ubuntu-cve-2019-11703
Vulnerability from osv_ubuntu
Published
2019-06-14 00:00
Modified
2026-04-22 07:38
Summary
Details

A flaw in Thunderbird's implementation of iCal causes a heap buffer overflow in parser_get_next_char when processing certain email messages, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7.1.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "thunderbird",
            "binary_version": "1:60.7.1+build1-0ubuntu0.16.04.1"
          },
          {
            "binary_name": "thunderbird-globalmenu",
            "binary_version": "1:60.7.1+build1-0ubuntu0.16.04.1"
          },
          {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:60.7.1+build1-0ubuntu0.16.04.1"
          },
          {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:60.7.1+build1-0ubuntu0.16.04.1"
          },
          {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:60.7.1+build1-0ubuntu0.16.04.1"
          },
          {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:60.7.1+build1-0ubuntu0.16.04.1"
          },
          {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:60.7.1+build1-0ubuntu0.16.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "thunderbird",
        "purl": "pkg:deb/ubuntu/thunderbird@1:60.7.1+build1-0ubuntu0.16.04.1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:60.7.1+build1-0ubuntu0.16.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:38.3.0+build1-0ubuntu2",
        "1:38.5.1+build2-0ubuntu1",
        "1:38.6.0+build1-0ubuntu1",
        "1:38.7.2+build1-0ubuntu0.16.04.1",
        "1:38.8.0+build1-0ubuntu0.16.04.1",
        "1:45.2.0+build1-0ubuntu0.16.04.1",
        "1:45.3.0+build1-0ubuntu0.16.04.2",
        "1:45.4.0+build1-0ubuntu0.16.04.1",
        "1:45.5.1+build1-0ubuntu0.16.04.1",
        "1:45.7.0+build1-0ubuntu0.16.04.1",
        "1:45.8.0+build1-0ubuntu0.16.04.1",
        "1:52.1.1+build1-0ubuntu0.16.04.1",
        "1:52.2.1+build1-0ubuntu0.16.04.1",
        "1:52.3.0+build1-0ubuntu0.16.04.1",
        "1:52.4.0+build1-0ubuntu0.16.04.2",
        "1:52.5.0+build1-0ubuntu0.16.04.1",
        "1:52.6.0+build1-0ubuntu0.16.04.1",
        "1:52.7.0+build1-0ubuntu0.16.04.1",
        "1:52.8.0+build1-0ubuntu0.16.04.1",
        "1:52.9.1+build3-0ubuntu0.16.04.1",
        "1:60.2.1+build1-0ubuntu0.16.04.4",
        "1:60.4.0+build2-0ubuntu0.16.04.1",
        "1:60.5.1+build2-0ubuntu0.16.04.1",
        "1:60.6.1+build2-0ubuntu0.16.04.1",
        "1:60.7.0+build1-0ubuntu0.16.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "thunderbird",
            "binary_version": "1:60.7.1+build1-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "thunderbird-globalmenu",
            "binary_version": "1:60.7.1+build1-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:60.7.1+build1-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:60.7.1+build1-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:60.7.1+build1-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:60.7.1+build1-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:60.7.1+build1-0ubuntu0.18.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "thunderbird",
        "purl": "pkg:deb/ubuntu/thunderbird@1:60.7.1+build1-0ubuntu0.18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:60.7.1+build1-0ubuntu0.18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:52.4.0+build1-0ubuntu2",
        "1:52.6.0+build1-0ubuntu1",
        "1:52.7.0+build1-0ubuntu1",
        "1:52.8.0+build1-0ubuntu0.18.04.1",
        "1:52.9.1+build3-0ubuntu0.18.04.1",
        "1:60.2.1+build1-0ubuntu0.18.04.2",
        "1:60.4.0+build2-0ubuntu0.18.04.1",
        "1:60.5.1+build2-0ubuntu0.18.04.1",
        "1:60.6.1+build2-0ubuntu0.18.04.1",
        "1:60.7.0+build1-0ubuntu0.18.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw in Thunderbird\u0027s implementation of iCal causes a heap buffer overflow in parser_get_next_char when processing certain email messages, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird \u003c 60.7.1.",
  "id": "UBUNTU-CVE-2019-11703",
  "modified": "2026-04-22T07:38:58Z",
  "published": "2019-06-14T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-11703"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2019/06/13/2"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1553820"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2019-17/#CVE-2019-11703"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4028-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-11703"
    }
  ],
  "related": [
    "USN-4028-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-11703"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.