1:unbound-anchor-1.22.0-slfo.1.1_1.1.s390x",
            "SUSE Linux Micro 6.1:unbound-anchor-1.22.0-slfo.1.1_1.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Micro 6.1:libunbound8-1.22.0-slfo.1.1_1.1.aarch64",
            "SUSE Linux Micro 6.1:libunbound8-1.22.0-slfo.1.1_1.1.s390x",
            "SUSE Linux Micro 6.1:libunbound8-1.22.0-slfo.1.1_1.1.x86_64",
            "SUSE Linux Micro 6.1:unbound-anchor-1.22.0-slfo.1.1_1.1.aarch64",
            "SUSE Linux Micro 6.1:unbound-anchor-1.22.0-slfo.1.1_1.1.s390x",
            "SUSE Linux Micro 6.1:unbound-anchor-1.22.0-slfo.1.1_1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-05-27T08:56:36Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2024-8508"
    }
  ]
}


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