SUSE-SU-2025:21065-1

Vulnerability from csaf_suse - Published: 2025-11-26 14:26 - Updated: 2025-11-26 14:26
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: - CVE-2025-11411: Fixed promiscuous records leading to domain hijacking (bsc#1252525)
Patchnames
SUSE-SLE-Micro-6.1-343
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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{
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  "vulnerabilities": [
    {
      "cve": "CVE-2025-11411",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-11411"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "NLnet Labs Unbound up to and including version 1.24.2 is vulnerable to possible domain hijack attacks. Promiscuous NS RRSets that complement positive DNS replies in the authority section can be used to trick resolvers to update their delegation information for the zone. Usually these RRSets are used to update the resolver\u0027s knowledge of the zone\u0027s name servers. A malicious actor can exploit the possible poisonous effect by injecting NS RRSets (and possibly their respective address records) in a reply. This could be done for example by trying to spoof a packet or fragmentation attacks. Unbound would then proceed to update the NS RRSet data it already has since the new data has enough trust for it, i.e., in-zone data for the delegation point. Unbound 1.24.1 includes a fix that scrubs unsolicited NS RRSets (and their respective address records) from replies mitigating the possible poison effect. Unbound 1.24.2 includes an additional fix that scrubs unsolicited NS RRSets (and their respective address records) from YXDOMAIN and non-referral nodata replies, further mitigating the possible poison effect.",
          "title": "CVE description"
        }
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          "summary": "CVE-2025-11411",
          "url": "https://www.suse.com/security/cve/CVE-2025-11411"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1252525 for CVE-2025-11411",
          "url": "https://bugzilla.suse.com/1252525"
        }
      ],
      "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": [
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      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L",
            "version": "3.1"
          },
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      "threats": [
        {
          "category": "impact",
          "date": "2025-11-26T14:26:20Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2025-11411"
    }
  ]
}


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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.