CVE-2016-1834

At a glance

Severity: HIGH 7.8
EPSS: EPSS 4.62 % · percentile 92 (2026-10-27)
State: PUBLISHED
Published: 2016-05-20
Updated: 2025-12-04
Assigner: apple
NVD status: Modified

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.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	CISA-ADP
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
CVSS 3.0	HIGH 7.8	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)
CVSS 2.0	HIGH 9.3	AV:N/AC:M/Au:N/C:C/I:C/A:C	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

European references

ENISA EUVD · EUVD-2016-2929
GCVE · GCVE-0-2016-1834

CERT-FR advisories

CERTFR-2023-AVI-0499 — Multiples vulnérabilités dans Tenable Nessus Network Monitor · cert.ssi.gouv.fr
CERTFR-2022-AVI-267 — Multiples vulnérabilités dans Juniper Networks Junos Space · cert.ssi.gouv.fr
CERTFR-2020-AVI-420 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
CERTFR-2017-AVI-022 — Multiples vulnérabilités dans Juniper Network and Security Manager · cert.ssi.gouv.fr
CERTFR-2017-AVI-012 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
CERTFR-2016-AVI-172 — Multiples vulnérabilités dans les produits Apple · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

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:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* < 9.3.2
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* < 10.11.5
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* < 9.2.1
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* < 2.2.1
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:* < 2.9.4
cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:* ≥ 7.5.0.0 ≤ 7.5.2.10
cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:* ≥ 7.6.0.0 ≤ 7.6.2.3

Affected products

Product	Versions
	affected n/a

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD