usn-5179-1
Vulnerability from osv_ubuntu
Published
2021-12-07 12:44
Modified
2026-02-10 04:42
Summary
busybox vulnerabilities
Details
It was discovered that BusyBox incorrectly handled certain malformed gzip archives. If a user or automated system were tricked into processing a specially crafted gzip archive, a remote attacker could use this issue to cause BusyBox to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-28831)
It was discovered that BusyBox incorrectly handled certain malformed LZMA archives. If a user or automated system were tricked into processing a specially crafted LZMA archive, a remote attacker could use this issue to cause BusyBox to crash, resulting in a denial of service, or possibly leak sensitive information. (CVE-2021-42374)
Vera Mens, Uri Katz, Tal Keren, Sharon Brizinov, and Shachar Menashe discovered that BusyBox incorrectly handled certain awk patterns. If a user or automated system were tricked into processing a specially crafted awk pattern, a remote attacker could use this issue to cause BusyBox to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-42378, CVE-2021-42379, CVE-2021-42380, CVE-2021-42381, CVE-2021-42382, CVE-2021-42384, CVE-2021-42385, CVE-2021-42386)
References
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2021-28831",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42374",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42378",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42379",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42380",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42381",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42382",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42384",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42385",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42386",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "busybox",
"binary_version": "1:1.27.2-2ubuntu3.4"
},
{
"binary_name": "busybox-initramfs",
"binary_version": "1:1.27.2-2ubuntu3.4"
},
{
"binary_name": "busybox-static",
"binary_version": "1:1.27.2-2ubuntu3.4"
},
{
"binary_name": "busybox-syslogd",
"binary_version": "1:1.27.2-2ubuntu3.4"
},
{
"binary_name": "udhcpc",
"binary_version": "1:1.27.2-2ubuntu3.4"
},
{
"binary_name": "udhcpd",
"binary_version": "1:1.27.2-2ubuntu3.4"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "busybox",
"purl": "pkg:deb/ubuntu/busybox@1:1.27.2-2ubuntu3.4?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1:1.27.2-2ubuntu3.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:1.22.0-19ubuntu2",
"1:1.27.2-1ubuntu3",
"1:1.27.2-1ubuntu4",
"1:1.27.2-2ubuntu2",
"1:1.27.2-2ubuntu3",
"1:1.27.2-2ubuntu3.1",
"1:1.27.2-2ubuntu3.2",
"1:1.27.2-2ubuntu3.3"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2021-28831",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42374",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42378",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42379",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42380",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42381",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42382",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42384",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42385",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2021-42386",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:20.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "busybox",
"binary_version": "1:1.30.1-4ubuntu6.4"
},
{
"binary_name": "busybox-initramfs",
"binary_version": "1:1.30.1-4ubuntu6.4"
},
{
"binary_name": "busybox-static",
"binary_version": "1:1.30.1-4ubuntu6.4"
},
{
"binary_name": "busybox-syslogd",
"binary_version": "1:1.30.1-4ubuntu6.4"
},
{
"binary_name": "udhcpc",
"binary_version": "1:1.30.1-4ubuntu6.4"
},
{
"binary_name": "udhcpd",
"binary_version": "1:1.30.1-4ubuntu6.4"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "busybox",
"purl": "pkg:deb/ubuntu/busybox@1:1.30.1-4ubuntu6.4?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1:1.30.1-4ubuntu6.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:1.30.1-4ubuntu4",
"1:1.30.1-4ubuntu5",
"1:1.30.1-4ubuntu6",
"1:1.30.1-4ubuntu6.1",
"1:1.30.1-4ubuntu6.2",
"1:1.30.1-4ubuntu6.3"
]
}
],
"aliases": [],
"details": "It was discovered that BusyBox incorrectly handled certain malformed gzip\narchives. If a user or automated system were tricked into processing a\nspecially crafted gzip archive, a remote attacker could use this issue to\ncause BusyBox to crash, resulting in a denial of service, or possibly\nexecute arbitrary code. (CVE-2021-28831)\n\nIt was discovered that BusyBox incorrectly handled certain malformed LZMA\narchives. If a user or automated system were tricked into processing a\nspecially crafted LZMA archive, a remote attacker could use this issue to\ncause BusyBox to crash, resulting in a denial of service, or possibly\nleak sensitive information. (CVE-2021-42374)\n\nVera Mens, Uri Katz, Tal Keren, Sharon Brizinov, and Shachar Menashe\ndiscovered that BusyBox incorrectly handled certain awk patterns. If a user\nor automated system were tricked into processing a specially crafted awk\npattern, a remote attacker could use this issue to cause BusyBox to crash,\nresulting in a denial of service, or possibly execute arbitrary code.\n(CVE-2021-42378, CVE-2021-42379, CVE-2021-42380, CVE-2021-42381,\nCVE-2021-42382, CVE-2021-42384, CVE-2021-42385, CVE-2021-42386)\n",
"id": "USN-5179-1",
"modified": "2026-02-10T04:42:24Z",
"published": "2021-12-07T12:44:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5179-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-28831"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-42374"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-42378"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-42379"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-42380"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-42381"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-42382"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-42384"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-42385"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-42386"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "busybox vulnerabilities",
"upstream": [
"UBUNTU-CVE-2021-28831",
"UBUNTU-CVE-2021-42374",
"UBUNTU-CVE-2021-42378",
"UBUNTU-CVE-2021-42379",
"UBUNTU-CVE-2021-42380",
"UBUNTU-CVE-2021-42381",
"UBUNTU-CVE-2021-42382",
"UBUNTU-CVE-2021-42384",
"UBUNTU-CVE-2021-42385",
"UBUNTU-CVE-2021-42386"
]
}
Loading…
Loading…
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.
Loading…
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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…