ubuntu-cve-2023-50782
Vulnerability from osv_ubuntu
Published
2024-02-05 21:15
Modified
2025-09-08 16:56
Summary
Details

A flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python-cryptography",
            "binary_version": "1.2.3-1ubuntu0.3+esm1"
          },
          {
            "binary_name": "python3-cryptography",
            "binary_version": "1.2.3-1ubuntu0.3+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "python-cryptography",
        "purl": "pkg:deb/ubuntu/python-cryptography@1.2.3-1ubuntu0.3+esm1?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.3-1ubuntu0.3+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.1-1ubuntu1",
        "1.0.2-1",
        "1.1-1",
        "1.1.1-1",
        "1.1.1-1ubuntu1",
        "1.1.1-1ubuntu2",
        "1.1.1-1ubuntu3",
        "1.2.2-2",
        "1.2.3-1",
        "1.2.3-1ubuntu0.1",
        "1.2.3-1ubuntu0.2",
        "1.2.3-1ubuntu0.3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python-cryptography",
            "binary_version": "2.1.4-1ubuntu1.4+esm1"
          },
          {
            "binary_name": "python3-cryptography",
            "binary_version": "2.1.4-1ubuntu1.4+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "python-cryptography",
        "purl": "pkg:deb/ubuntu/python-cryptography@2.1.4-1ubuntu1.4+esm1?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1.4-1ubuntu1.4+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.9-1",
        "2.1.3-3",
        "2.1.4-1",
        "2.1.4-1build1",
        "2.1.4-1build2",
        "2.1.4-1ubuntu1",
        "2.1.4-1ubuntu1.1",
        "2.1.4-1ubuntu1.2",
        "2.1.4-1ubuntu1.3",
        "2.1.4-1ubuntu1.4"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python-cryptography",
            "binary_version": "2.8-3ubuntu0.3"
          },
          {
            "binary_name": "python3-cryptography",
            "binary_version": "2.8-3ubuntu0.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "python-cryptography",
        "purl": "pkg:deb/ubuntu/python-cryptography@2.8-3ubuntu0.3?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.8-3ubuntu0.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.6.1-3.1",
        "2.6.1-4",
        "2.6.1-4ubuntu1",
        "2.8-1ubuntu2",
        "2.8-2",
        "2.8-3",
        "2.8-3ubuntu0.1",
        "2.8-3ubuntu0.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python3-cryptography",
            "binary_version": "3.4.8-1ubuntu2.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "python-cryptography",
        "purl": "pkg:deb/ubuntu/python-cryptography@3.4.8-1ubuntu2.2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.4.8-1ubuntu2.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.3.2-1",
        "3.3.2-1build1",
        "3.4.8-1",
        "3.4.8-1ubuntu1",
        "3.4.8-1ubuntu2",
        "3.4.8-1ubuntu2.1"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.",
  "id": "UBUNTU-CVE-2023-50782",
  "modified": "2025-09-08T16:56:36Z",
  "published": "2024-02-05T21:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-50782"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/pyca/cryptography/issues/9785"
    },
    {
      "type": "REPORT",
      "url": "https://people.redhat.com/~hkario/marvin/"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/openssl/openssl/pull/13817"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6663-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6673-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6673-2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-50782"
    }
  ],
  "related": [
    "USN-6663-1",
    "USN-6673-1",
    "USN-6673-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-50782"
  ]
}



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