usn-6499-2
Vulnerability from osv_ubuntu
Published
2024-01-08 11:39
Modified
2026-04-22 07:37
Summary
gnutls28 vulnerability
Details

USN-6499-1 fixed vulnerabilities in GnuTLS. This update provides the corresponding update for Ubuntu 18.04 LTS.

Original advisory details:

It was discovered that GnuTLS had a timing side-channel when handling certain RSA-PSK key exchanges. A remote attacker could possibly use this issue to recover sensitive information.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-5981",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "gnutls-bin",
            "binary_version": "3.5.18-1ubuntu1.6+esm1"
          },
          {
            "binary_name": "libgnutls-dane0",
            "binary_version": "3.5.18-1ubuntu1.6+esm1"
          },
          {
            "binary_name": "libgnutls-openssl27",
            "binary_version": "3.5.18-1ubuntu1.6+esm1"
          },
          {
            "binary_name": "libgnutls30",
            "binary_version": "3.5.18-1ubuntu1.6+esm1"
          },
          {
            "binary_name": "libgnutlsxx28",
            "binary_version": "3.5.18-1ubuntu1.6+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "gnutls28",
        "purl": "pkg:deb/ubuntu/gnutls28@3.5.18-1ubuntu1.6+esm1?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.5.18-1ubuntu1.6+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.5.8-6ubuntu3",
        "3.5.17-1ubuntu1",
        "3.5.17-1ubuntu3",
        "3.5.18-1ubuntu1",
        "3.5.18-1ubuntu1.1",
        "3.5.18-1ubuntu1.2",
        "3.5.18-1ubuntu1.3",
        "3.5.18-1ubuntu1.4",
        "3.5.18-1ubuntu1.5",
        "3.5.18-1ubuntu1.6"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-6499-1 fixed vulnerabilities in GnuTLS. This update provides the\ncorresponding update for Ubuntu 18.04 LTS.\n\nOriginal advisory details:\n\n It was discovered that GnuTLS had a timing side-channel when handling\n certain RSA-PSK key exchanges. A remote attacker could possibly use this\n issue to recover sensitive information.\n",
  "id": "USN-6499-2",
  "modified": "2026-04-22T07:37:06Z",
  "published": "2024-01-08T11:39:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6499-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-5981"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "gnutls28 vulnerability",
  "upstream": [
    "UBUNTU-CVE-2023-5981"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.