National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-16642 Detail

Current Description

In PHP before 5.6.32, 7.x before 7.0.25, and 7.1.x before 7.1.11, an error in the date extension's timelib_meridian handling of 'front of' and 'back of' directives could be used by attackers able to supply date strings to leak information from the interpreter, related to ext/date/lib/parse_date.c out-of-bounds reads affecting the php_parse_date function. NOTE: this is a different issue than CVE-2017-11145.

Source:  MITRE      Last Modified:  11/07/2017      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2017-16642
Original release date:
11/07/2017
Last revised:
01/09/2018
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
7.5 High
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N (legend)
Impact Score:
3.6
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):
None
Availability (A):
None
CVSS Severity (version 2.0):
CVSS v2 Base Score:
5.0 MEDIUM
Vector:
(AV:N/AC:L/Au:N/C:P/I:N/A:N) (legend)
Impact Subscore:
2.9
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

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://php.net/ChangeLog-5.php Issue Tracking; Release Notes; Vendor Advisory External Source CONFIRM http://php.net/ChangeLog-5.php
http://php.net/ChangeLog-7.php Issue Tracking; Release Notes; Vendor Advisory External Source CONFIRM http://php.net/ChangeLog-7.php
http://www.securityfocus.com/bid/101745 Third Party Advisory; VDB Entry External Source BID 101745
https://bugs.php.net/bug.php?id=75055 Issue Tracking; Third Party Advisory External Source CONFIRM https://bugs.php.net/bug.php?id=75055
https://github.com/derickr/timelib/commit/aa9156006e88565e1f1a5f7cc088b18322d57536 Issue Tracking; Patch; Third Party Advisory External Source CONFIRM https://github.com/derickr/timelib/commit/aa9156006e88565e1f1a5f7cc088b18322d57536
https://github.com/php/php-src/commit/5c0455bf2c8cd3c25401407f158e820aa3b239e1 Issue Tracking; Patch; Third Party Advisory External Source CONFIRM https://github.com/php/php-src/commit/5c0455bf2c8cd3c25401407f158e820aa3b239e1
https://www.debian.org/security/2018/dsa-4080 External Source DEBIAN DSA-4080
https://www.debian.org/security/2018/dsa-4081 External Source DEBIAN DSA-4081
https://www.exploit-db.com/exploits/43133/ Exploit; Issue Tracking; Third Party Advisory; VDB Entry External Source EXPLOIT-DB 43133

Technical Details

Vulnerability Type (View All)

Change History 4 change records found - show changes