UBUNTU-CVE-2025-30187

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Source
https://ubuntu.com/security/CVE-2025-30187
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-30187.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-30187
Upstream
Downstream
Related
Published
2025-09-18T10:15:00Z
Modified
2026-02-13T18:28:56.469328Z
Severity
  • 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:25.10 / dnsdist

Package

Name
dnsdist
Purl
pkg:deb/ubuntu/dnsdist@1.9.10-1ubuntu0.1?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.9.10-1ubuntu0.1

Affected versions

1.*
1.9.8-1
1.9.10-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "dnsdist",
            "binary_version": "1.9.10-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-30187.json"