Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian | Debian Linux | 8.0 |
| Canonical | Ubuntu Linux | 12.04 |
| Xmlsoft | Libxml2 | <= 2.9.3 |
Related Weaknesses (CWE)
References
- 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.htm
- 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=slack
FAQ
What is CVE-2016-4449?
CVE-2016-4449 is a vulnerability with a CVSS score of 7.1 (HIGH). 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 arbitrar...
How severe is CVE-2016-4449?
CVE-2016-4449 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-4449?
Check the references section above for vendor advisories and patch information. Affected products include: Debian Debian Linux, Canonical Ubuntu Linux, Xmlsoft Libxml2.