USN-6435-2

Source
https://ubuntu.com/security/notices/USN-6435-2
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6435-2.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-6435-2
Upstream
Related
Published
2023-10-25T12:40:20.924657Z
Modified
2025-10-13T04:36:39Z
Summary
openssl vulnerabilities
Details

USN-6435-1 fixed vulnerabilities in OpenSSL. This update provides the corresponding updates for Ubuntu 20.04 LTS.

Original advisory details:

It was discovered that OpenSSL incorrectly handled excessively large Diffie-Hellman parameters. An attacker could possibly use this issue to cause a denial of service. (CVE-2023-3446)

Bernd Edlinger discovered that OpenSSL incorrectly handled excessively large Diffie-Hellman parameters. An attacker could possibly use this issue to cause a denial of service. (CVE-2023-3817)

References

Affected packages

Ubuntu:20.04:LTS / openssl

Package

Name
openssl
Purl
pkg:deb/ubuntu/openssl@1.1.1f-1ubuntu2.20?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.1f-1ubuntu2.20

Affected versions

1.*

1.1.1c-1ubuntu4
1.1.1d-2ubuntu3
1.1.1d-2ubuntu6
1.1.1f-1ubuntu1
1.1.1f-1ubuntu2
1.1.1f-1ubuntu2.1
1.1.1f-1ubuntu2.2
1.1.1f-1ubuntu2.3
1.1.1f-1ubuntu2.4
1.1.1f-1ubuntu2.5
1.1.1f-1ubuntu2.8
1.1.1f-1ubuntu2.9
1.1.1f-1ubuntu2.10
1.1.1f-1ubuntu2.11
1.1.1f-1ubuntu2.12
1.1.1f-1ubuntu2.13
1.1.1f-1ubuntu2.15
1.1.1f-1ubuntu2.16
1.1.1f-1ubuntu2.17
1.1.1f-1ubuntu2.18
1.1.1f-1ubuntu2.19

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libssl-dev",
            "binary_version": "1.1.1f-1ubuntu2.20"
        },
        {
            "binary_name": "libssl1.1",
            "binary_version": "1.1.1f-1ubuntu2.20"
        },
        {
            "binary_name": "openssl",
            "binary_version": "1.1.1f-1ubuntu2.20"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2023-3446"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2023-3817"
        }
    ],
    "ecosystem": "Ubuntu:20.04:LTS"
}