ubuntu-cve-2021-4184
Vulnerability from osv_ubuntu
Published
2021-12-30 22:15
Modified
2025-07-16 04:56
Summary
Details
Infinite loop in the BitTorrent DHT dissector in Wireshark 3.6.0 and 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file
Severity
7.5 (High)
7.5 (High)
N/A (UNKNOWN)
{
"affected": [
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libwireshark-data",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "libwireshark-dev",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "libwireshark11",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "libwireshark11-dbgsym",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "libwiretap-dev",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "libwiretap8",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "libwiretap8-dbgsym",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "libwscodecs2",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "libwscodecs2-dbgsym",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "libwsutil-dev",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "libwsutil9",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "libwsutil9-dbgsym",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "tshark",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "tshark-dbgsym",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "wireshark",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "wireshark-common",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "wireshark-common-dbgsym",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "wireshark-dev",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "wireshark-doc",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "wireshark-gtk",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "wireshark-gtk-dbgsym",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "wireshark-qt",
"binary_version": "2.6.10-1~ubuntu18.04.0"
},
{
"binary_name": "wireshark-qt-dbgsym",
"binary_version": "2.6.10-1~ubuntu18.04.0"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "wireshark",
"purl": "pkg:deb/ubuntu/wireshark@2.6.10-1~ubuntu18.04.0?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.6.10-1~ubuntu18.04.0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.4.2-1",
"2.4.3-1",
"2.4.4-1",
"2.4.5-1",
"2.6.3-1~ubuntu18.04.1",
"2.6.4-2~ubuntu18.04.0",
"2.6.5-1~ubuntu18.04.0",
"2.6.6-1~ubuntu18.04.0",
"2.6.8-1~ubuntu18.04.0"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libwireshark-data",
"binary_version": "3.2.3-1"
},
{
"binary_name": "libwireshark-dev",
"binary_version": "3.2.3-1"
},
{
"binary_name": "libwireshark13",
"binary_version": "3.2.3-1"
},
{
"binary_name": "libwireshark13-dbgsym",
"binary_version": "3.2.3-1"
},
{
"binary_name": "libwiretap-dev",
"binary_version": "3.2.3-1"
},
{
"binary_name": "libwiretap10",
"binary_version": "3.2.3-1"
},
{
"binary_name": "libwiretap10-dbgsym",
"binary_version": "3.2.3-1"
},
{
"binary_name": "libwsutil-dev",
"binary_version": "3.2.3-1"
},
{
"binary_name": "libwsutil11",
"binary_version": "3.2.3-1"
},
{
"binary_name": "libwsutil11-dbgsym",
"binary_version": "3.2.3-1"
},
{
"binary_name": "tshark",
"binary_version": "3.2.3-1"
},
{
"binary_name": "tshark-dbgsym",
"binary_version": "3.2.3-1"
},
{
"binary_name": "wireshark",
"binary_version": "3.2.3-1"
},
{
"binary_name": "wireshark-common",
"binary_version": "3.2.3-1"
},
{
"binary_name": "wireshark-common-dbgsym",
"binary_version": "3.2.3-1"
},
{
"binary_name": "wireshark-dev",
"binary_version": "3.2.3-1"
},
{
"binary_name": "wireshark-doc",
"binary_version": "3.2.3-1"
},
{
"binary_name": "wireshark-gtk",
"binary_version": "3.2.3-1"
},
{
"binary_name": "wireshark-qt",
"binary_version": "3.2.3-1"
},
{
"binary_name": "wireshark-qt-dbgsym",
"binary_version": "3.2.3-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "wireshark",
"purl": "pkg:deb/ubuntu/wireshark@3.2.3-1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.2.3-1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.0.5-1",
"3.0.7-1",
"3.2.1-1",
"3.2.2-1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libwireshark-data",
"binary_version": "3.6.2-2"
},
{
"binary_name": "libwireshark-dev",
"binary_version": "3.6.2-2"
},
{
"binary_name": "libwireshark15",
"binary_version": "3.6.2-2"
},
{
"binary_name": "libwireshark15-dbgsym",
"binary_version": "3.6.2-2"
},
{
"binary_name": "libwiretap-dev",
"binary_version": "3.6.2-2"
},
{
"binary_name": "libwiretap12",
"binary_version": "3.6.2-2"
},
{
"binary_name": "libwiretap12-dbgsym",
"binary_version": "3.6.2-2"
},
{
"binary_name": "libwsutil-dev",
"binary_version": "3.6.2-2"
},
{
"binary_name": "libwsutil13",
"binary_version": "3.6.2-2"
},
{
"binary_name": "libwsutil13-dbgsym",
"binary_version": "3.6.2-2"
},
{
"binary_name": "tshark",
"binary_version": "3.6.2-2"
},
{
"binary_name": "tshark-dbgsym",
"binary_version": "3.6.2-2"
},
{
"binary_name": "wireshark",
"binary_version": "3.6.2-2"
},
{
"binary_name": "wireshark-common",
"binary_version": "3.6.2-2"
},
{
"binary_name": "wireshark-common-dbgsym",
"binary_version": "3.6.2-2"
},
{
"binary_name": "wireshark-dev",
"binary_version": "3.6.2-2"
},
{
"binary_name": "wireshark-doc",
"binary_version": "3.6.2-2"
},
{
"binary_name": "wireshark-gtk",
"binary_version": "3.6.2-2"
},
{
"binary_name": "wireshark-qt",
"binary_version": "3.6.2-2"
},
{
"binary_name": "wireshark-qt-dbgsym",
"binary_version": "3.6.2-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "wireshark",
"purl": "pkg:deb/ubuntu/wireshark@3.6.2-2?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.6.2-2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.4.7-1~exp1",
"3.4.9-1",
"3.6.2-1ubuntu1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libwireshark-data",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "libwireshark-dev",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "libwireshark17t64",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "libwireshark17t64-dbgsym",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "libwiretap-dev",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "libwiretap14t64",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "libwiretap14t64-dbgsym",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "libwsutil-dev",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "libwsutil15t64",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "libwsutil15t64-dbgsym",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "tshark",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "tshark-dbgsym",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "wireshark",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "wireshark-common",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "wireshark-common-dbgsym",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "wireshark-dbgsym",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "wireshark-dev",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "wireshark-dev-dbgsym",
"binary_version": "4.2.2-1.1build3"
},
{
"binary_name": "wireshark-doc",
"binary_version": "4.2.2-1.1build3"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "wireshark",
"purl": "pkg:deb/ubuntu/wireshark@4.2.2-1.1build3?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.2.2-1.1build3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.0.8-1",
"4.0.10-1",
"4.0.11-1",
"4.2.0-1",
"4.2.2-1",
"4.2.2-1.1build1",
"4.2.2-1.1build2"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libwireshark-data",
"binary_version": "4.4.5-1"
},
{
"binary_name": "libwireshark-dev",
"binary_version": "4.4.5-1"
},
{
"binary_name": "libwireshark18",
"binary_version": "4.4.5-1"
},
{
"binary_name": "libwireshark18-dbgsym",
"binary_version": "4.4.5-1"
},
{
"binary_name": "libwiretap-dev",
"binary_version": "4.4.5-1"
},
{
"binary_name": "libwiretap15",
"binary_version": "4.4.5-1"
},
{
"binary_name": "libwiretap15-dbgsym",
"binary_version": "4.4.5-1"
},
{
"binary_name": "libwsutil-dev",
"binary_version": "4.4.5-1"
},
{
"binary_name": "libwsutil16",
"binary_version": "4.4.5-1"
},
{
"binary_name": "libwsutil16-dbgsym",
"binary_version": "4.4.5-1"
},
{
"binary_name": "tshark",
"binary_version": "4.4.5-1"
},
{
"binary_name": "tshark-dbgsym",
"binary_version": "4.4.5-1"
},
{
"binary_name": "wireshark",
"binary_version": "4.4.5-1"
},
{
"binary_name": "wireshark-common",
"binary_version": "4.4.5-1"
},
{
"binary_name": "wireshark-common-dbgsym",
"binary_version": "4.4.5-1"
},
{
"binary_name": "wireshark-dbgsym",
"binary_version": "4.4.5-1"
},
{
"binary_name": "wireshark-dev",
"binary_version": "4.4.5-1"
},
{
"binary_name": "wireshark-dev-dbgsym",
"binary_version": "4.4.5-1"
},
{
"binary_name": "wireshark-doc",
"binary_version": "4.4.5-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.04",
"name": "wireshark",
"purl": "pkg:deb/ubuntu/wireshark@4.4.5-1?arch=source\u0026distro=plucky"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.4.5-1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.2.6-1",
"4.4.1-1",
"4.4.2-1",
"4.4.3-1",
"4.4.4-1"
]
}
],
"aliases": [],
"details": "Infinite loop in the BitTorrent DHT dissector in Wireshark 3.6.0 and 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file",
"id": "UBUNTU-CVE-2021-4184",
"modified": "2025-07-16T04:56:52Z",
"published": "2021-12-30T22:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-4184"
},
{
"type": "REPORT",
"url": "https://www.wireshark.org/security/wnpa-sec-2021-18.html"
},
{
"type": "REPORT",
"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4184.json"
},
{
"type": "REPORT",
"url": "https://gitlab.com/wireshark/wireshark/-/issues/17754"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-4184"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/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-2021-4184"
],
"withdrawn": "2025-07-18T16:46:34Z"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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
| 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.
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