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CVE Record

CVE-2016-4539: 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 befo...

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.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This is a PHP XML parsing flaw that can let a remote user crash a vulnerable PHP process with crafted XML. The main business risk is service interruption on systems still running old PHP 5.5, 5.6, or 7.0 releases. Exposure is most likely in legacy PHP applications that accept untrusted XML and process it through PHP ext/xml, especially internet-facing APIs or upload paths. Distribution advisories indicate packaged PHP updates were issued by multiple Linux vendors. Treat this as a targeted legacy-platform risk. It is not shown as actively exploited in the supplied sources, but exposed XML-processing services on old PHP should be prioritized because a remote crash can interrupt availability. Mitigation focus: Upgrade PHP to 5.5.35, 5.6.21, 7.0.6, or a vendor-fixed package.; Prefer migration to a currently supported PHP branch where possible.; Apply relevant distribution advisories from Debian, Red Hat, openSUSE, Gentoo, or Fedora..

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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7Source links

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n/an/an/aListed
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