ubuntu-cve-2020-14929
Vulnerability from osv_ubuntu
Published
2020-06-19 19:15
Modified
2025-09-08 16:46
Summary
Details

Alpine before 2.23 silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH, which is a less secure behavior than the alternative of closing the connection and letting the user decide what they would like to do.

Severity
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: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "alpine",
            "binary_version": "2.20+dfsg1-2ubuntu0.1~esm1"
          },
          {
            "binary_name": "alpine-pico",
            "binary_version": "2.20+dfsg1-2ubuntu0.1~esm1"
          },
          {
            "binary_name": "pilot",
            "binary_version": "2.20+dfsg1-2ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "alpine",
        "purl": "pkg:deb/ubuntu/alpine@2.20+dfsg1-2ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.20+dfsg1-2ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.20+dfsg1-1",
        "2.20+dfsg1-2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "alpine",
            "binary_version": "2.21+dfsg1-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "alpine-pico",
            "binary_version": "2.21+dfsg1-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "pilot",
            "binary_version": "2.21+dfsg1-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "alpine",
        "purl": "pkg:deb/ubuntu/alpine@2.21+dfsg1-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.21+dfsg1-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.20+dfsg1-7",
        "2.21+dfsg1-1",
        "2.21+dfsg1-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "alpine",
            "binary_version": "2.22+dfsg1-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "alpine-pico",
            "binary_version": "2.22+dfsg1-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "pilot",
            "binary_version": "2.22+dfsg1-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "alpine",
        "purl": "pkg:deb/ubuntu/alpine@2.22+dfsg1-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.22+dfsg1-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.21+dfsg1-1.1build1",
        "2.22+dfsg1-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Alpine before 2.23 silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH, which is a less secure behavior than the alternative of closing the connection and letting the user decide what they would like to do.",
  "id": "UBUNTU-CVE-2020-14929",
  "modified": "2025-09-08T16:46:13Z",
  "published": "2020-06-19T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-14929"
    },
    {
      "type": "REPORT",
      "url": "http://mailman13.u.washington.edu/pipermail/alpine-info/2020-June/008989.html"
    },
    {
      "type": "REPORT",
      "url": "https://repo.or.cz/alpine.git/commitdiff/000edd9036b6aea5e6a06900ecd6c58faec665ab"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-14929"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7360-1"
    }
  ],
  "related": [
    "USN-7360-1"
  ],
  "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": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-14929"
  ]
}



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