UBUNTU-CVE-2025-30194

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Source
https://ubuntu.com/security/CVE-2025-30194
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-30194.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-30194
Upstream
Published
2025-04-29T12:15:00Z
Modified
2026-01-20T18:53:49.708467Z
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
  • Ubuntu - medium
Summary
[none]
Details

When DNSdist is configured to provide DoH via the nghttp2 provider, an attacker can cause a denial of service by crafting a DoH exchange that triggers an illegal memory access (double-free) and crash of DNSdist, causing a denial of service. The remedy is: upgrade to the patched 1.9.9 version. A workaround is to temporarily switch to the h2o provider until DNSdist has been upgraded to a fixed version. We would like to thank Charles Howes for bringing this issue to our attention.

References

Affected packages

Ubuntu:16.04:LTS

dnsdist

Package

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

{
    "binaries": [
        {
            "binary_name": "dnsdist",
            "binary_version": "1.0.0~alpha2-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-30194.json"

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 

{
    "binaries": [
        {
            "binary_name": "dnsdist",
            "binary_version": "1.8.3-2build2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-30194.json"

Ubuntu:25.10

dnsdist

Package

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

Affected ranges

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

Affected versions

1.*

1.9.8-1
1.9.10-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "dnsdist",
            "binary_version": "1.9.10-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-30194.json"

Ubuntu:Pro:18.04:LTS

dnsdist

Package

Name
dnsdist
Purl
pkg:deb/ubuntu/dnsdist@1.2.1-1ubuntu0.1~esm1?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
1.2.1-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "dnsdist",
            "binary_version": "1.2.1-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-30194.json"

Ubuntu:Pro:20.04:LTS

dnsdist

Package

Name
dnsdist
Purl
pkg:deb/ubuntu/dnsdist@1.4.0-1ubuntu0.1~esm1?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
1.4.0-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "dnsdist",
            "binary_version": "1.4.0-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-30194.json"

Ubuntu:Pro:22.04:LTS

dnsdist

Package

Name
dnsdist
Purl
pkg:deb/ubuntu/dnsdist@1.6.1-1ubuntu0.1~esm1?arch=source&distro=esm-apps/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
1.6.1-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "dnsdist",
            "binary_version": "1.6.1-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-30194.json"