ubuntu-cve-2021-20204
Vulnerability from osv_ubuntu
Published
2021-05-06 15:15
Modified
2026-05-20 14:53
Summary
Details
A heap memory corruption problem (use after free) can be triggered in libgetdata v0.10.0 when processing maliciously crafted dirfile databases. This degrades the confidentiality, integrity and availability of third-party software that uses libgetdata as a library. This vulnerability may lead to arbitrary code execution or privilege escalation depending on input/skills of attacker.
Severity
9.8 (Critical)
9.8 (Critical)
N/A (UNKNOWN)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libf95getdata2",
"binary_version": "0.9.0-2.2"
},
{
"binary_name": "libfgetdata2",
"binary_version": "0.9.0-2.2"
},
{
"binary_name": "libgetdata++3",
"binary_version": "0.9.0-2.2"
},
{
"binary_name": "libgetdata-perl",
"binary_version": "0.9.0-2.2"
},
{
"binary_name": "libgetdata-tools",
"binary_version": "0.9.0-2.2"
},
{
"binary_name": "libgetdata5",
"binary_version": "0.9.0-2.2"
},
{
"binary_name": "python-pygetdata",
"binary_version": "0.9.0-2.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "libgetdata",
"purl": "pkg:deb/ubuntu/libgetdata@0.9.0-2.2?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.7.3-6.2ubuntu1",
"0.9.0-2",
"0.9.0-2.1",
"0.9.0-2.2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libf95getdata7",
"binary_version": "0.10.0-3build2"
},
{
"binary_name": "libfgetdata6",
"binary_version": "0.10.0-3build2"
},
{
"binary_name": "libgetdata++7",
"binary_version": "0.10.0-3build2"
},
{
"binary_name": "libgetdata-perl",
"binary_version": "0.10.0-3build2"
},
{
"binary_name": "libgetdata-tools",
"binary_version": "0.10.0-3build2"
},
{
"binary_name": "libgetdata8",
"binary_version": "0.10.0-3build2"
},
{
"binary_name": "python-pygetdata",
"binary_version": "0.10.0-3build2"
},
{
"binary_name": "python3-pygetdata",
"binary_version": "0.10.0-3build2"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "libgetdata",
"purl": "pkg:deb/ubuntu/libgetdata@0.10.0-3build2?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.10.0-3build2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libf95getdata7",
"binary_version": "0.10.0-6build3"
},
{
"binary_name": "libfgetdata6",
"binary_version": "0.10.0-6build3"
},
{
"binary_name": "libgetdata++7",
"binary_version": "0.10.0-6build3"
},
{
"binary_name": "libgetdata-perl",
"binary_version": "0.10.0-6build3"
},
{
"binary_name": "libgetdata-tools",
"binary_version": "0.10.0-6build3"
},
{
"binary_name": "libgetdata8",
"binary_version": "0.10.0-6build3"
},
{
"binary_name": "python3-pygetdata",
"binary_version": "0.10.0-6build3"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "libgetdata",
"purl": "pkg:deb/ubuntu/libgetdata@0.10.0-6build3?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.10.0-6",
"0.10.0-6build2",
"0.10.0-6build3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libf95getdata7",
"binary_version": "0.11.0-3ubuntu1"
},
{
"binary_name": "libfgetdata6",
"binary_version": "0.11.0-3ubuntu1"
},
{
"binary_name": "libgetdata++7",
"binary_version": "0.11.0-3ubuntu1"
},
{
"binary_name": "libgetdata-perl",
"binary_version": "0.11.0-3ubuntu1"
},
{
"binary_name": "libgetdata-tools",
"binary_version": "0.11.0-3ubuntu1"
},
{
"binary_name": "libgetdata8",
"binary_version": "0.11.0-3ubuntu1"
},
{
"binary_name": "python3-pygetdata",
"binary_version": "0.11.0-3ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "libgetdata",
"purl": "pkg:deb/ubuntu/libgetdata@0.11.0-3ubuntu1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.10.0-10",
"0.11.0-1",
"0.11.0-2",
"0.11.0-2build1",
"0.11.0-3ubuntu1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libf95getdata7",
"binary_version": "0.11.0-13"
},
{
"binary_name": "libfgetdata6",
"binary_version": "0.11.0-13"
},
{
"binary_name": "libgetdata++7",
"binary_version": "0.11.0-13"
},
{
"binary_name": "libgetdata-perl",
"binary_version": "0.11.0-13"
},
{
"binary_name": "libgetdata-tools",
"binary_version": "0.11.0-13"
},
{
"binary_name": "libgetdata8",
"binary_version": "0.11.0-13"
},
{
"binary_name": "python3-pygetdata",
"binary_version": "0.11.0-13"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "libgetdata",
"purl": "pkg:deb/ubuntu/libgetdata@0.11.0-13?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.11.0-6",
"0.11.0-7",
"0.11.0-7ubuntu1",
"0.11.0-10",
"0.11.0-11",
"0.11.0-12",
"0.11.0-12build1",
"0.11.0-12build3",
"0.11.0-13"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libf95getdata7",
"binary_version": "0.11.0-15"
},
{
"binary_name": "libfgetdata6",
"binary_version": "0.11.0-15"
},
{
"binary_name": "libgetdata++7",
"binary_version": "0.11.0-15"
},
{
"binary_name": "libgetdata-perl",
"binary_version": "0.11.0-15"
},
{
"binary_name": "libgetdata-tools",
"binary_version": "0.11.0-15"
},
{
"binary_name": "libgetdata8",
"binary_version": "0.11.0-15"
},
{
"binary_name": "python3-pygetdata",
"binary_version": "0.11.0-15"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "libgetdata",
"purl": "pkg:deb/ubuntu/libgetdata@0.11.0-15?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.11.0-15"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libf95getdata7",
"binary_version": "0.11.0-17build1"
},
{
"binary_name": "libfgetdata6",
"binary_version": "0.11.0-17build1"
},
{
"binary_name": "libgetdata++7",
"binary_version": "0.11.0-17build1"
},
{
"binary_name": "libgetdata-perl",
"binary_version": "0.11.0-17build1"
},
{
"binary_name": "libgetdata-tools",
"binary_version": "0.11.0-17build1"
},
{
"binary_name": "libgetdata8",
"binary_version": "0.11.0-17build1"
},
{
"binary_name": "python3-pygetdata",
"binary_version": "0.11.0-17build1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "libgetdata",
"purl": "pkg:deb/ubuntu/libgetdata@0.11.0-17build1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.11.0-15",
"0.11.0-16",
"0.11.0-17",
"0.11.0-17build1"
]
}
],
"aliases": [],
"details": "A heap memory corruption problem (use after free) can be triggered in libgetdata v0.10.0 when processing maliciously crafted dirfile databases. This degrades the confidentiality, integrity and availability of third-party software that uses libgetdata as a library. This vulnerability may lead to arbitrary code execution or privilege escalation depending on input/skills of attacker.",
"id": "UBUNTU-CVE-2021-20204",
"modified": "2026-05-20T14:53:03Z",
"published": "2021-05-06T15:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-20204"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-20204"
}
],
"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": "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-2021-20204"
]
}
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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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