MediumFix available
tcpreplay — security advisory
Null Pointer Dereference in mask_cidr6 component at cidr.c in Tcpreplay 4.4.4 allows attackers to crash the application via crafted tcprewrite command.
- Products
- tcpreplay
- Affected versions
- 4.4.3-1, 4.4.4-1, 4.5.1-1, 4.5.2-1, 4.5.3-1, 4.5.4-1
- Fixed versions
- 4.5.1-1
- CVEs
- CVE-2023-43279
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 16:25 UTC · Revision 1
Source evidence
Null Pointer Dereference in mask_cidr6 component at cidr.c in Tcpreplay 4.4.4 allows attackers to crash the application via crafted tcprewrite command.
osv:DEBIAN-CVE-2023-43279
tcpreplay
Fixed versions: Not specified
tcpreplay
Fixed versions: 4.5.1-1
tcpreplay
Fixed versions: 4.5.1-1
Complete source record
{
"id": "a57dd33d2729ceb8ac013958396149902b3ff587415203c221979dabd93b0b30",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-43279",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2023-43279",
"summary": "Null Pointer Dereference in mask_cidr6 component at cidr.c in Tcpreplay 4.4.4 allows attackers to crash the application via crafted tcprewrite command.",
"evidence": "osv:DEBIAN-CVE-2023-43279",
"products": [
{
"name": {
"value": "tcpreplay",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.4.3-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.4.4-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.5.1-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.5.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.5.3-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.5.4-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "tcpreplay",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.1-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.1-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2023-43279",
"aliases": [
"DEBIAN-CVE-2023-43279"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "tcpreplay",
"purl": "pkg:deb/debian/tcpreplay?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"4.4.3-1",
"4.4.4-1",
"4.5.1-1",
"4.5.2-1",
"4.5.3-1",
"4.5.4-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-43279.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.5.1-1"
}
]
}
],
"package": {
"name": "tcpreplay",
"purl": "pkg:deb/debian/tcpreplay?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-43279.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.5.1-1"
}
]
}
],
"package": {
"name": "tcpreplay",
"purl": "pkg:deb/debian/tcpreplay?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-43279.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
}
],
"modified": "2026-10-26T18:03:06.504809778Z",
"provider": "osv",
"upstream": [
"CVE-2023-43279"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-43279"
]
},
"related_cves": [
{
"value": "CVE-2023-43279",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 457658,
"published_at": "2024-03-12T22:15:07.197+00:00"
}