Vulnerability Description
The xml_parse_into_struct function in ext/xml/xml.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 allows remote attackers to cause a denial of service (buffer under-read and segmentation fault) or possibly have unspecified other impact via crafted XML data in the second argument, leading to a parser level of zero.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Php | Php | <= 5.5.34 |
| Opensuse | Leap | 42.1 |
| Fedoraproject | Fedora | 24 |
Related Weaknesses (CWE)
References
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183736.html
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.html
- http://lists.opensuse.org/opensuse-updates/2016-06/msg00027.html
- http://php.net/ChangeLog-5.phpPatch
- http://php.net/ChangeLog-7.phpPatch
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://www.debian.org/security/2016/dsa-3602
- http://www.openwall.com/lists/oss-security/2016/05/05/21
- http://www.securityfocus.com/bid/90174
- https://bugs.php.net/bug.php?id=72099Exploit
- https://git.php.net/?p=php-src.git%3Ba=commit%3Bh=dccda88f27a084bcbbb30198ace12b
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c
- https://security.gentoo.org/glsa/201611-22
FAQ
What is CVE-2016-4539?
CVE-2016-4539 is a vulnerability with a CVSS score of 9.8 (CRITICAL). The xml_parse_into_struct function in ext/xml/xml.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 allows remote attackers to cause a denial of service (buffer under-read and segmenta...
How severe is CVE-2016-4539?
CVE-2016-4539 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2016-4539?
Check the references section above for vendor advisories and patch information. Affected products include: Php Php, Opensuse Leap, Fedoraproject Fedora.