OPENSUSE-SU-2026:20461-1

Vulnerability from csaf_opensuse - Published: 2026-04-02 09:11 - Updated: 2026-09-17 17:29
Summary
Security update for dnsdist
Severity
Low
Notes
Title of the patch: Security update for dnsdist
Description of the patch: This update for dnsdist fixes the following issues: Update to dnsdist 1.9.11: - CVE-2025-8671: add mitigations for the HTTP/2 MadeYouReset attack (bsc#1253852). - CVE-2025-30187: denial of service via crafted DoH exchange (bsc#1250054).
Patchnames: openSUSE-Leap-16.0-475
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2025-30187
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
Product Identifier Version Remediation
Unresolved product id: openSUSE Leap 16.0:dnsdist-0:1.9.11-160000.1.1.aarch64 —
Vendor Fix
Unresolved product id: openSUSE Leap 16.0:dnsdist-0:1.9.11-160000.1.1.ppc64le —
Vendor Fix
Unresolved product id: openSUSE Leap 16.0:dnsdist-0:1.9.11-160000.1.1.s390x —
Vendor Fix
Unresolved product id: openSUSE Leap 16.0:dnsdist-0:1.9.11-160000.1.1.x86_64 —
Vendor Fix
Threats
Impact moderate
CVE-2025-8671
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 4 products, the same list as for CVE-2025-30187
Threats
Impact important
References
To clipboard 

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          "text": "In some circumstances, when DNSdist is configured to use the nghttp2 library to process incoming DNS over HTTPS queries, an attacker might be able to cause a denial of service by crafting a DoH exchange that triggers an unbounded I/O read loop, causing an unexpected consumption of CPU resources.",
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  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.



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.