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CVE-2017-5340

CRITICAL
9.8
CVSS Score
Published: January 11, 2017 at 06:02 AM UTC
Updated: June 17, 2026 at 01:20 AM UTC
2 products affected across 2 vendorsPHPClustered Data ONTAP

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Severity
CRITICAL9.8
Exploit prediction
EPSS 17%

Description

Zend/zend_hash.c in PHP before 7.0.15 and 7.1.x before 7.1.1 mishandles certain cases that require large array allocations, which allows remote attackers to execute arbitrary code or cause a denial of service (integer overflow, uninitialized memory access, and use of arbitrary destructor function pointers) via crafted serialized data.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Clustered Data ONTAP· NetApp
95%
All versions
PHP· PHPdrupal
95%
7.0.0 ≤ v < 7.0.157.1.0 ≤ v < 7.1.1
Affected range stops below 7.0.15, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.1.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (6)

VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/95371
VDB Entryx_refsource_SECTRACKThird Party Advisory
Source: [email protected]
http://www.securitytracker.com/id/1037659
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2018:1296
x_refsource_CONFIRMExploitIssue TrackingVDB EntryVendor Advisory
Source: [email protected]
https://bugs.php.net/bug.php?id=73832
x_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://github.com/php/php-src/commit/4cc0286f2f3780abc6084bcdae5dce595daa3c12
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20180112-0001/

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-190

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