CVE-2016-1833

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

The htmlCurrentChar 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 (heap-based buffer over-read) via a crafted XML document.

References

http://lists.apple.com/archives/security-announce/2016/May/msg00001.html

http://lists.apple.com/archives/security-announce/2016/May/msg00002.html

http://lists.apple.com/archives/security-announce/2016/May/msg00003.html

http://lists.apple.com/archives/security-announce/2016/May/msg00004.html

http://rhn.redhat.com/errata/RHSA-2016-2957.html

http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html

http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html

http://www.securityfocus.com/bid/90691

http://www.securitytracker.com/id/1035890

http://www.ubuntu.com/usn/USN-2994-1

http://xmlsoft.org/news.html

https://access.redhat.com/errata/RHSA-2016:1292

https://bugs.chromium.org/p/project-zero/issues/detail?id=636

https://bugzilla.gnome.org/show_bug.cgi?id=758606

https://git.gnome.org/browse/libxml2/commit/?id=0bcd05c5cd83dec3406c8f68b769b1d610c72f76

https://kc.mcafee.com/corporate/index?page=content&id=SB10170

https://support.apple.com/HT206564

https://support.apple.com/HT206566

https://support.apple.com/HT206567

https://support.apple.com/HT206568

https://www.debian.org/security/2016/dsa-3593

https://www.tenable.com/security/tns-2016-18

Details

Source: MITRE

Published: 2016-05-20

Updated: 2019-03-25

Type: CWE-125

Risk Information

CVSS v2

Base Score: 4.3

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

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 5.5

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

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

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 2

OR

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

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

OR

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

Configuration 6

OR

cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:* versions from 7.5.0.0 to 7.5.2.10 (inclusive)

cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:* versions up to 7.6.2.3 (inclusive)

Tenable Plugins

View all (29 total)

IDNameProductFamilySeverity
99492Fedora 24 : libxml2 (2017-be8574d593)NessusFedora Local Security Checks
critical
99491Fedora 25 : libxml2 (2017-a3a47973eb)NessusFedora Local Security Checks
critical
97893Tenable Log Correlation Engine (LCE) < 4.8.1 Multiple VulnerabilitiesNessusMisc.
critical
93154SUSE SLES11 Security Update : libxml2 (SUSE-SU-2016:1604-1)NessusSuSE Local Security Checks
critical
93145FreeBSD : libxml2 -- multiple vulnerabilities (e195679d-045b-4953-bb33-be0073ba2ac6)NessusFreeBSD Local Security Checks
high
802004macOS < 10.11.5 Multiple VulnerabilitiesLog Correlation EngineOperating System Detection
high
9480Google Chrome < 52.0.2743.82 Multiple VulnerabilitesNessus Network MonitorWeb Clients
critical
9444Apple iOS 9.3.x < 9.3.2 Multiple VulnerabilitiesNessus Network MonitorMobile Devices
medium
9440Mac OS X 10.11.x < 10.11.5 Multiple VulnerabilitiesNessus Network MonitorOperating System Detection
medium
9431Apple TV 9.2.x < 9.2.1 Multiple VulnerabilitiesNessus Network MonitorInternet Services
medium
92221Amazon Linux AMI : libxml2 (ALAS-2016-719)NessusAmazon Linux Local Security Checks
critical
9392Mac OS X 10.11.x < 10.11.5 Multiple VulnerabilitiesNessus Network MonitorOperating System Detection
high
91808Scientific Linux Security Update : libxml2 on SL6.x, SL7.x i386/x86_64 (20160623)NessusScientific Linux Local Security Checks
critical
91802RHEL 6 / 7 : libxml2 (RHSA-2016:1292)NessusRed Hat Local Security Checks
critical
91800OracleVM 3.3 / 3.4 : libxml2 (OVMSA-2016-0087)NessusOracleVM Local Security Checks
critical
91797Oracle Linux 6 / 7 : libxml2 (ELSA-2016-1292)NessusOracle Linux Local Security Checks
critical
91786CentOS 6 / 7 : libxml2 (CESA-2016:1292)NessusCentOS Local Security Checks
critical
91656SUSE SLED12 / SLES12 Security Update : libxml2 (SUSE-SU-2016:1538-1)NessusSuSE Local Security Checks
critical
91640openSUSE Security Update : libxml2 (openSUSE-2016-734)NessusSuSE Local Security Checks
high
91639openSUSE Security Update : libxml2 (openSUSE-2016-733)NessusSuSE Local Security Checks
critical
91499Ubuntu 12.04 LTS / 14.04 LTS / 15.10 / 16.04 LTS : libxml2 vulnerabilities (USN-2994-1)NessusUbuntu Local Security Checks
high
91472Debian DLA-503-1 : libxml2 security updateNessusDebian Local Security Checks
high
91447Debian DSA-3593-1 : libxml2 - security updateNessusDebian Local Security Checks
high
9337Apple TV < 9.2.1 Multiple VulnerabilitiesNessus Network MonitorInternet Services
high
9332Apple iOS < 9.3.2 Multiple VulnerabilitiesNessus Network MonitorMobile Devices
high
91311Apple TV < 9.2.1 Multiple VulnerabilitiesNessusMisc.
high
91229Mac OS X 10.9.5 / 10.10.5 Multiple Vulnerabilities (Security Update 2016-003)NessusMacOS X Local Security Checks
high
91228Mac OS X 10.11.x < 10.11.5 Multiple VulnerabilitiesNessusMacOS X Local Security Checks
high
91225Apple iOS < 9.3.2 Multiple VulnerabilitiesNessusMobile Devices
high