HighFix available
wireshark — security advisory
In Wireshark 3.2.0 to 3.2.2, 3.0.0 to 3.0.9, and 2.6.0 to 2.6.15, the BACapp dissector could crash. This was addressed in epan/dissectors/packet-bacapp.c by limiting the amount of recursion.
- Products
- wireshark
- Affected versions
- Not specified
- Fixed versions
- 3.2.3-1
- CVEs
- CVE-2020-11647
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 12:56 UTC · Revision 1
Source evidence
In Wireshark 3.2.0 to 3.2.2, 3.0.0 to 3.0.9, and 2.6.0 to 2.6.15, the BACapp dissector could crash. This was addressed in epan/dissectors/packet-bacapp.c by limiting the amount of recursion.
osv:DEBIAN-CVE-2020-11647
wireshark
Fixed versions: 3.2.3-1
wireshark
Fixed versions: 3.2.3-1
wireshark
Fixed versions: 3.2.3-1
Complete source record
{
"id": "a133b01d9a4206e90c7186a3c473e5fe2e27cc62e11acaa9239f39600c6a8541",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-11647",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2020-11647",
"summary": "In Wireshark 3.2.0 to 3.2.2, 3.0.0 to 3.0.9, and 2.6.0 to 2.6.15, the BACapp dissector could crash. This was addressed in epan/dissectors/packet-bacapp.c by limiting the amount of recursion.",
"evidence": "osv:DEBIAN-CVE-2020-11647",
"products": [
{
"name": {
"value": "wireshark",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.2.3-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "wireshark",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.2.3-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "wireshark",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.2.3-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2020-11647",
"aliases": [
"DEBIAN-CVE-2020-11647"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.2.3-1"
}
]
}
],
"package": {
"name": "wireshark",
"purl": "pkg:deb/debian/wireshark?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-11647.json"
},
"ecosystem_specific": {
"urgency": "low"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.2.3-1"
}
]
}
],
"package": {
"name": "wireshark",
"purl": "pkg:deb/debian/wireshark?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-11647.json"
},
"ecosystem_specific": {
"urgency": "low"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.2.3-1"
}
]
}
],
"package": {
"name": "wireshark",
"purl": "pkg:deb/debian/wireshark?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-11647.json"
},
"ecosystem_specific": {
"urgency": "low"
}
}
],
"modified": "2026-10-26T12:01:20.757274988Z",
"provider": "osv",
"upstream": [
"CVE-2020-11647"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-11647"
]
},
"related_cves": [
{
"value": "CVE-2020-11647",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 451583,
"published_at": "2020-04-10T21:15:11.897+00:00"
}