CVE-2016-4449

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.

Category

7.1
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.12%
Vendor Advisory slackware.com Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory ubuntu.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory redhat.com Vendor Advisory gnome.org
Affected: n/a n/a
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2016-4449?
CVE-2016-4449 has been scored as a high severity vulnerability.
How to fix CVE-2016-4449?
To fix CVE-2016-4449, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-4449 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-4449 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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