usn-2994-1
Vulnerability from osv_ubuntu
It was discovered that libxml2 incorrectly handled certain malformed documents. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly cause libxml2 to crash, resulting in a denial of service. (CVE-2015-8806, CVE-2016-2073, CVE-2016-3627, CVE-2016-3705, CVE-2016-4447)
It was discovered that libxml2 incorrectly handled certain malformed documents. If a user or automated system were tricked into opening a specially crafted document, an attacker could cause libxml2 to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-1762, CVE-2016-1834)
Mateusz Jurczyk discovered that libxml2 incorrectly handled certain malformed documents. If a user or automated system were tricked into opening a specially crafted document, an attacker could cause libxml2 to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-1833, CVE-2016-1838, CVE-2016-1839)
Wei Lei and Liu Yang discovered that libxml2 incorrectly handled certain malformed documents. If a user or automated system were tricked into opening a specially crafted document, an attacker could cause libxml2 to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-1835, CVE-2016-1837)
Wei Lei and Liu Yang discovered that libxml2 incorrectly handled certain malformed documents. If a user or automated system were tricked into opening a specially crafted document, an attacker could cause libxml2 to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applied to Ubuntu 14.04 LTS, Ubuntu 15.10 and Ubuntu 16.04 LTS. (CVE-2016-1836)
Kostya Serebryany discovered that libxml2 incorrectly handled certain malformed documents. If a user or automated system were tricked into opening a specially crafted document, an attacker could cause libxml2 to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-1840)
It was discovered that libxml2 would load certain XML external entities. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly obtain access to arbitrary files or cause resource consumption. (CVE-2016-4449)
Gustavo Grieco discovered that libxml2 incorrectly handled certain malformed documents. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly cause libxml2 to crash, resulting in a denial of service. (CVE-2016-4483)
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2015-8806",
"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:3.0/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-2016-1762",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-1833",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-1834",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-1835",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-1836",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-1837",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-1838",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-1839",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-1840",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-2073",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-3627",
"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": "CVSS:3.0/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-2016-3705",
"severity": [
{
"score": "CVSS:3.0/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-2016-4447",
"severity": [
{
"score": "CVSS:3.0/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-2016-4449",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4483",
"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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:14.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libxml2",
"binary_version": "2.9.1+dfsg1-3ubuntu4.8"
},
{
"binary_name": "libxml2-utils",
"binary_version": "2.9.1+dfsg1-3ubuntu4.8"
},
{
"binary_name": "python-libxml2",
"binary_version": "2.9.1+dfsg1-3ubuntu4.8"
}
]
},
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "libxml2",
"purl": "pkg:deb/ubuntu/libxml2@2.9.1+dfsg1-3ubuntu4.8?arch=source\u0026distro=trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.1+dfsg1-3ubuntu4.8"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.9.1+dfsg1-3ubuntu2",
"2.9.1+dfsg1-3ubuntu3",
"2.9.1+dfsg1-3ubuntu4",
"2.9.1+dfsg1-3ubuntu4.1",
"2.9.1+dfsg1-3ubuntu4.2",
"2.9.1+dfsg1-3ubuntu4.3",
"2.9.1+dfsg1-3ubuntu4.4",
"2.9.1+dfsg1-3ubuntu4.5",
"2.9.1+dfsg1-3ubuntu4.6",
"2.9.1+dfsg1-3ubuntu4.7"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2015-8806",
"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:3.0/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-2016-1762",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-1833",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-1834",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-1835",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-1836",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-1837",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-1838",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-1839",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-1840",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-2073",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-3627",
"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": "CVSS:3.0/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-2016-3705",
"severity": [
{
"score": "CVSS:3.0/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-2016-4447",
"severity": [
{
"score": "CVSS:3.0/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-2016-4449",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2016-4483",
"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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:16.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libxml2",
"binary_version": "2.9.3+dfsg1-1ubuntu0.1"
},
{
"binary_name": "libxml2-utils",
"binary_version": "2.9.3+dfsg1-1ubuntu0.1"
},
{
"binary_name": "python-libxml2",
"binary_version": "2.9.3+dfsg1-1ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "libxml2",
"purl": "pkg:deb/ubuntu/libxml2@2.9.3+dfsg1-1ubuntu0.1?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.3+dfsg1-1ubuntu0.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.9.2+zdfsg1-4",
"2.9.2+zdfsg1-4ubuntu1",
"2.9.2+zdfsg1-4ubuntu2",
"2.9.2+zdfsg1-4ubuntu3",
"2.9.3+dfsg1-1"
]
}
],
"aliases": [],
"details": "It was discovered that libxml2 incorrectly handled certain malformed\ndocuments. If a user or automated system were tricked into opening a\nspecially crafted document, an attacker could possibly cause libxml2 to\ncrash, resulting in a denial of service. (CVE-2015-8806, CVE-2016-2073,\nCVE-2016-3627, CVE-2016-3705, CVE-2016-4447)\n\nIt was discovered that libxml2 incorrectly handled certain malformed\ndocuments. If a user or automated system were tricked into opening a\nspecially crafted document, an attacker could cause libxml2 to crash,\nresulting in a denial of service, or possibly execute arbitrary code.\n(CVE-2016-1762, CVE-2016-1834)\n\nMateusz Jurczyk discovered that libxml2 incorrectly handled certain\nmalformed documents. If a user or automated system were tricked into\nopening a specially crafted document, an attacker could cause libxml2 to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. (CVE-2016-1833, CVE-2016-1838, CVE-2016-1839)\n\nWei Lei and Liu Yang discovered that libxml2 incorrectly handled certain\nmalformed documents. If a user or automated system were tricked into\nopening a specially crafted document, an attacker could cause libxml2 to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. (CVE-2016-1835, CVE-2016-1837)\n\nWei Lei and Liu Yang discovered that libxml2 incorrectly handled certain\nmalformed documents. If a user or automated system were tricked into\nopening a specially crafted document, an attacker could cause libxml2 to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. This issue only applied to Ubuntu 14.04 LTS, Ubuntu 15.10 and\nUbuntu 16.04 LTS. (CVE-2016-1836)\n\nKostya Serebryany discovered that libxml2 incorrectly handled certain\nmalformed documents. If a user or automated system were tricked into\nopening a specially crafted document, an attacker could cause libxml2 to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. (CVE-2016-1840)\n\nIt was discovered that libxml2 would load certain XML external entities. If\na user or automated system were tricked into opening a specially crafted\ndocument, an attacker could possibly obtain access to arbitrary files or\ncause resource consumption. (CVE-2016-4449)\n\nGustavo Grieco discovered that libxml2 incorrectly handled certain\nmalformed documents. If a user or automated system were tricked into\nopening a specially crafted document, an attacker could possibly cause\nlibxml2 to crash, resulting in a denial of service. (CVE-2016-4483)\n",
"id": "USN-2994-1",
"modified": "2026-04-22T07:36:33Z",
"published": "2016-06-06T16:43:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-2994-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2015-8806"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-1762"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-1833"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-1834"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-1835"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-1836"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-1837"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-1838"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-1839"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-1840"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-2073"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-3627"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-3705"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-4447"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-4449"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-4483"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "libxml2 vulnerabilities",
"upstream": [
"UBUNTU-CVE-2015-8806",
"UBUNTU-CVE-2016-1762",
"UBUNTU-CVE-2016-1833",
"UBUNTU-CVE-2016-1834",
"UBUNTU-CVE-2016-1835",
"UBUNTU-CVE-2016-1836",
"UBUNTU-CVE-2016-1837",
"UBUNTU-CVE-2016-1838",
"UBUNTU-CVE-2016-1839",
"UBUNTU-CVE-2016-1840",
"UBUNTU-CVE-2016-2073",
"UBUNTU-CVE-2016-3627",
"UBUNTU-CVE-2016-3705",
"UBUNTU-CVE-2016-4447",
"UBUNTU-CVE-2016-4449",
"UBUNTU-CVE-2016-4483"
]
}
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.