Description
Heap-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.
Published: 2016-05-20
Score: 7.8 High
EPSS: 2.4% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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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-2016-2929 Heap-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.
Ubuntu USN Ubuntu USN USN-2994-1 libxml2 vulnerabilities
History

Thu, 04 Dec 2025 18:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Subscriptions

Apple Iphone Os Mac Os X Tvos Watchos
Canonical Ubuntu Linux
Debian Debian Linux
Mcafee Web Gateway
Redhat Enterprise Linux Enterprise Linux Desktop Enterprise Linux Server Enterprise Linux Server Aus Enterprise Linux Server Eus Enterprise Linux Server Tus Enterprise Linux Workstation Jboss Core Services
Xmlsoft Libxml2
cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2025-12-04T17:15:15.868Z

Reserved: 2016-01-13T00:00:00.000Z

Link: CVE-2016-1834

cve-icon Vulnrichment

Updated: 2024-08-05T23:10:39.960Z

cve-icon NVD

Status : Deferred

Published: 2016-05-20T10:59:48.097

Modified: 2025-12-04T18:15:49.897

Link: CVE-2016-1834

cve-icon Redhat

Severity : Important

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

Links: CVE-2016-1834 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses