ubuntu-cve-2021-43082
Vulnerability from osv_ubuntu
Published
2021-11-03 16:15
Modified
2026-01-20 04:58
Summary
Details
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the stats-over-http plugin of Apache Traffic Server allows an attacker to overwrite memory. This issue affects Apache Traffic Server 9.1.0.
Severity
9.8 (Critical)
N/A (UNKNOWN)
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "trafficserver",
"binary_version": "5.3.0-2ubuntu2"
},
{
"binary_name": "trafficserver-dev",
"binary_version": "5.3.0-2ubuntu2"
},
{
"binary_name": "trafficserver-experimental-plugins",
"binary_version": "5.3.0-2ubuntu2"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "trafficserver",
"purl": "pkg:deb/ubuntu/trafficserver@5.3.0-2ubuntu2?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.3.0-2ubuntu1",
"5.3.0-2ubuntu2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "trafficserver",
"binary_version": "7.1.2+ds-3"
},
{
"binary_name": "trafficserver-dev",
"binary_version": "7.1.2+ds-3"
},
{
"binary_name": "trafficserver-experimental-plugins",
"binary_version": "7.1.2+ds-3"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "trafficserver",
"purl": "pkg:deb/ubuntu/trafficserver@7.1.2+ds-3?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.0.0-5",
"7.1.2+ds-2",
"7.1.2+ds-2build1",
"7.1.2+ds-3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "trafficserver",
"binary_version": "8.0.5+ds-3ubuntu0.1~esm1"
},
{
"binary_name": "trafficserver-dev",
"binary_version": "8.0.5+ds-3ubuntu0.1~esm1"
},
{
"binary_name": "trafficserver-experimental-plugins",
"binary_version": "8.0.5+ds-3ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "trafficserver",
"purl": "pkg:deb/ubuntu/trafficserver@8.0.5+ds-3ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"8.0.5+ds-1",
"8.0.5+ds-2",
"8.0.5+ds-2build1",
"8.0.5+ds-2ubuntu1",
"8.0.5+ds-3",
"8.0.5+ds-3ubuntu0.1~esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "trafficserver",
"binary_version": "9.1.1+ds-2ubuntu0.1~esm1"
},
{
"binary_name": "trafficserver-dev",
"binary_version": "9.1.1+ds-2ubuntu0.1~esm1"
},
{
"binary_name": "trafficserver-experimental-plugins",
"binary_version": "9.1.1+ds-2ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:22.04:LTS",
"name": "trafficserver",
"purl": "pkg:deb/ubuntu/trafficserver@9.1.1+ds-2ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"8.1.1+ds-1.1",
"9.1.1+ds-2build1",
"9.1.1+ds-2ubuntu0.1~esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "trafficserver",
"binary_version": "9.2.3+ds-1+deb12u1build4"
},
{
"binary_name": "trafficserver-dev",
"binary_version": "9.2.3+ds-1+deb12u1build4"
},
{
"binary_name": "trafficserver-experimental-plugins",
"binary_version": "9.2.3+ds-1+deb12u1build4"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "trafficserver",
"purl": "pkg:deb/ubuntu/trafficserver@9.2.3+ds-1+deb12u1build4?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"9.2.1+ds-1build1",
"9.2.2+ds-1",
"9.2.3+ds-1",
"9.2.3+ds-1+deb12u1",
"9.2.3+ds-1+deb12u1build1",
"9.2.3+ds-1+deb12u1build3",
"9.2.3+ds-1+deb12u1build4"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "trafficserver",
"binary_version": "9.2.5+ds-1ubuntu2"
},
{
"binary_name": "trafficserver-dev",
"binary_version": "9.2.5+ds-1ubuntu2"
},
{
"binary_name": "trafficserver-experimental-plugins",
"binary_version": "9.2.5+ds-1ubuntu2"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "trafficserver",
"purl": "pkg:deb/ubuntu/trafficserver@9.2.5+ds-1ubuntu2?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"9.2.5+ds-1ubuntu1",
"9.2.5+ds-1ubuntu2"
]
}
],
"aliases": [],
"details": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027) vulnerability in the stats-over-http plugin of Apache Traffic Server allows an attacker to overwrite memory. This issue affects Apache Traffic Server 9.1.0.",
"id": "UBUNTU-CVE-2021-43082",
"modified": "2026-01-20T04:58:44Z",
"published": "2021-11-03T16:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-43082"
},
{
"type": "REPORT",
"url": "https://www.openwall.com/lists/oss-security/2021/11/02/11"
},
{
"type": "REPORT",
"url": "https://github.com/apache/trafficserver/pull/8475"
},
{
"type": "REPORT",
"url": "https://github.com/apache/trafficserver/commit/02b17dbe3cff71ffd31577d872e077531124d207"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-43082"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2021-43082"
],
"withdrawn": "2026-02-12T16:53:18Z"
}
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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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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