National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

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

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9

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 v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0

Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://php.net/ChangeLog-5.php Issue Tracking Release Notes Vendor Advisory
http://php.net/ChangeLog-7.php Issue Tracking Release Notes Vendor Advisory
http://www.securityfocus.com/bid/101745 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:1296
https://bugs.php.net/bug.php?id=75055 Issue Tracking Third Party Advisory
https://github.com/derickr/timelib/commit/aa9156006e88565e1f1a5f7cc088b18322d57536 Issue Tracking Patch Third Party Advisory
https://github.com/php/php-src/commit/5c0455bf2c8cd3c25401407f158e820aa3b239e1 Issue Tracking Patch Third Party Advisory
https://usn.ubuntu.com/3566-1/
https://www.debian.org/security/2018/dsa-4080
https://www.debian.org/security/2018/dsa-4081
https://www.exploit-db.com/exploits/43133/ Exploit Issue Tracking Third Party Advisory VDB Entry

Technical Details

Vulnerability Type (View All)

Change History

6 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-16642
NVD Published Date:
11/07/2017
NVD Last Modified:
05/03/2018