suse-su-2025:21050-1
Vulnerability from csaf_suse
Published
2025-11-20 11:36
Modified
2025-11-20 11:36
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-6.0-526
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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"vulnerabilities": [
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"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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{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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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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"date": "2025-11-20T11:36:47Z",
"details": "moderate"
}
],
"title": "CVE-2025-11411"
}
]
}
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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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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