High
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
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-11647
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:53 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:CVE-2020-11647
Complete source record
{
"id": "43bfde3cc7ece847a0b31e7460e4ec00c7b18944ccc0706a49bb7dcafd8373ec",
"url": "https://osv.dev/vulnerability/CVE-2020-11647",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "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:CVE-2020-11647",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-11647",
"aliases": [
"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": [
{
"repo": "https://github.com/wireshark/wireshark",
"type": "GIT",
"events": [
{
"introduced": "c7239f0201292253817c7c4c9a394a47113ca55c"
},
{
"last_affected": "1c3b8f526904a5e02a74390ae314714219ef240f"
},
{
"introduced": "937e33de60bcfcd6f68e7250e5e6914ae1d1e1e4"
},
{
"last_affected": "3b0e985675c4ae2a4353a730f23fa91d1b1314a7"
},
{
"introduced": "e0ed4cfa3d72110257da54c26ad3a28d282ef454"
},
{
"last_affected": "a3efece3d640743cd93978923ef039f9979d2b2e"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.0"
},
{
"last_affected": "2.6.15"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.0"
},
{
"last_affected": "3.0.9"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.2.0"
},
{
"last_affected": "3.2.2"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"wireshark-2.6.15",
"v2.6.15",
"wireshark-3.0.9",
"v3.0.9",
"wireshark-3.2.2",
"v3.2.2",
"v2.6.15rc0",
"v3.0.9rc0",
"v3.2.2rc0",
"wireshark-2.6.14",
"v2.6.14",
"wireshark-3.0.8",
"v3.0.8",
"wireshark-3.2.1",
"v3.2.1",
"v3.2.1rc0",
"wireshark-3.2.0",
"v3.2.0",
"v2.6.14rc0",
"v3.0.8rc0",
"wireshark-2.6.13",
"v2.6.13",
"wireshark-3.0.7",
"v3.0.7",
"v3.0.7rc0",
"v2.6.13rc0",
"wireshark-2.6.12",
"v2.6.12",
"wireshark-3.0.6",
"v3.0.6",
"v3.0.6rc0",
"wireshark-3.0.5",
"v3.0.5",
"v2.6.12rc0",
"v3.0.5rc0",
"wireshark-2.6.11",
"v2.6.11",
"wireshark-3.0.4",
"v3.0.4",
"v2.6.11rc0",
"v3.0.4rc0",
"wireshark-2.6.10",
"v2.6.10",
"wireshark-3.0.3",
"v3.0.3",
"v2.6.10rc0",
"v3.0.3rc0",
"wireshark-2.6.9",
"v2.6.9",
"wireshark-3.0.2",
"v3.0.2",
"v2.6.9rc0",
"v3.0.2rc0",
"wireshark-2.6.8",
"v2.6.8",
"wireshark-3.0.1",
"v3.0.1",
"v3.0.1rc0",
"wireshark-3.0.0",
"v3.0.0",
"v2.6.8rc0",
"wireshark-2.6.7",
"v2.6.7",
"v2.6.7rc0",
"wireshark-2.6.6",
"v2.6.6",
"v2.6.6rc0",
"wireshark-2.6.5",
"v2.6.5",
"v2.6.5rc0",
"wireshark-2.6.4",
"v2.6.4",
"v2.6.4rc0",
"wireshark-2.6.3",
"v2.6.3",
"v2.6.3rc0",
"wireshark-2.6.2",
"v2.6.2",
"v2.6.2rc0",
"wireshark-2.6.1",
"v2.6.1",
"v2.6.1rc0",
"wireshark-2.6.0",
"v2.6.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-11647.json"
}
},
{
"ranges": [
{
"repo": "https://gitlab.com/wireshark/wireshark",
"type": "GIT",
"events": [
{
"introduced": "c7239f0201292253817c7c4c9a394a47113ca55c"
},
{
"last_affected": "1c3b8f526904a5e02a74390ae314714219ef240f"
},
{
"introduced": "937e33de60bcfcd6f68e7250e5e6914ae1d1e1e4"
},
{
"last_affected": "3b0e985675c4ae2a4353a730f23fa91d1b1314a7"
},
{
"introduced": "e0ed4cfa3d72110257da54c26ad3a28d282ef454"
},
{
"last_affected": "a3efece3d640743cd93978923ef039f9979d2b2e"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.0"
},
{
"last_affected": "2.6.15"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.0"
},
{
"last_affected": "3.0.9"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.2.0"
},
{
"last_affected": "3.2.2"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"wireshark-2.6.15",
"v2.6.15",
"wireshark-3.0.9",
"v3.0.9",
"wireshark-3.2.2",
"v3.2.2",
"v2.6.15rc0",
"v3.0.9rc0",
"v3.2.2rc0",
"wireshark-2.6.14",
"v2.6.14",
"wireshark-3.0.8",
"v3.0.8",
"wireshark-3.2.1",
"v3.2.1",
"v3.2.1rc0",
"wireshark-3.2.0",
"v3.2.0",
"v2.6.14rc0",
"v3.0.8rc0",
"wireshark-2.6.13",
"v2.6.13",
"wireshark-3.0.7",
"v3.0.7",
"v3.0.7rc0",
"v2.6.13rc0",
"wireshark-2.6.12",
"v2.6.12",
"wireshark-3.0.6",
"v3.0.6",
"v3.0.6rc0",
"wireshark-3.0.5",
"v3.0.5",
"v2.6.12rc0",
"v3.0.5rc0",
"wireshark-2.6.11",
"v2.6.11",
"wireshark-3.0.4",
"v3.0.4",
"v2.6.11rc0",
"v3.0.4rc0",
"wireshark-2.6.10",
"v2.6.10",
"wireshark-3.0.3",
"v3.0.3",
"v2.6.10rc0",
"v3.0.3rc0",
"wireshark-2.6.9",
"v2.6.9",
"wireshark-3.0.2",
"v3.0.2",
"v2.6.9rc0",
"v3.0.2rc0",
"wireshark-2.6.8",
"v2.6.8",
"wireshark-3.0.1",
"v3.0.1",
"v3.0.1rc0",
"wireshark-3.0.0",
"v3.0.0",
"v2.6.8rc0",
"wireshark-2.6.7",
"v2.6.7",
"v2.6.7rc0",
"wireshark-2.6.6",
"v2.6.6",
"v2.6.6rc0",
"wireshark-2.6.5",
"v2.6.5",
"v2.6.5rc0",
"wireshark-2.6.4",
"v2.6.4",
"v2.6.4rc0",
"wireshark-2.6.3",
"v2.6.3",
"v2.6.3rc0",
"wireshark-2.6.2",
"v2.6.2",
"v2.6.2rc0",
"wireshark-2.6.1",
"v2.6.1",
"v2.6.1rc0",
"wireshark-2.6.0",
"v2.6.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-11647.json"
}
}
],
"modified": "2026-10-24T10:30:33.674780893Z",
"provider": "osv",
"references": [
"https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=6f56fc9496db158218243ea87e3660c874a0bab0",
"https://lists.debian.org/debian-lts-announce/2021/02/msg00008.html",
"https://security.gentoo.org/glsa/202007-13",
"https://www.wireshark.org/security/wnpa-sec-2020-07.html",
"https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16474"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
"cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "15.1"
},
{
"last_affected": "15.1"
},
{
"introduced": "15.2"
},
{
"last_affected": "15.2"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-11647",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 433340,
"published_at": "2020-04-10T21:15:11.897+00:00"
}