Vulnerability Details : CVE-2016-1836
Use-after-free vulnerability in the xmlDictComputeFastKey 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 via a crafted XML document.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2016-1836
- 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_workstation:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
- 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_aus: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:7.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
- 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_server_tus:7.2:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
- cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:*
- cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:*
- cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
- 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:16.04:*:*:*:lts:*:*:*
Threat overview for CVE-2016-1836
Top countries where our scanners detected CVE-2016-1836
Top open port discovered on systems with this issue
548
IPs affected by CVE-2016-1836 850
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2016-1836!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2016-1836
0.97%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 75 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-1836
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2016-1836
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-1836
-
https://support.apple.com/HT206905
About the security content of tvOS 9.2.2 - Apple SupportVendor Advisory
-
https://support.apple.com/HT206899
About the security content of iCloud for Windows 5.2.1 - Apple SupportVendor Advisory
-
https://support.apple.com/HT206903
About the security content of OS X El Capitan v10.11.6 and Security Update 2016-004 - Apple SupportVendor Advisory
-
http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.html
Apple - Lists.apple.comMailing List;Not Applicable;Vendor Advisory
-
http://xmlsoft.org/news.html
ReleasesRelease Notes;Vendor Advisory
-
http://www.securitytracker.com/id/1035890
Apple iOS Multiple Flaws Let Remote Users Execute Arbitrary Code and Deny Service and Let Remote and Local Users Obtain Potentially Sensitive Information - SecurityTrackerThird Party Advisory;VDB Entry
-
https://bugzilla.gnome.org/show_bug.cgi?id=759398
Access DeniedPermissions Required;Third Party Advisory
-
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
Oracle Solaris Bulletin - July 2016Third Party Advisory
-
http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html
Apple - Lists.apple.comMailing List;Vendor Advisory
-
https://access.redhat.com/errata/RHSA-2016:1292
RHSA-2016:1292 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
http://rhn.redhat.com/errata/RHSA-2016-2957.html
RHSA-2016:2957 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
https://security.gentoo.org/glsa/201701-37
libxml2: Multiple vulnerabilities (GLSA 201701-37) — Gentoo securityThird Party Advisory
-
https://support.apple.com/HT206902
About the security content of iOS 9.3.3 - Apple SupportVendor Advisory
-
http://www.ubuntu.com/usn/USN-2994-1
USN-2994-1: libxml2 vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://lists.apple.com/archives/security-announce/2016/May/msg00001.html
Apple - Lists.apple.comMailing List;Vendor Advisory
-
http://lists.apple.com/archives/security-announce/2016/May/msg00002.html
Apple - Lists.apple.comMailing List;Vendor Advisory
-
http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html
Apple - Lists.apple.comMailing List;Vendor Advisory
-
http://lists.apple.com/archives/security-announce/2016/Jul/msg00002.html
Apple - Lists.apple.comMailing List;Vendor Advisory
-
http://www.securityfocus.com/bid/90691
Apple Mac OS X/watchOS/iOS/tvOS Multiple Security VulnerabilitiesThird Party Advisory;VDB Entry
-
https://git.gnome.org/browse/libxml2/commit/?id=45752d2c334b50016666d8f0ec3691e2d680f0a0
Bug 759398: Heap use-after-free in xmlDictComputeFastKey... (45752d2c) · Commits · GNOME / libxml2 · GitLabPatch;Third Party Advisory
-
https://www.tenable.com/security/tns-2016-18
[R7] LCE 4.8.1 Fixes Multiple Vulnerabilities - Security Advisory | Tenable®Third Party Advisory
-
https://support.apple.com/HT206901
About the security content of iTunes 12.4.2 for Windows - Apple SupportVendor Advisory
-
https://www.debian.org/security/2016/dsa-3593
Debian -- Security Information -- DSA-3593-1 libxml2Third Party Advisory
-
http://lists.apple.com/archives/security-announce/2016/Jul/msg00005.html
Apple - Lists.apple.comMailing List;Vendor Advisory
-
https://kc.mcafee.com/corporate/index?page=content&id=SB10170
McAfee Security Bulletin: McAfee Web Gateway update fixes several vulnerabilities related to xml parsingPatch;Third Party Advisory
-
http://lists.apple.com/archives/security-announce/2016/May/msg00004.html
Apple - Lists.apple.comMailing List;Vendor Advisory
-
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
Oracle VM Server for x86 Bulletin - July 2016Third Party Advisory
-
http://lists.apple.com/archives/security-announce/2016/May/msg00003.html
Apple - Lists.apple.comMailing List;Vendor Advisory
-
https://support.apple.com/HT206568
About the security content of iOS 9.3.2 - Apple SupportVendor Advisory
-
https://support.apple.com/HT206567
About the security content of OS X El Capitan v10.11.5 and Security Update 2016-003 - Apple SupportVendor Advisory
-
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
Oracle Linux Bulletin - July 2016Third Party Advisory
-
https://support.apple.com/HT206566
About the security content of watchOS 2.2.1 - Apple SupportVendor Advisory
-
https://support.apple.com/HT206904
About the security content of watchOS 2.2.2 - Apple SupportVendor Advisory
-
https://support.apple.com/HT206564
About the security content of tvOS 9.2.1 - Apple SupportVendor Advisory
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