Vulnerability-Lookup

ubuntu-cve-2017-16944

Vulnerability from osv_ubuntu

Published

2017-11-27 00:00

Modified

2025-07-16 04:53

Summary

Details

The receive_msg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to cause a denial of service (infinite loop and stack exhaustion) via vectors involving BDAT commands and an improper check for a '.' character signifying the end of the content, related to the bdat_getc function.

Severity

7.5 (High)


                    
                      CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2017-16944	REPORT
	https://ubuntu.com/security/notices/USN-3499-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2017-16944	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "exim4",
            "binary_version": "4.82-3ubuntu2.3"
          },
          {
            "binary_name": "exim4-base",
            "binary_version": "4.82-3ubuntu2.3"
          },
          {
            "binary_name": "exim4-base-dbgsym",
            "binary_version": "4.82-3ubuntu2.3"
          },
          {
            "binary_name": "exim4-config",
            "binary_version": "4.82-3ubuntu2.3"
          },
          {
            "binary_name": "exim4-daemon-heavy",
            "binary_version": "4.82-3ubuntu2.3"
          },
          {
            "binary_name": "exim4-daemon-heavy-dbg",
            "binary_version": "4.82-3ubuntu2.3"
          },
          {
            "binary_name": "exim4-daemon-heavy-dbgsym",
            "binary_version": "4.82-3ubuntu2.3"
          },
          {
            "binary_name": "exim4-daemon-light",
            "binary_version": "4.82-3ubuntu2.3"
          },
          {
            "binary_name": "exim4-daemon-light-dbg",
            "binary_version": "4.82-3ubuntu2.3"
          },
          {
            "binary_name": "exim4-daemon-light-dbgsym",
            "binary_version": "4.82-3ubuntu2.3"
          },
          {
            "binary_name": "exim4-dbg",
            "binary_version": "4.82-3ubuntu2.3"
          },
          {
            "binary_name": "exim4-dev",
            "binary_version": "4.82-3ubuntu2.3"
          },
          {
            "binary_name": "eximon4",
            "binary_version": "4.82-3ubuntu2.3"
          },
          {
            "binary_name": "eximon4-dbgsym",
            "binary_version": "4.82-3ubuntu2.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "exim4",
        "purl": "pkg:deb/ubuntu/exim4@4.82-3ubuntu2.3?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.82-3ubuntu2.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.80-7ubuntu3",
        "4.80-7ubuntu4",
        "4.80-9ubuntu1",
        "4.80-9ubuntu2",
        "4.82-3ubuntu1",
        "4.82-3ubuntu2",
        "4.82-3ubuntu2.1",
        "4.82-3ubuntu2.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "exim4",
            "binary_version": "4.86.2-2ubuntu2.2"
          },
          {
            "binary_name": "exim4-base",
            "binary_version": "4.86.2-2ubuntu2.2"
          },
          {
            "binary_name": "exim4-base-dbgsym",
            "binary_version": "4.86.2-2ubuntu2.2"
          },
          {
            "binary_name": "exim4-config",
            "binary_version": "4.86.2-2ubuntu2.2"
          },
          {
            "binary_name": "exim4-daemon-heavy",
            "binary_version": "4.86.2-2ubuntu2.2"
          },
          {
            "binary_name": "exim4-daemon-heavy-dbg",
            "binary_version": "4.86.2-2ubuntu2.2"
          },
          {
            "binary_name": "exim4-daemon-heavy-dbgsym",
            "binary_version": "4.86.2-2ubuntu2.2"
          },
          {
            "binary_name": "exim4-daemon-light",
            "binary_version": "4.86.2-2ubuntu2.2"
          },
          {
            "binary_name": "exim4-daemon-light-dbg",
            "binary_version": "4.86.2-2ubuntu2.2"
          },
          {
            "binary_name": "exim4-daemon-light-dbgsym",
            "binary_version": "4.86.2-2ubuntu2.2"
          },
          {
            "binary_name": "exim4-dbg",
            "binary_version": "4.86.2-2ubuntu2.2"
          },
          {
            "binary_name": "exim4-dev",
            "binary_version": "4.86.2-2ubuntu2.2"
          },
          {
            "binary_name": "eximon4",
            "binary_version": "4.86.2-2ubuntu2.2"
          },
          {
            "binary_name": "eximon4-dbgsym",
            "binary_version": "4.86.2-2ubuntu2.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "exim4",
        "purl": "pkg:deb/ubuntu/exim4@4.86.2-2ubuntu2.2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.86.2-2ubuntu2.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.86-3ubuntu1",
        "4.86-7ubuntu1",
        "4.86-7ubuntu2",
        "4.86-7ubuntu3",
        "4.86.2-2ubuntu1",
        "4.86.2-2ubuntu2",
        "4.86.2-2ubuntu2.1"
      ]
    }
  ],
  "aliases": [],
  "details": "The receive_msg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to cause a denial of service (infinite loop and stack exhaustion) via vectors involving BDAT commands and an improper check for a \u0027.\u0027 character signifying the end of the content, related to the bdat_getc function.",
  "id": "UBUNTU-CVE-2017-16944",
  "modified": "2025-07-16T04:53:09Z",
  "published": "2017-11-27T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2017-16944"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3499-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2017-16944"
    }
  ],
  "related": [
    "USN-3499-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2017-16944"
  ],
  "withdrawn": "2025-07-18T16:44:15Z"
}

CVE-2017-16944 (GCVE-0-2017-16944)

Vulnerability from cvelistv5 – Published: 2017-11-25 17:00 – Updated: 2024-08-05 20:43

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

9 references

URL	Tags
https://lists.exim.org/lurker/message/20171125.03…	x_refsource_MISC
http://openwall.com/lists/oss-security/2017/11/25/3	x_refsource_MISC
https://bugs.exim.org/show_bug.cgi?id=2201	x_refsource_MISC
http://openwall.com/lists/oss-security/2017/11/25/1	x_refsource_MISC
http://www.securitytracker.com/id/1039873	vdb-entryx_refsource_SECTRACK
http://openwall.com/lists/oss-security/2017/11/25/2	x_refsource_MISC
https://www.debian.org/security/2017/dsa-4053	vendor-advisoryx_refsource_DEBIAN
https://www.exploit-db.com/exploits/43184/	exploitx_refsource_EXPLOIT-DB
http://www.openwall.com/lists/oss-security/2021/05/04/7	mailing-listx_refsource_MLIST

Date Public

2017-11-25 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T20:43:57.859Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://openwall.com/lists/oss-security/2017/11/25/3"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugs.exim.org/show_bug.cgi?id=2201"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://openwall.com/lists/oss-security/2017/11/25/1"
          },
          {
            "name": "1039873",
            "tags": [
              "vdb-entry",
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            "url": "http://www.securitytracker.com/id/1039873"
          },
          {
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              "x_transferred"
            ],
            "url": "http://openwall.com/lists/oss-security/2017/11/25/2"
          },
          {
            "name": "DSA-4053",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2017/dsa-4053"
          },
          {
            "name": "43184",
            "tags": [
              "exploit",
              "x_refsource_EXPLOIT-DB",
              "x_transferred"
            ],
            "url": "https://www.exploit-db.com/exploits/43184/"
          },
          {
            "name": "[oss-security] 20210504 21Nails: Multiple vulnerabilities in Exim",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
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          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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              "version": "n/a"
            }
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        }
      ],
      "datePublic": "2017-11-25T00:00:00.000Z",
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        }
      ],
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      "providerMetadata": {
        "dateUpdated": "2021-05-04T17:06:41.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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      "references": [
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          "url": "https://bugs.exim.org/show_bug.cgi?id=2201"
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            "x_refsource_MISC"
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          "url": "http://openwall.com/lists/oss-security/2017/11/25/1"
        },
        {
          "name": "1039873",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1039873"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://openwall.com/lists/oss-security/2017/11/25/2"
        },
        {
          "name": "DSA-4053",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2017/dsa-4053"
        },
        {
          "name": "43184",
          "tags": [
            "exploit",
            "x_refsource_EXPLOIT-DB"
          ],
          "url": "https://www.exploit-db.com/exploits/43184/"
        },
        {
          "name": "[oss-security] 20210504 21Nails: Multiple vulnerabilities in Exim",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/05/04/7"
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          "ID": "CVE-2017-16944",
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            "vendor_data": [
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              "value": "The receive_msg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to cause a denial of service (infinite loop and stack exhaustion) via vectors involving BDAT commands and an improper check for a \u0027.\u0027 character signifying the end of the content, related to the bdat_getc function."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
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        "references": {
          "reference_data": [
            {
              "name": "https://lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.html",
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            },
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            },
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              "url": "http://www.securitytracker.com/id/1039873"
            },
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              "refsource": "MISC",
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  "cveMetadata": {
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    "assignerShortName": "mitre",
    "cveId": "CVE-2017-16944",
    "datePublished": "2017-11-25T17:00:00.000Z",
    "dateReserved": "2017-11-25T00:00:00.000Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

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.

Action not permitted

ubuntu-cve-2017-16944

Vulnerability from osv_ubuntu

CVE-2017-16944 (GCVE-0-2017-16944)

Tags

Sightings

Nomenclature