ubuntu-cve-2020-14954
Vulnerability from osv_ubuntu
Published
2020-06-21 17:15
Modified
2025-09-08 16:46
Summary
Details

Mutt before 1.14.4 and NeoMutt before 2020-06-19 have a STARTTLS buffering issue that affects IMAP, SMTP, and POP3. When a server sends a "begin TLS" response, the client reads additional data (e.g., from a man-in-the-middle attacker) and evaluates it in a TLS context, aka "response injection."

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

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "mutt",
            "binary_version": "1.5.24-1ubuntu0.4"
          },
          {
            "binary_name": "mutt-patched",
            "binary_version": "1.5.24-1ubuntu0.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "mutt",
        "purl": "pkg:deb/ubuntu/mutt@1.5.24-1ubuntu0.4?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.5.24-1ubuntu0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.23-3.1ubuntu1",
        "1.5.23-3.1ubuntu2",
        "1.5.24-1",
        "1.5.24-1build1",
        "1.5.24-1ubuntu0.1",
        "1.5.24-1ubuntu0.2",
        "1.5.24-1ubuntu0.3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "mutt",
            "binary_version": "1.9.4-3ubuntu0.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "mutt",
        "purl": "pkg:deb/ubuntu/mutt@1.9.4-3ubuntu0.3?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.9.4-3ubuntu0.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.8.3+neomutt20170609-2build1",
        "1.9.1-2",
        "1.9.1-3",
        "1.9.1-4",
        "1.9.1-5",
        "1.9.2-1",
        "1.9.3-1",
        "1.9.4-2",
        "1.9.4-3",
        "1.9.4-3ubuntu0.1",
        "1.9.4-3ubuntu0.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "neomutt",
            "binary_version": "20171215+dfsg.1-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "neomutt",
        "purl": "pkg:deb/ubuntu/neomutt@20171215+dfsg.1-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "20171215+dfsg.1-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "20171027-1",
        "20171027-2",
        "20171027+dfsg.1-1",
        "20171027+dfsg.1-2",
        "20171027+dfsg.1-4",
        "20171208+dfsg.1-1",
        "20171208+dfsg.1-2",
        "20171215+dfsg.1-1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "mutt",
            "binary_version": "1.13.2-1ubuntu0.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "mutt",
        "purl": "pkg:deb/ubuntu/mutt@1.13.2-1ubuntu0.2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.13.2-1ubuntu0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.10.1-2.1",
        "1.12.2-1",
        "1.12.2-2",
        "1.13.0-1",
        "1.13.2-1",
        "1.13.2-1ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "neomutt",
            "binary_version": "20191207+dfsg.1-1.1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "neomutt",
        "purl": "pkg:deb/ubuntu/neomutt@20191207+dfsg.1-1.1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "20191207+dfsg.1-1.1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "20180716+dfsg.1-1.2",
        "20191111+dfsg.1-1",
        "20191207+dfsg.1-1.1"
      ]
    }
  ],
  "aliases": [],
  "details": "Mutt before 1.14.4 and NeoMutt before 2020-06-19 have a STARTTLS buffering issue that affects IMAP, SMTP, and POP3. When a server sends a \"begin TLS\" response, the client reads additional data (e.g., from a man-in-the-middle attacker) and evaluates it in a TLS context, aka \"response injection.\"",
  "id": "UBUNTU-CVE-2020-14954",
  "modified": "2025-09-08T16:46:13Z",
  "published": "2020-06-21T17:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-14954"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.com/muttmua/mutt/-/issues/248"
    },
    {
      "type": "REPORT",
      "url": "http://lists.mutt.org/pipermail/mutt-announce/Week-of-Mon-20200615/000023.html"
    },
    {
      "type": "REPORT",
      "url": "http://www.mutt.org/"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/neomutt/neomutt/releases/tag/20200619"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4403-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-14954"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7204-1"
    }
  ],
  "related": [
    "USN-4403-1",
    "USN-7204-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-14954"
  ]
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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