UBUNTU-CVE-2025-30193

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Source
https://ubuntu.com/security/CVE-2025-30193
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-30193.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2025-30193
Related
Published
2025-05-20T12:15:00Z
Modified
2025-06-03T18:00:26Z
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

Ubuntu:Pro:16.04:LTS / dnsdist

Package

Name
dnsdist
Purl
pkg:deb/ubuntu/dnsdist@1.0.0~alpha2-1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.0.0~alpha2-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:18.04:LTS / dnsdist

Package

Name
dnsdist
Purl
pkg:deb/ubuntu/dnsdist@1.2.1-1build1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.2.0-1
1.2.0-3
1.2.1-1
1.2.1-1build1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:20.04:LTS / dnsdist

Package

Name
dnsdist
Purl
pkg:deb/ubuntu/dnsdist@1.4.0-1build2?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.4.0~rc3-1
1.4.0-1
1.4.0-1build1
1.4.0-1build2

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:22.04:LTS / dnsdist

Package

Name
dnsdist
Purl
pkg:deb/ubuntu/dnsdist@1.6.1-1build1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.5.1-3build2
1.6.1-1build1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.10 / dnsdist

Package

Name
dnsdist
Purl
pkg:deb/ubuntu/dnsdist@1.9.6-1?arch=source&distro=oracular

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.8.3-2build2
1.9.3-1
1.9.3-1build1
1.9.3-1build2
1.9.4-1
1.9.5-1
1.9.6-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.04:LTS / dnsdist

Package

Name
dnsdist
Purl
pkg:deb/ubuntu/dnsdist@1.8.3-2build2?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.8.0-1
1.8.2-1
1.8.2-2
1.8.2-3
1.8.3-1
1.8.3-2
1.8.3-2build1
1.8.3-2build2

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:25.04 / dnsdist

Package

Name
dnsdist
Purl
pkg:deb/ubuntu/dnsdist@1.9.8-1?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.9.6-1
1.9.8-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}