The remote Ubuntu 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6709-1 advisory.

    It was discovered that checking excessively long DH keys or parameters may be very slow. A remote attacker     could possibly use this issue to cause OpenSSL to consume resources, resulting in a denial of service.
    (CVE-2023-3446)

    After the fix for CVE-2023-3446 Bernd Edlinger discovered that a large q parameter value can also trigger     an overly long computation during some of these checks. A remote attacker could possibly use this issue to     cause OpenSSL to consume resources, resulting in a denial of service. (CVE-2023-3817)

    David Benjamin discovered that generating excessively long X9.42 DH keys or checking excessively long     X9.42 DH keys or parameters may be very slow. A remote attacker could possibly use this issue to cause     OpenSSL to consume resources, resulting in a denial of service. (CVE-2023-5678)

    Bahaa Naamneh discovered that processing a maliciously formatted PKCS12 file may lead OpenSSL to crash     leading to a potential Denial of Service attack. (CVE-2024-0727)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

Ubuntu 18.04 LTS : OpenSSL vulnerabilities (USN-6709-1)

medium Nessus Plugin ID 192404

Version 1.1

Version 1.0

Version 1.1 Aug 28, 2024, 7:43 PM CVSS metrics ("Cvssv4 score" set to 9.3) CVSS metrics ("Cvssv4 vector" set to "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N") Detection (updated detection logic) Plugin metadata Plugin Feed: 202408281943
Version 1.0 Mar 22, 2024, 12:22 AM New Plugin Feed: 202403220022