CVE-2016-4449

CVSS V2 Medium 5.8 CVSS V3 High 7.1

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.

Overview

CVE ID
CVE-2016-4449

Assigner
secalert@redhat.com

Vulnerability Status
Modified

Published Version
2016-06-09T16:59:07

Last Modified Date
2018-01-18T18:18:06

Weakness Enumerations

CWE	URL
CWE-20	http://cwe.mitre.org/data/definitions/20.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version End
cpe:2.3:o:debian:debian_linux:8.0:::::::*	1	OR
cpe:2.3:o:canonical:ubuntu_linux:12.04::::lts:::	1	OR
cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::	1	OR
cpe:2.3:o:canonical:ubuntu_linux:15.10:::::::*	1	OR
cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::	1	OR
cpe:2.3:a:xmlsoft:libxml2::::::::	1	OR	2.9.3

CVSS Version 2

Version
2.0

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

Access Vector
NETWORK

Access Compatibility
MEDIUM

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
NONE

Availability Impact
PARTIAL

Base Score
5.8

Severity
MEDIUM

Exploitability Score
8.6

Impact Score
4.9

CVSS Version 3

Version
3.0

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

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
REQUIRED

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
7.1

Base Severity
HIGH

Exploitability Score
1.8

Impact Score
5.2

References

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

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2016-4449
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4449

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 18:49:41				Added to TrackCVE
2022-12-02 09:50:44	2016-06-09T16:59Z	2016-06-09T16:59:07	CVE Published Date	updated
2022-12-02 09:50:44		2018-01-18T18:18:06	CVE Modified Date	updated
2022-12-02 09:50:44		Modified	Vulnerability Status	updated