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vuln-ubuntu/data/osv/usn/USN-5379-1.json
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{
"schema_version": "1.7.0",
"id": "USN-5379-1",
"summary": "klibc vulnerabilities",
"details": "It was discovered that klibc did not properly perform\nsome mathematical operations, leading to an integer overflow.\nAn attacker could possibly use this issue to cause a crash,\nresulting in a denial of service, or possibly execute\narbitrary code. (CVE-2021-31870)\n\nIt was discovered that klibc did not properly handled some\nmemory allocations on 64 bit systems. An attacker could\npossibly use this issue to cause a crash, resulting in a\ndenial of service, or possibly execute arbitrary code.\n(CVE-2021-31871)\n\nIt was discovered that klibc did not properly handled some file\nsizes values on 32 bit systems. An attacker could possibly use\nthis issue to cause a crash, resulting in a denial of service,\nor possibly execute arbitrary code. (CVE-2021-31872)\n\nIt was discovered that klibc did not properly handled some\nmemory allocations. An attacker could possibly use this issue\nto cause a crash, resulting in a denial of service, or possibly\nexecute arbitrary code. (CVE-2021-31873)\n",
"aliases": [],
"upstream": [
"UBUNTU-CVE-2021-31870",
"UBUNTU-CVE-2021-31871",
"UBUNTU-CVE-2021-31872",
"UBUNTU-CVE-2021-31873"
],
"related": [],
"published": "2022-04-18T11:37:31Z",
"modified": "2026-06-29T10:52:54Z",
"affected": [
{
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "klibc",
"purl": "pkg:deb/ubuntu/klibc@2.0.3-0ubuntu1.14.04.3+esm2?arch=source&distro=trusty/esm"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.3-0ubuntu1.14.04.3+esm2"
}
]
}
],
"versions": [
"2.0.1-3.1ubuntu2",
"2.0.2-1ubuntu1",
"2.0.2-1ubuntu2",
"2.0.3-0ubuntu1",
"2.0.3-0ubuntu1.14.04.1",
"2.0.3-0ubuntu1.14.04.2",
"2.0.3-0ubuntu1.14.04.3"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "klibc-utils",
"binary_version": "2.0.3-0ubuntu1.14.04.3+esm2"
},
{
"binary_name": "libklibc",
"binary_version": "2.0.3-0ubuntu1.14.04.3+esm2"
}
],
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"cves": [
{
"id": "CVE-2021-31870",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-31871",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-31872",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-31873",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
}
]
}
}
},
{
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "klibc",
"purl": "pkg:deb/ubuntu/klibc@2.0.4-8ubuntu1.16.04.4+esm1?arch=source&distro=esm-infra/xenial"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.4-8ubuntu1.16.04.4+esm1"
}
]
}
],
"versions": [
"2.0.3-0ubuntu1",
"2.0.4-4",
"2.0.4-6",
"2.0.4-7",
"2.0.4-8",
"2.0.4-8ubuntu1",
"2.0.4-8ubuntu1.16.04.1",
"2.0.4-8ubuntu1.16.04.2",
"2.0.4-8ubuntu1.16.04.3",
"2.0.4-8ubuntu1.16.04.4"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "klibc-utils",
"binary_version": "2.0.4-8ubuntu1.16.04.4+esm1"
},
{
"binary_name": "libklibc",
"binary_version": "2.0.4-8ubuntu1.16.04.4+esm1"
}
],
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"cves": [
{
"id": "CVE-2021-31870",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-31871",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-31872",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-31873",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
}
]
}
}
},
{
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "klibc",
"purl": "pkg:deb/ubuntu/klibc@2.0.4-9ubuntu2.1?arch=source&distro=bionic"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.4-9ubuntu2.1"
}
]
}
],
"versions": [
"2.0.4-9ubuntu1",
"2.0.4-9ubuntu2"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "klibc-utils",
"binary_version": "2.0.4-9ubuntu2.1"
},
{
"binary_name": "libklibc",
"binary_version": "2.0.4-9ubuntu2.1"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:18.04:LTS",
"cves": [
{
"id": "CVE-2021-31870",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-31871",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-31872",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-31873",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
}
]
}
}
},
{
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "klibc",
"purl": "pkg:deb/ubuntu/klibc@2.0.7-1ubuntu5.1?arch=source&distro=focal"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.7-1ubuntu5.1"
}
]
}
],
"versions": [
"2.0.6-1ubuntu1",
"2.0.6-1ubuntu2",
"2.0.7-1ubuntu1",
"2.0.7-1ubuntu3",
"2.0.7-1ubuntu4",
"2.0.7-1ubuntu5"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "klibc-utils",
"binary_version": "2.0.7-1ubuntu5.1"
},
{
"binary_name": "libklibc",
"binary_version": "2.0.7-1ubuntu5.1"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:20.04:LTS",
"cves": [
{
"id": "CVE-2021-31870",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-31871",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-31872",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-31873",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
}
]
}
}
}
],
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5379-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-31870"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-31871"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-31872"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-31873"
}
]
}
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