CVE-2016-1834

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Summary

CVECVE-2016-1834
StatePUBLISHED
Assignerapple
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-05-20 10:59:48 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionHeap-based buffer overflow in the xmlStrncat 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 execute arbitrary code or cause a denial of service (memory corruption) via a crafted XML document.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from ADP

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Problem Types: CWE-119 | CWE-122 | n/a | CWE-122 CWE-122 Heap-based Buffer Overflow

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
3.0[email protected]Primary7.8HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
2.0[email protected]Primary9.3AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v3.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:M/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Apple Iphone Os All All All All
Operating System Apple Mac Os X All All All All
Operating System Apple Tvos All All All All
Operating System Apple Watchos All All All All
Operating System Canonical Ubuntu Linux 12.04 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 15.10 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Debian Debian Linux 8.0 All All All
Application Mcafee Web Gateway All All All All
Application Mcafee Web Gateway All All All All
Operating System Redhat Enterprise Linux Desktop 6.0 All All All
Operating System Redhat Enterprise Linux Desktop 7.0 All All All
Operating System Redhat Enterprise Linux Server 6.0 All All All
Operating System Redhat Enterprise Linux Server 7.0 All All All
Operating System Redhat Enterprise Linux Server Aus 7.2 All All All
Operating System Redhat Enterprise Linux Server Aus 7.3 All All All
Operating System Redhat Enterprise Linux Server Aus 7.4 All All All
Operating System Redhat Enterprise Linux Server Aus 7.6 All All All
Operating System Redhat Enterprise Linux Server Eus 7.2 All All All
Operating System Redhat Enterprise Linux Server Eus 7.3 All All All
Operating System Redhat Enterprise Linux Server Eus 7.4 All All All
Operating System Redhat Enterprise Linux Server Eus 7.5 All All All
Operating System Redhat Enterprise Linux Server Eus 7.6 All All All
Operating System Redhat Enterprise Linux Server Tus 7.2 All All All
Operating System Redhat Enterprise Linux Server Tus 7.3 All All All
Operating System Redhat Enterprise Linux Server Tus 7.6 All All All
Operating System Redhat Enterprise Linux Workstation 6.0 All All All
Operating System Redhat Enterprise Linux Workstation 7.0 All All All
Application Xmlsoft Libxml2 All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
McAfee Security Bulletin: McAfee Web Gateway update fixes several vulnerabilities related to xml parsing af854a3a-2127-422b-91ae-364da2661108 kc.mcafee.com Patch, Third Party Advisory
Apple iOS Multiple Flaws Let Remote Users Execute Arbitrary Code and Deny Service and Let Remote and Local Users Obtain Potentially Sensitive Information - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Third Party Advisory, VDB Entry
Releases af854a3a-2127-422b-91ae-364da2661108 xmlsoft.org Release Notes, Vendor Advisory
USN-2994-1: libxml2 vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
[R7] LCE 4.8.1 Fixes Multiple Vulnerabilities - Security Advisory | Tenable™ af854a3a-2127-422b-91ae-364da2661108 www.tenable.com Third Party Advisory
About the security content of OS X El Capitan v10.11.5 and Security Update 2016-003 - Apple Support af854a3a-2127-422b-91ae-364da2661108 support.apple.com Vendor Advisory
Bug 763071 – heap-buffer-overflow in xmlStrncat af854a3a-2127-422b-91ae-364da2661108 bugzilla.gnome.org Exploit, Issue Tracking, Third Party Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
Oracle VM Server for x86 Bulletin - July 2016 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Third Party Advisory
APPLE-SA-2016-05-16-2 iOS 9.3.2 af854a3a-2127-422b-91ae-364da2661108 lists.apple.com Mailing List, Vendor Advisory
Bug 763071: heap-buffer-overflow in xmlStrncat <https://bugzilla.gnome.org/show_bug.cgi?id=763071> (8fbbf551) · Commits · GNOME / libxml2 · GitLab af854a3a-2127-422b-91ae-364da2661108 git.gnome.org Patch, Third Party Advisory
About the security content of tvOS 9.2.1 - Apple Support af854a3a-2127-422b-91ae-364da2661108 support.apple.com Vendor Advisory
Oracle Linux Bulletin - July 2016 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Third Party Advisory
APPLE-SA-2016-05-16-3 watchOS 2.2.1 af854a3a-2127-422b-91ae-364da2661108 lists.apple.com Mailing List, Vendor Advisory
APPLE-SA-2016-05-16-4 OS X El Capitan 10.11.5 and Security Update 2016-003 af854a3a-2127-422b-91ae-364da2661108 lists.apple.com Mailing List, Vendor Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
About the security content of watchOS 2.2.1 - Apple Support af854a3a-2127-422b-91ae-364da2661108 support.apple.com Vendor Advisory
Apple - Lists.apple.com af854a3a-2127-422b-91ae-364da2661108 lists.apple.com Mailing List, Vendor Advisory
Debian -- Security Information -- DSA-3593-1 libxml2 af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
About the security content of iOS 9.3.2 - Apple Support af854a3a-2127-422b-91ae-364da2661108 support.apple.com Vendor Advisory
Apple Mac OS X/watchOS/iOS/tvOS Multiple Security Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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