USN-7047-1

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Source
https://ubuntu.com/security/notices/USN-7047-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7047-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-7047-1
Related
Published
2024-10-01T06:53:06.354673Z
Modified
2024-10-01T06:53:06.354673Z
Summary
knot-resolver vulnerabilities
Details

Vladimír Čunát discovered that Knot Resolver incorrectly handled input during DNSSEC validation. A remote attacker could possibly use this issue to bypass certain validations. (CVE-2019-10190)

Vladimír Čunát discovered that Knot Resolver incorrectly handled input during DNSSEC validation. A remote attacker could possibly use this issue to downgrade DNSSEC-secure domains to a DNSSEC-insecure state, resulting in a domain hijacking attack. (CVE-2019-10191)

Vladimír Čunát discovered that Knot Resolver incorrectly handled certain DNS replies with many resource records. An attacker could possibly use this issue to consume system resources, resulting in a denial of service. (CVE-2019-19331)

Lior Shafir, Yehuda Afek, and Anat Bremler-Barr discovered that Knot Resolver incorrectly handled certain queries. A remote attacker could use this issue to perform an amplification attack directed at a target. (CVE-2020-12667)

References

Affected packages

Ubuntu:20.04:LTS / knot-resolver

Package

Name
knot-resolver
Purl
pkg:deb/ubuntu/knot-resolver?arch=src?distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.2.1-3ubuntu2.2

Affected versions

3.*

3.2.1-3
3.2.1-3ubuntu1
3.2.1-3ubuntu2
3.2.1-3ubuntu2.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "3.2.1-3ubuntu2.2",
            "binary_name": "knot-resolver"
        },
        {
            "binary_version": "3.2.1-3ubuntu2.2",
            "binary_name": "knot-resolver-doc"
        },
        {
            "binary_version": "3.2.1-3ubuntu2.2",
            "binary_name": "knot-resolver-module-http"
        }
    ]
}