CVE-2016-1836

libxml2: Heap use-after-free in xmlDictComputeFastKey

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Vulnerabilidad de uso después de liberación de memoria en la función xmlDictComputeFastKey en libxml2 en versiones anteriores a 2.9.4, como se utiliza en Apple iOS en versiones anteriores a 9.3.2, OS X en versiones anteriores a 10.11.5, tvOS en versiones anteriores a 9.2.1 y watchOS en versiones anteriores a 2.2.1, permite a atacantes remotos provocar una denegación de servicio a través de un documento XML manipulado.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-01-13 CVE Reserved
2016-05-17 CVE Published
2024-08-05 CVE Updated
2024-09-23 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (35)

URL	Tag	Source
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html	Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html	Third Party Advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html	Third Party Advisory
http://www.securityfocus.com/bid/90691	Third Party Advisory
http://www.securitytracker.com/id/1035890	Third Party Advisory
https://www.tenable.com/security/tns-2016-18	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://git.gnome.org/browse/libxml2/commit/?id=45752d2c334b50016666d8f0ec3691e2d680f0a0	2019-03-25
https://kc.mcafee.com/corporate/index?page=content&id=SB10170	2019-03-25

URL	Date	SRC
http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html	2019-03-25
http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html	2019-03-25
http://lists.apple.com/archives/security-announce/2016/Jul/msg00002.html	2019-03-25
http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.html	2019-03-25
http://lists.apple.com/archives/security-announce/2016/Jul/msg00005.html	2019-03-25
http://lists.apple.com/archives/security-announce/2016/May/msg00001.html	2019-03-25
http://lists.apple.com/archives/security-announce/2016/May/msg00002.html	2019-03-25
http://lists.apple.com/archives/security-announce/2016/May/msg00003.html	2019-03-25
http://lists.apple.com/archives/security-announce/2016/May/msg00004.html	2019-03-25
http://rhn.redhat.com/errata/RHSA-2016-2957.html	2019-03-25
http://www.ubuntu.com/usn/USN-2994-1	2019-03-25
http://xmlsoft.org/news.html	2019-03-25
https://access.redhat.com/errata/RHSA-2016:1292	2019-03-25
https://security.gentoo.org/glsa/201701-37	2019-03-25
https://support.apple.com/HT206564	2019-03-25
https://support.apple.com/HT206566	2019-03-25
https://support.apple.com/HT206567	2019-03-25
https://support.apple.com/HT206568	2019-03-25
https://support.apple.com/HT206899	2019-03-25
https://support.apple.com/HT206901	2019-03-25
https://support.apple.com/HT206902	2019-03-25
https://support.apple.com/HT206903	2019-03-25
https://support.apple.com/HT206904	2019-03-25
https://support.apple.com/HT206905	2019-03-25
https://www.debian.org/security/2016/dsa-3593	2019-03-25
https://access.redhat.com/security/cve/CVE-2016-1836	2016-12-15
https://bugzilla.redhat.com/show_bug.cgi?id=1338702	2016-12-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				15.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.10"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Apple Search vendor "Apple"		Iphone Os Search vendor "Apple" for product "Iphone Os"				< 9.3.2 Search vendor "Apple" for product "Iphone Os" and version " < 9.3.2"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				< 10.11.5 Search vendor "Apple" for product "Mac Os X" and version " < 10.11.5"		-		Affected
Apple Search vendor "Apple"		Tvos Search vendor "Apple" for product "Tvos"				< 9.2.1 Search vendor "Apple" for product "Tvos" and version " < 9.2.1"		-		Affected
Apple Search vendor "Apple"		Watchos Search vendor "Apple" for product "Watchos"				< 2.2.1 Search vendor "Apple" for product "Watchos" and version " < 2.2.1"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop"				6.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "6.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop"				7.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				6.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "6.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				7.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Aus Search vendor "Redhat" for product "Enterprise Linux Server Aus"				7.2 Search vendor "Redhat" for product "Enterprise Linux Server Aus" and version "7.2"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Aus Search vendor "Redhat" for product "Enterprise Linux Server Aus"				7.3 Search vendor "Redhat" for product "Enterprise Linux Server Aus" and version "7.3"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Aus Search vendor "Redhat" for product "Enterprise Linux Server Aus"				7.4 Search vendor "Redhat" for product "Enterprise Linux Server Aus" and version "7.4"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Aus Search vendor "Redhat" for product "Enterprise Linux Server Aus"				7.6 Search vendor "Redhat" for product "Enterprise Linux Server Aus" and version "7.6"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Eus Search vendor "Redhat" for product "Enterprise Linux Server Eus"				7.2 Search vendor "Redhat" for product "Enterprise Linux Server Eus" and version "7.2"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Eus Search vendor "Redhat" for product "Enterprise Linux Server Eus"				7.3 Search vendor "Redhat" for product "Enterprise Linux Server Eus" and version "7.3"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Eus Search vendor "Redhat" for product "Enterprise Linux Server Eus"				7.4 Search vendor "Redhat" for product "Enterprise Linux Server Eus" and version "7.4"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Eus Search vendor "Redhat" for product "Enterprise Linux Server Eus"				7.5 Search vendor "Redhat" for product "Enterprise Linux Server Eus" and version "7.5"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Eus Search vendor "Redhat" for product "Enterprise Linux Server Eus"				7.6 Search vendor "Redhat" for product "Enterprise Linux Server Eus" and version "7.6"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Tus Search vendor "Redhat" for product "Enterprise Linux Server Tus"				7.2 Search vendor "Redhat" for product "Enterprise Linux Server Tus" and version "7.2"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Tus Search vendor "Redhat" for product "Enterprise Linux Server Tus"				7.3 Search vendor "Redhat" for product "Enterprise Linux Server Tus" and version "7.3"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Tus Search vendor "Redhat" for product "Enterprise Linux Server Tus"				7.6 Search vendor "Redhat" for product "Enterprise Linux Server Tus" and version "7.6"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation"				6.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "6.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation"				7.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "7.0"		-		Affected
Xmlsoft Search vendor "Xmlsoft"		Libxml2 Search vendor "Xmlsoft" for product "Libxml2"				< 2.9.4 Search vendor "Xmlsoft" for product "Libxml2" and version " < 2.9.4"		-		Affected
Mcafee Search vendor "Mcafee"		Web Gateway Search vendor "Mcafee" for product "Web Gateway"				>= 7.5.0.0 <= 7.5.2.10 Search vendor "Mcafee" for product "Web Gateway" and version " >= 7.5.0.0 <= 7.5.2.10"		-		Affected
Mcafee Search vendor "Mcafee"		Web Gateway Search vendor "Mcafee" for product "Web Gateway"				>= 7.6.0.0 <= 7.6.2.3 Search vendor "Mcafee" for product "Web Gateway" and version " >= 7.6.0.0 <= 7.6.2.3"		-		Affected