Heap-based buffer overflow in the xmlFAParsePosCharGroup 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.

No CVSS v4.0

No CVSS v3.1

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.02142.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a n/a affected
Version Status Constraints
n/a affected —

Configuration 1 [-]

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Configuration 2 [-]

OR cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

Configuration 3 [-]

OR 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:*:*:*

Configuration 4 [-]

OR cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*

Configuration 5 [-]

cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*

Configuration 6 [-]

OR cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:*
Package CPE Advisory Released Date
Red Hat Enterprise Linux 6
libxml2-0:2.7.6-21.el6_8.1 cpe:/o:redhat:enterprise_linux:6 RHSA-2016:1292 2016-06-23T00:00:00Z
Red Hat Enterprise Linux 7
libxml2-0:2.9.1-6.el7_2.3 cpe:/o:redhat:enterprise_linux:7 RHSA-2016:1292 2016-06-23T00:00:00Z
Text-Only JBCS
cpe:/a:redhat:jboss_core_services:1 RHSA-2016:2957 2016-12-15T00:00:00Z

No data.

Project Subscriptions

Vendors Products
Apple Subscribe
Iphone Os Subscribe
Mac Os X Subscribe
Tvos Subscribe
Watchos Subscribe
Canonical Subscribe
Ubuntu Linux Subscribe
Debian Subscribe
Debian Linux Subscribe
Mcafee Subscribe
Web Gateway Subscribe
Redhat Subscribe
Enterprise Linux Subscribe
Enterprise Linux Desktop Subscribe
Enterprise Linux Server Subscribe
Enterprise Linux Server Aus Subscribe
Enterprise Linux Server Eus Subscribe
Enterprise Linux Server Tus Subscribe
Enterprise Linux Workstation Subscribe
Jboss Core Services Subscribe
Xmlsoft Subscribe
Libxml2 Subscribe
Advisories
Source ID Title
Debian DLA Debian DLA DLA-503-1 libxml2 security update
Debian DSA Debian DSA DSA-3593-1 libxml2 security update
EUVD EUVD EUVD-2016-2935 Heap-based buffer overflow in the xmlFAParsePosCharGroup 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.
Ubuntu USN Ubuntu USN USN-2994-1 libxml2 vulnerabilities
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
http://lists.apple.com/archives/security-announce/2016/May/msg00001.html cve-icon cve-icon
http://lists.apple.com/archives/security-announce/2016/May/msg00002.html cve-icon cve-icon
http://lists.apple.com/archives/security-announce/2016/May/msg00003.html cve-icon cve-icon
http://lists.apple.com/archives/security-announce/2016/May/msg00004.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2016-2957.html cve-icon cve-icon
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html cve-icon cve-icon
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html cve-icon cve-icon
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html cve-icon cve-icon
http://www.securityfocus.com/bid/90691 cve-icon cve-icon
http://www.securitytracker.com/id/1035890 cve-icon cve-icon
http://www.ubuntu.com/usn/USN-2994-1 cve-icon cve-icon
http://xmlsoft.org/news.html cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2016:1292 cve-icon cve-icon
https://bugzilla.gnome.org/show_bug.cgi?id=757711 cve-icon cve-icon
https://git.gnome.org/browse/libxml2/commit/?id=cbb271655cadeb8dbb258a64701d9a3a0c4835b4 cve-icon cve-icon
https://kc.mcafee.com/corporate/index?page=content&id=SB10170 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2016-1840 cve-icon
https://security.gentoo.org/glsa/201701-37 cve-icon cve-icon
https://support.apple.com/HT206564 cve-icon cve-icon
https://support.apple.com/HT206566 cve-icon cve-icon
https://support.apple.com/HT206567 cve-icon cve-icon
https://support.apple.com/HT206568 cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2016-1840 cve-icon
https://www.debian.org/security/2016/dsa-3593 cve-icon cve-icon
https://www.tenable.com/security/tns-2016-18 cve-icon cve-icon
History

No history.

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2024-08-05T23:10:40.187Z

Reserved: 2016-01-13T00:00:00

Link: CVE-2016-1840

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2016-05-20T10:59:54.190

Modified: 2025-04-12T10:46:40.837

Link: CVE-2016-1840

cve-icon Redhat

Severity : Important

Publid Date: 2016-05-23T00:00:00Z

Links: CVE-2016-1840 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses