National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-5340 Detail

Current 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.

Source:  MITRE      Last Modified:  01/11/2017      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2017-5340
Original release date:
01/11/2017
Last revised:
01/13/2018
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
9.8 Critical
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (legend)
Impact Score:
5.9
Exploitability Score:
3.9
CVSS Version 3 Metrics:
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
CVSS Severity (version 2.0):
CVSS v2 Base Score:
7.5 HIGH
Vector:
(AV:N/AC:L/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore:
6.4
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://www.securityfocus.com/bid/95371 External Source BID 95371
http://www.securitytracker.com/id/1037659 External Source SECTRACK 1037659
https://bugs.php.net/bug.php?id=73832 Exploit; VDB Entry External Source CONFIRM https://bugs.php.net/bug.php?id=73832
https://github.com/php/php-src/commit/4cc0286f2f3780abc6084bcdae5dce595daa3c12 VDB Entry External Source CONFIRM https://github.com/php/php-src/commit/4cc0286f2f3780abc6084bcdae5dce595daa3c12
https://security.netapp.com/advisory/ntap-20180112-0001/ External Source CONFIRM https://security.netapp.com/advisory/ntap-20180112-0001/

Technical Details

Vulnerability Type (View All)

  • Integer Overflow or Wraparound (CWE-190)

Change History 5 change records found - show changes