USN-8037-1

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Source
https://ubuntu.com/security/notices/USN-8037-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8037-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8037-1
Upstream
Related
Published
2026-02-12T15:41:01Z
Modified
2026-02-13T18:28:49.294948Z
Summary
dnsdist vulnerabilities
Details

It was discovered that HTTP/2, which is used/vendored by DNSdist, did not properly account for resources when handling client-triggered stream resets. An attacker could possibly use this issue to cause a denial of service. (CVE-2025-8671)

It was discovered that DNSdist did not properly manage memory limits when handling an unlimited number of queries on a single TCP connection. An attacker could possibly use this issue to cause a denial of service. (CVE-2025-30193)

It was discovered that DNSdist, when configured with the nghttp2 library, did not correctly process certain DNS over HTTPS queries. An attacker could possibly use this cause a denial of service. (CVE-2025-30187)

References

Affected packages

Ubuntu:Pro:22.04:LTS / dnsdist

Package

Name
dnsdist
Purl
pkg:deb/ubuntu/dnsdist@1.6.1-1ubuntu0.1~esm2?arch=source&distro=esm-apps/jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.1-1ubuntu0.1~esm2

Affected versions

1.*
1.5.1-3build2
1.6.1-1build1
1.6.1-1ubuntu0.1~esm1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "dnsdist",
            "binary_version": "1.6.1-1ubuntu0.1~esm2"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2025-30193",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:22.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8037-1.json"

Ubuntu:Pro:24.04:LTS / dnsdist

Package

Name
dnsdist
Purl
pkg:deb/ubuntu/dnsdist@1.8.3-2ubuntu0.1~esm1?arch=source&distro=esm-apps/noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.3-2ubuntu0.1~esm1

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 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "dnsdist",
            "binary_version": "1.8.3-2ubuntu0.1~esm1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2025-8671",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2025-30193",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:24.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8037-1.json"

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

cves_map 
{
    "cves": [
        {
            "id": "CVE-2025-8671",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2025-30187",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:25.10"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8037-1.json"