Vulnerability-Lookup

ubuntu-cve-2019-16779

Vulnerability from osv_ubuntu

Published

2019-12-16 20:15

Modified

2025-10-24 04:47

Summary

Details

In RubyGem excon before 0.71.0, there was a race condition around persistent connections, where a connection which is interrupted (such as by a timeout) would leave data on the socket. Subsequent requests would then read this data, returning content from the previous response. The race condition window appears to be short, and it would be difficult to purposefully exploit this.

Severity

5.8 (Medium)


                    
                      CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N

5.9 (Medium)


                    
                      CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2019-16779	REPORT
	https://github.com/excon/excon/security/advisorie…	REPORT
	https://github.com/excon/excon/commit/ccb57d7a422…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2019-16779	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ruby-excon",
            "binary_version": "0.45.1-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "ruby-excon",
        "purl": "pkg:deb/ubuntu/ruby-excon@0.45.1-2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.45.1-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ruby-excon",
            "binary_version": "0.60.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "ruby-excon",
        "purl": "pkg:deb/ubuntu/ruby-excon@0.60.0-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.54.0-1",
        "0.60.0-1"
      ]
    }
  ],
  "aliases": [],
  "details": "In RubyGem excon before 0.71.0, there was a race condition around persistent connections, where a connection which is interrupted (such as by a timeout) would leave data on the socket. Subsequent requests would then read this data, returning content from the previous response. The race condition window appears to be short, and it would be difficult to purposefully exploit this.",
  "id": "UBUNTU-CVE-2019-16779",
  "modified": "2025-10-24T04:47:53Z",
  "published": "2019-12-16T20:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-16779"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/excon/excon/security/advisories/GHSA-q58g-455p-8vw9"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/excon/excon/commit/ccb57d7a422f020dc74f1de4e8fb505ab46d8a29"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-16779"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-16779"
  ]
}

CVE-2019-16779 (GCVE-0-2019-16779)

Vulnerability from cvelistv5 – Published: 2019-12-16 19:35 – Updated: 2024-08-05 01:24

Title

In RubyGem excon, interrupted Persistent Connections May Leak Response Data

Summary

Severity

5.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N

CWE

CWE-664 - Improper Control of a Resource Through its Lifetime

Assigner

GitHub_M

References

5 references

URL	Tags
https://github.com/excon/excon/security/advisorie…	x_refsource_CONFIRM
https://github.com/excon/excon/commit/ccb57d7a422…	x_refsource_MISC
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

Impacted products

1 product

Vendor	Product	Version
excon	excon	Affected: < 0.71.0 , < 0.71.0 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T01:24:48.572Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/excon/excon/security/advisories/GHSA-q58g-455p-8vw9"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/excon/excon/commit/ccb57d7a422f020dc74f1de4e8fb505ab46d8a29"
          },
          {
            "name": "openSUSE-SU-2020:0036",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00021.html"
          },
          {
            "name": "[debian-lts-announce] 20200119 [SECURITY] [DLA 2070-1] ruby-excon security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2020/01/msg00015.html"
          },
          {
            "name": "openSUSE-SU-2020:0139",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00062.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "excon",
          "vendor": "excon",
          "versions": [
            {
              "lessThan": "0.71.0",
              "status": "affected",
              "version": "\u003c 0.71.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In RubyGem excon before 0.71.0, there was a race condition around persistent connections, where a connection which is interrupted (such as by a timeout) would leave data on the socket. Subsequent requests would then read this data, returning content from the previous response. The race condition window appears to be short, and it would be difficult to purposefully exploit this."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-664",
              "description": "CWE-664 Improper Control of a Resource Through its Lifetime",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-01-29T21:06:17.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/excon/excon/security/advisories/GHSA-q58g-455p-8vw9"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/excon/excon/commit/ccb57d7a422f020dc74f1de4e8fb505ab46d8a29"
        },
        {
          "name": "openSUSE-SU-2020:0036",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00021.html"
        },
        {
          "name": "[debian-lts-announce] 20200119 [SECURITY] [DLA 2070-1] ruby-excon security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/01/msg00015.html"
        },
        {
          "name": "openSUSE-SU-2020:0139",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00062.html"
        }
      ],
      "source": {
        "advisory": "GHSA-q58g-455p-8vw9",
        "discovery": "UNKNOWN"
      },
      "title": "In RubyGem excon, interrupted Persistent Connections May Leak Response Data",
      "workarounds": [
        {
          "lang": "en",
          "value": "Users can workaround the problem by disabling persistent connections, though this may cause performance implications."
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2019-16779",
          "STATE": "PUBLIC",
          "TITLE": "In RubyGem excon, interrupted Persistent Connections May Leak Response Data"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "excon",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_name": "\u003c 0.71.0",
                            "version_value": "0.71.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "excon"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In RubyGem excon before 0.71.0, there was a race condition around persistent connections, where a connection which is interrupted (such as by a timeout) would leave data on the socket. Subsequent requests would then read this data, returning content from the previous response. The race condition window appears to be short, and it would be difficult to purposefully exploit this."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N",
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        "problemtype": {
          "problemtype_data": [
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              "description": [
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                  "lang": "eng",
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/excon/excon/security/advisories/GHSA-q58g-455p-8vw9",
              "refsource": "CONFIRM",
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            },
            {
              "name": "https://github.com/excon/excon/commit/ccb57d7a422f020dc74f1de4e8fb505ab46d8a29",
              "refsource": "MISC",
              "url": "https://github.com/excon/excon/commit/ccb57d7a422f020dc74f1de4e8fb505ab46d8a29"
            },
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              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00021.html"
            },
            {
              "name": "[debian-lts-announce] 20200119 [SECURITY] [DLA 2070-1] ruby-excon security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2020/01/msg00015.html"
            },
            {
              "name": "openSUSE-SU-2020:0139",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00062.html"
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          {
            "lang": "en",
            "value": "Users can workaround the problem by disabling persistent connections, though this may cause performance implications."
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  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2019-16779",
    "datePublished": "2019-12-16T19:35:13.000Z",
    "dateReserved": "2019-09-24T00:00:00.000Z",
    "dateUpdated": "2024-08-05T01:24:48.572Z",
    "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-2019-16779

Vulnerability from osv_ubuntu

CVE-2019-16779 (GCVE-0-2019-16779)

Tags

Sightings

Nomenclature