Medium
Security advisory
Use-after-free vulnerability in the xmlDictComputeFastKey function in libxml2 before 2.9.4, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1, allows remote attackers to cause a denial of service via a crafted XML document.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-1836
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:59 UTC · Revision 1
Source evidence
Use-after-free vulnerability in the xmlDictComputeFastKey function in libxml2 before 2.9.4, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1, allows remote attackers to cause a denial of service via a crafted XML document.
osv:CVE-2016-1836
Complete source record
{
"id": "d94817633900f2622a70ec88e41c5823d17a02fed1908348cb89f321179b1ce2",
"url": "https://osv.dev/vulnerability/CVE-2016-1836",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-1836",
"summary": "Use-after-free vulnerability in the xmlDictComputeFastKey function in libxml2 before 2.9.4, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1, allows remote attackers to cause a denial of service via a crafted XML document.",
"evidence": "osv:CVE-2016-1836",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2016-1836",
"aliases": [
"CVE-2016-1836"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
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"type": "GIT",
"events": [
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},
{
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"CVE-2016-1839",
"CVE-2016-1838",
"CVE-2016-1840",
"CVE-2016-4449",
"CVE-2016-4483",
"CVE-2016-1834",
"CVE-2016-3705",
"v2.9.4-rc2",
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"CVE-2016-1762",
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"CVE-2015-8242",
"CVE-2015-7500",
"CVE-2015-7499-2",
"CVE-2015-7499-1",
"CVE-2015-5312",
"CVE-2015-7497",
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"CVE-2015-7942-2",
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"LIBXML2.7.3",
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"LIBXML2_2_6_9",
"LIBXML2_2_6_8",
"LIBXML2_2_6_7",
"LIBXML2_2_6_6",
"LIBXML2_2_6_5",
"LIBXML2_2_6_4",
"LIBXML2_2_6_3",
"LIBXML2_2_6_2",
"LIBXML2_2_6_1",
"LIBXML2_6_0",
"LIBXML2_2_5_x",
"LIBXML2_2_5_10",
"LIBXML2_2_5_9",
"LIBXML2_2_5_8",
"LIBXML2_2_5_7",
"LIBXML_2_5_6",
"LIBXML_2_5_5",
"LIBXML_2_5_4",
"LIBXML_2_5_3",
"LIBXML_2_5_2",
"LIBXML_2_5_1",
"LIBXML2_2_5_0",
"LIBXML_2_4_30",
"LIBXML_2_4_29",
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"LIBXML_2_4_25",
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"LIBXML_2_4_23",
"LIBXML_2_4_22",
"LIBXML2_2_4_21",
"LIBXML_2_4_20",
"LIBXML_2_4_18",
"LIBXML_2_4_13",
"LIBXML_2_4_16",
"LIBXML_2_4_14",
"LIBXML_2_4_12",
"LIBXML_2_4_11",
"LIBXML_2_4_7",
"LIBXML_2_4_6",
"LIBXML_2_4_4",
"LIBXML_2_4_3",
"LIBXML_2_4_2",
"LIBXML_2_4_0",
"LIBXML_2_3_14",
"LIBXML_2_3_13",
"LIBXML_2_3_12",
"LIBXML_2_3_11",
"LIBXML_2_3_10",
"LIBXML_2_3_9",
"LIBXML_2_3_8",
"help",
"LIBXML_2_3_7",
"LIBXML_2_3_6",
"LIBXML_2_3_5",
"LIBXML_2_3_4",
"LIBXML_2_3_3",
"LIBXML_2_3_2",
"PRE_MUCKUP3",
"PRE_MUCKUP2",
"PRE_MUCKUP",
"LIBXML_2_3_0",
"LIBXML_2_2_8",
"LIBXML_2_2_7",
"LIBXML_2_2_6",
"LIBXML_2_2_4",
"GNOME_PRINT_0_24",
"LIBXML_2_2_3",
"LIBXML_2_2_1",
"LIBXML_2_1_1",
"LIBXML_2_1_0",
"LIB_XML_1_X",
"EAZEL-NAUTILUS-MS-AUG07",
"LIBXML_2_0_0",
"LIBXML_TEST_2_0_0",
"LIBXML_1_8_6",
"LIBXML_1_8_5",
"LIB_XML_1_8_3",
"LIB_XML_1_7_3",
"LIB_XML_1_7_1",
"LIB_XML_1_7_0",
"LIB_XML_1_6_2",
"LIB_XML_1_6_1",
"LIBXML_1_5_0",
"LIB_XML_1_4",
"LIB_XML_1_3",
"LIB_XML_1_1",
"FOR_GNOME_0_99_1",
"LIBXML_0_99",
"GNUMERIC_FIRST_PUBLIC_RELEASE",
"GNOME_0_30"
],
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}
},
{
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{
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"type": "GIT",
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{
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},
{
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"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*",
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{
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},
{
"fixed": "2.9.4"
}
],
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}
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"CVE-2016-1835",
"CVE-2016-1837",
"CVE-2016-1836",
"CVE-2016-1839",
"CVE-2016-1838",
"CVE-2016-1840",
"CVE-2016-4449",
"CVE-2016-4483",
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"v2.9.4-rc2",
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"CVE-2015-7499-1",
"CVE-2015-5312",
"CVE-2015-7497",
"CVE-2015-7498",
"CVE-2015-8035",
"CVE-2015-7942-2",
"CVE-2015-7942",
"CVE-2015-8317",
"CVE-2015-1819",
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"LIBXML_2_3_9",
"LIBXML_2_3_8",
"help",
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"PRE_MUCKUP3",
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"PRE_MUCKUP",
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"LIBXML_2_2_4",
"GNOME_PRINT_0_24",
"LIBXML_2_2_3",
"LIBXML_2_2_1",
"LIBXML_2_1_1",
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"LIBXML_1_5_0",
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"FOR_GNOME_0_99_1",
"LIBXML_0_99",
"GNUMERIC_FIRST_PUBLIC_RELEASE",
"GNOME_0_30"
],
"database_specific": {
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}
}
],
"modified": "2026-10-24T10:31:01.380593116Z",
"provider": "osv",
"references": [
"https://access.redhat.com/errata/RHSA-2016:1292",
"https://security.gentoo.org/glsa/201701-37",
"https://support.apple.com/HT206564",
"https://support.apple.com/HT206566",
"https://support.apple.com/HT206567",
"https://support.apple.com/HT206568",
"https://support.apple.com/HT206899",
"https://support.apple.com/HT206901",
"https://support.apple.com/HT206902",
"https://support.apple.com/HT206903",
"https://support.apple.com/HT206904",
"https://support.apple.com/HT206905",
"https://www.debian.org/security/2016/dsa-3593",
"https://www.tenable.com/security/tns-2016-18",
"https://bugzilla.gnome.org/show_bug.cgi?id=759398",
"https://git.gnome.org/browse/libxml2/commit/?id=45752d2c334b50016666d8f0ec3691e2d680f0a0",
"https://kc.mcafee.com/corporate/index?page=content&id=SB10170"
],
"provider_metadata": {
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{
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],
"vendor_product": "apple:iphone_os",
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{
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{
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}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
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],
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{
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}
],
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}
]
},
{
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],
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{
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}
],
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}
]
},
{
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],
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{
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}
],
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]
},
{
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],
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{
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{
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},
{
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},
{
"introduced": "7.6.0.0"
},
{
"last_affected": "7.6.2.3"
}
],
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}
]
},
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*"
],
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{
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{
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},
{
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},
{
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},
{
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},
{
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},
{
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},
{
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},
{
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}
],
"source": "CPE_STRING"
}
]
},
{
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],
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{
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{
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},
{
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}
],
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}
]
},
{
"cpes": [
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"cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*"
],
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{
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{
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},
{
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},
{
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},
{
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}
],
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}
]
},
{
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"cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*"
],
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{
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{
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},
{
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},
{
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},
{
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}
],
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}
]
},
{
"cpes": [
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"cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*"
],
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{
"range": [
{
"introduced": "7.2"
},
{
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},
{
"introduced": "7.3"
},
{
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},
{
"introduced": "7.4"
},
{
"last_affected": "7.4"
},
{
"introduced": "7.6"
},
{
"last_affected": "7.6"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server_eus",
"extracted_events": [
{
"range": [
{
"introduced": "7.2"
},
{
"last_affected": "7.2"
},
{
"introduced": "7.3"
},
{
"last_affected": "7.3"
},
{
"introduced": "7.4"
},
{
"last_affected": "7.4"
},
{
"introduced": "7.5"
},
{
"last_affected": "7.5"
},
{
"introduced": "7.6"
},
{
"last_affected": "7.6"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server_tus",
"extracted_events": [
{
"range": [
{
"introduced": "7.2"
},
{
"last_affected": "7.2"
},
{
"introduced": "7.3"
},
{
"last_affected": "7.3"
},
{
"introduced": "7.6"
},
{
"last_affected": "7.6"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_workstation",
"extracted_events": [
{
"range": [
{
"introduced": "6.0"
},
{
"last_affected": "6.0"
},
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2016-1836",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 439772,
"published_at": "2016-05-20T10:59:50.017+00:00"
}