{
  "cveId": "CVE-2019-11356",
  "url": "https://patchblox.com/security/cve/CVE-2019-11356",
  "summary": "CVE-2019-11356 is fixed in 12 products on 1 platform, first by RHSA-2019:1771, released July 15, 2019. It is not reported as exploited. Patch Radar priority: High.",
  "title": "cyrus-imapd: The cyrus-imapd packages contain a high-performance mail server with IMAP, POP3, NNTP, and SIEVE support.\n\nSecurity F...",
  "description": "The cyrus-imapd packages contain a high-performance mail server with IMAP, POP3, NNTP, and SIEVE support.\n\nSecurity Fix(es):\n\n* cyrus-imapd: buffer overflow in CalDAV request handling triggered by a long iCalendar property name (CVE-2019-11356)\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.",
  "published": "2019-06-03T13:29:00Z",
  "severity": "Important",
  "cvss": 9.8,
  "epss": 0.07622,
  "epssPercentile": 0.94594,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "cyrus-admin",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.5.10-3ubuntu1.1",
      "fix": "cyrus-admin 2.5.10-3ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-cyrus-admin-2.5.10-3ubuntu1.1",
      "released": "2019-12-16T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "cyrus-caldav",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.5.10-3ubuntu1.1",
      "fix": "cyrus-caldav 2.5.10-3ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-cyrus-caldav-2.5.10-3ubuntu1.1",
      "released": "2019-12-16T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "cyrus-clients",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.5.10-3ubuntu1.1",
      "fix": "cyrus-clients 2.5.10-3ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-cyrus-clients-2.5.10-3ubuntu1.1",
      "released": "2019-12-16T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "cyrus-common",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.5.10-3ubuntu1.1",
      "fix": "cyrus-common 2.5.10-3ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-cyrus-common-2.5.10-3ubuntu1.1",
      "released": "2019-12-16T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "cyrus-imapd",
      "release": "RHEL 8",
      "fixedVersion": "0:3.0.7-15.el8_0.1",
      "fix": "RHSA-2019:1771",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2019-1771",
      "released": "2019-07-15T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "cyrus-imapd",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.5.10-3ubuntu1.1",
      "fix": "cyrus-imapd 2.5.10-3ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-cyrus-imapd-2.5.10-3ubuntu1.1",
      "released": "2019-12-16T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "cyrus-imapd",
      "release": "ol 8",
      "fixedVersion": "0:3.0.7-15.el8_0.1",
      "fix": "ELSA-2019-1771",
      "url": "https://patchblox.com/security/fix/linux/elsa-2019-1771",
      "released": "2019-07-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "cyrus-imapd-utils",
      "release": "RHEL 8",
      "fixedVersion": "0:3.0.7-15.el8_0.1",
      "fix": "RHSA-2019:1771",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2019-1771",
      "released": "2019-07-15T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "cyrus-imapd-utils",
      "release": "ol 8",
      "fixedVersion": "0:3.0.7-15.el8_0.1",
      "fix": "ELSA-2019-1771",
      "url": "https://patchblox.com/security/fix/linux/elsa-2019-1771",
      "released": "2019-07-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "cyrus-imapd-vzic",
      "release": "RHEL 8",
      "fixedVersion": "0:3.0.7-15.el8_0.1",
      "fix": "RHSA-2019:1771",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2019-1771",
      "released": "2019-07-15T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "cyrus-imapd-vzic",
      "release": "ol 8",
      "fixedVersion": "0:3.0.7-15.el8_0.1",
      "fix": "ELSA-2019-1771",
      "url": "https://patchblox.com/security/fix/linux/elsa-2019-1771",
      "released": "2019-07-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "cyrus-murder",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.5.10-3ubuntu1.1",
      "fix": "cyrus-murder 2.5.10-3ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-cyrus-murder-2.5.10-3ubuntu1.1",
      "released": "2019-12-16T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "cyrus-nntpd",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.5.10-3ubuntu1.1",
      "fix": "cyrus-nntpd 2.5.10-3ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-cyrus-nntpd-2.5.10-3ubuntu1.1",
      "released": "2019-12-16T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "cyrus-pop3d",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.5.10-3ubuntu1.1",
      "fix": "cyrus-pop3d 2.5.10-3ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-cyrus-pop3d-2.5.10-3ubuntu1.1",
      "released": "2019-12-16T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "cyrus-replication",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.5.10-3ubuntu1.1",
      "fix": "cyrus-replication 2.5.10-3ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-cyrus-replication-2.5.10-3ubuntu1.1",
      "released": "2019-12-16T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libcyrus-imap-perl",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.5.10-3ubuntu1.1",
      "fix": "libcyrus-imap-perl 2.5.10-3ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libcyrus-imap-perl-2.5.10-3ubuntu1.1",
      "released": "2019-12-16T06:15:00Z"
    }
  ],
  "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"
  }
}