National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-4449 Detail

Description

XML external entity (XXE) vulnerability in the xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.4, when not in validating mode, allows context-dependent attackers to read arbitrary files or cause a denial of service (resource consumption) via unspecified vectors.

Source:  MITRE
Description Last Modified:  06/09/2016

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.1 HIGH
Vector: AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H (V3 legend)
Impact Score: 5.2
Exploitability Score: 1.8


Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 5.8 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:P) (V2 legend)
Impact Subscore: 4.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): Partial
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized disclosure of information
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://jvn.jp/en/jp/JVN17535578/index.html
http://jvndb.jvn.jp/en/contents/2017/JVNDB-2017-000066.html
http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html
http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html
http://lists.apple.com/archives/security-announce/2016/Jul/msg00002.html
http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.html
http://lists.apple.com/archives/security-announce/2016/Jul/msg00005.html
http://rhn.redhat.com/errata/RHSA-2016-2957.html
http://www.openwall.com/lists/oss-security/2016/05/25/2
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.securityfocus.com/bid/90865
http://www.securitytracker.com/id/1036348
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.404722
http://www.ubuntu.com/usn/USN-2994-1
http://xmlsoft.org/news.html
https://access.redhat.com/errata/RHSA-2016:1292
https://git.gnome.org/browse/libxml2/commit/?id=b1d34de46a11323fccffa9fadeb33be670d602f5 Vendor Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05194709
https://kc.mcafee.com/corporate/index?page=content&id=SB10170
https://support.apple.com/HT206899
https://support.apple.com/HT206901
https://support.apple.com/HT206902
https://support.apple.com/HT206903
https://support.apple.com/HT206904
https://support.apple.com/HT206905
https://support.cybozu.com/ja-jp/article/9735
https://www.debian.org/security/2016/dsa-3593
https://www.tenable.com/security/tns-2016-18

Technical Details

Vulnerability Type (View All)

Change History

15 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-4449
NVD Published Date:
06/09/2016
NVD Last Modified:
01/18/2018