CVE-2025-30193

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Source
https://cve.org/CVERecord?id=CVE-2025-30193
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-30193.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-30193
Downstream
DEBIAN (1)
SUSE (3)
UBUNTU (1)
Related
SUSE (3)
Published
2025-05-20T11:17:17Z
Modified
2026-10-21T02:52:22Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Denial of service via crafted TCP exchange
Details

In some circumstances, when DNSdist is configured to allow an unlimited number of queries on a single, incoming TCP connection from a client, an attacker can cause a denial of service by crafting a TCP exchange that triggers an exhaustion of the stack and a crash of DNSdist, causing a denial of service.

The remedy is: upgrade to the patched 1.9.10 version.

A workaround is to restrict the maximum number of queries on incoming TCP connections to a safe value, like 50, via the setMaxTCPQueriesPerConnection setting.

We would like to thank Renaud Allard for bringing this issue to our attention.

Database specific 
{
    "cna_assigner":  "OX",
    "cwe_ids":  [
        "CWE-674"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/30xxx/CVE-2025-30193.json"
}
References

Affected packages

Git / github.com/powerdns/pdns

Affected ranges

Type
GIT
Repo
https://github.com/powerdns/pdns
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
a1ab4e4d0764d2f36eec35f169f81e30281a9b09
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "1.9.10"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "InverseAffectedRanges"
        }
    ]
}

Affected versions

auth-3.*
auth-3.1-rc1
auth-3.1-rc2
auth-3.1-rc3
auth-3.2-rc1
auth-3.2-rc2
auth-3.2-rc3
auth-3.2-rc4
auth-3.4.0
auth-3.4.0-rc1
auth-3.4.0-rc2
auth-4.*
auth-4.0.0
auth-4.0.0-alpha1
auth-4.0.0-alpha2
auth-4.0.0-alpha3
auth-4.0.0-beta1
auth-4.0.0-rc1
auth-4.0.0-rc2
auth-4.0.1
auth-4.1.0
auth-4.1.0-rc1
auth-4.1.0-rc2
auth-4.1.0-rc3
auth-4.2.0-alpha1
auth-4.2.0-beta1
auth-4.2.0-rc1
auth-4.2.0-rc2
auth-4.3.0-alpha1
auth-4.3.0-beta1
auth-4.3.0-beta2
auth-4.4.0-alpha0
auth-4.4.0-alpha1
auth-4.4.0-alpha2
auth-4.4.0-alpha3
auth-4.4.0-beta1
auth-4.5.0-alpha0
auth-4.5.0-alpha1
auth-4.5.0-beta1
auth-4.6.0-alpha0
auth-4.6.0-alpha1
auth-4.6.0-beta1
auth-4.7.0-alpha1
auth-4.8.0-alpha0
auth-4.8.0-alpha1
auth-4.8.0-beta1
auth-4.9.0-alpha1
dnsdist-1.*
dnsdist-1.0.0
dnsdist-1.0.0-alpha1
dnsdist-1.0.0-alpha2
dnsdist-1.0.0-beta1
dnsdist-1.1.0
dnsdist-1.1.0-beta1
dnsdist-1.1.0-beta2
dnsdist-1.2.0
dnsdist-1.3.0
dnsdist-1.3.1
dnsdist-1.3.2
dnsdist-1.3.3
dnsdist-1.4.0
dnsdist-1.4.0-alpha1
dnsdist-1.4.0-alpha2
dnsdist-1.4.0-beta1
dnsdist-1.4.0-rc1
dnsdist-1.4.0-rc2
dnsdist-1.4.0-rc3
dnsdist-1.4.0-rc4
dnsdist-1.4.0-rc5
dnsdist-1.5.0
dnsdist-1.5.0-alpha1
dnsdist-1.5.0-rc1
dnsdist-1.5.0-rc2
dnsdist-1.5.0-rc3
dnsdist-1.5.0-rc4
dnsdist-1.6.0
dnsdist-1.6.0-alpha0
dnsdist-1.6.0-alpha1
dnsdist-1.6.0-alpha2
dnsdist-1.6.0-alpha3
dnsdist-1.6.0-rc1
dnsdist-1.6.0-rc2
dnsdist-1.7.0-alpha0
dnsdist-1.7.0-alpha1
dnsdist-1.7.0-alpha2
dnsdist-1.7.0-beta1
dnsdist-1.7.0-beta2
dnsdist-1.8.0
dnsdist-1.8.0-alpha0
dnsdist-1.8.0-rc1
dnsdist-1.8.0-rc2
dnsdist-1.8.0-rc3
dnsdist-1.9.0
dnsdist-1.9.0-alpha0
dnsdist-1.9.0-alpha1
dnsdist-1.9.0-alpha2
dnsdist-1.9.0-alpha3
dnsdist-1.9.0-alpha4
dnsdist-1.9.0-rc1
dnsdist-1.9.1
dnsdist-1.9.2
dnsdist-1.9.3
dnsdist-1.9.4
dnsdist-1.9.5
dnsdist-1.9.6
dnsdist-1.9.7
dnsdist-1.9.8
dnsdist-1.9.9
Other
rec-3-0
rec-3-0-1
rec-3.*
rec-3.0
rec-3.0.1
rec-3.1.4
rec-3.3.1
rec-3.5
rec-3.5-rc1
rec-3.5-rc3
rec-3.5-rc4
rec-3.5-rc5
rec-3.6.0
rec-4.*
rec-4.0.0
rec-4.0.0-alpha1
rec-4.0.0-alpha2
rec-4.0.0-alpha3
rec-4.0.0-beta1
rec-4.0.0-rc1
rec-4.0.1
rec-4.0.2
rec-4.1.0
rec-4.1.0-alpha1
rec-4.1.0-rc1
rec-4.1.0-rc2
rec-4.1.0-rc3
rec-4.10.0-alpha0
rec-4.2.0-alpha1
rec-4.2.0-beta1
rec-4.2.0-rc1
rec-4.3.0-alpha1
rec-4.3.0-alpha2
rec-4.3.0-alpha3
rec-4.3.0-beta1
rec-4.4.0-alpha0
rec-4.4.0-alpha1
rec-4.4.0-alpha2
rec-4.4.0-beta1
rec-4.5.0-alpha0
rec-4.5.0-alpha1
rec-4.5.0-alpha2
rec-4.5.0-alpha3
rec-4.5.0-beta1
rec-4.6.0-alpha0
rec-4.6.0-alpha1
rec-4.6.0-alpha2
rec-4.6.0-beta1
rec-4.6.0-beta2
rec-4.7.0-alpha1
rec-4.7.0-beta1
rec-4.8.0-alpha1
rec-4.9.0-alpha0
rec-4.9.0-alpha1
rec-4.9.0-beta1
rec-5.*
rec-5.0.0-alpha1
rec-5.0.0-alpha2
rec-5.0.0-beta1
rec-5.1.0-alpha0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-30193.json"