{
  "cveId": "CVE-2020-28896",
  "url": "https://patchblox.com/security/cve/CVE-2020-28896",
  "summary": "CVE-2020-28896 is fixed in 2 products on 1 platform, first by mutt 1.9.4-3ubuntu0.4, released November 23, 2020. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "mutt: Mutt is a low resource, highly configurable, text-based MIME e-mail client",
  "description": "Mutt is a low resource, highly configurable, text-based MIME e-mail client. Mutt supports most e-mail storing formats, such as mbox and Maildir, as well as most protocols, including POP3 and IMAP.\n\nThe following packages have been upgraded to a later upstream version: mutt (2.0.7). (BZ#1912614)\n\nSecurity Fix(es):\n\n* mutt: Incorrect handling of invalid initial IMAP responses could lead to an authentication attempt over unencrypted connection (CVE-2020-28896)\n\n* mutt: Memory leak when parsing rfc822 group addresses (CVE-2021-3181)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section.",
  "published": "2020-11-23T11:15:00Z",
  "severity": "Moderate",
  "cvss": 6.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
  "epss": 0.02351,
  "epssPercentile": 0.83804,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "mutt",
      "release": "RHEL 8",
      "fixedVersion": "5:2.0.7-1.el8",
      "fix": "RHSA-2021:4181",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-4181",
      "released": "2021-11-09T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "mutt",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.9.4-3ubuntu0.4",
      "fix": "mutt 1.9.4-3ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-mutt-1.9.4-3ubuntu0.4",
      "released": "2020-11-23T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "mutt",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.13.2-1ubuntu0.3",
      "fix": "mutt 1.13.2-1ubuntu0.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-mutt-1.13.2-1ubuntu0.3",
      "released": "2020-11-23T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "mutt",
      "release": "almalinux 8",
      "fixedVersion": "5:2.0.7-1.el8",
      "fix": "ALSA-2021:4181",
      "url": "https://patchblox.com/security/fix/linux/alsa-2021-4181",
      "released": "2021-11-09T08:33:45Z"
    },
    {
      "platform": "linux",
      "product": "mutt",
      "release": "ol 8",
      "fixedVersion": "5:2.0.7-1.el8",
      "fix": "ELSA-2021-4181",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-4181",
      "released": "2021-11-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "mutt",
      "release": "rocky 8",
      "fixedVersion": "5:2.0.7-1.el8",
      "fix": "RLSA-2021:4181",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2021-4181",
      "released": "2021-11-09T08:33:45Z"
    },
    {
      "platform": "linux",
      "product": "neomutt",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "20171215\u002Bdfsg.1-1ubuntu0.1~esm1",
      "fix": "neomutt 20171215\u002Bdfsg.1-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-neomutt-20171215-dfsg.1-1ubuntu0.1-esm1",
      "released": "2022-04-14T14:15:00Z"
    },
    {
      "platform": "linux",
      "product": "neomutt",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "20191207\u002Bdfsg.1-1.1ubuntu0.1~esm1",
      "fix": "neomutt 20191207\u002Bdfsg.1-1.1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-neomutt-20191207-dfsg.1-1.1ubuntu0.1-esm1",
      "released": "2024-11-11T19:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}