DEBIAN-CVE-2025-30193
- Source
- https://security-tracker.debian.org/tracker/CVE-2025-30193
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-30193.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-30193
- Upstream
- Published
- 2025-05-20T12:15:19.697Z
- Modified
- 2026-03-17T02:51:36.453332Z
- 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
- [none]
- 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.
- References
Affected packages
Debian:11 / dnsdist
Package
- Name
- dnsdist
- Purl
- pkg:deb/debian/dnsdist?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affected
Affected versions
1.*
1.5.1-3
1.6.0-1
1.6.0-2
1.6.1-1
1.7.0-1
1.7.1-1
1.7.2-1
1.7.2-2
1.7.3-1
1.7.3-2
1.8.0-1
1.8.1-1
1.8.2-1
1.8.2-2
1.8.2-3
1.8.3-1
1.8.3-2
1.8.3-3
1.9.3-1
1.9.4-1
1.9.5-1
1.9.6-1
1.9.8-1
1.9.9-1
1.9.10-1
2.*
2.0.0~rc1-1
2.0.0~rc1-2
2.0.0~rc2-1
2.0.0-1
2.0.0-2
2.0.0-3
2.0.0-4
2.0.0-5
2.0.0-6
2.0.1-1
2.0.2-1
Debian:12 / dnsdist
Package
- Name
- dnsdist
- Purl
- pkg:deb/debian/dnsdist?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affected
Debian:13 / dnsdist
Package
- Name
- dnsdist
- Purl
- pkg:deb/debian/dnsdist?arch=source
Debian:14 / dnsdist
Package
- Name
- dnsdist
- Purl
- pkg:deb/debian/dnsdist?arch=source