CVE-2017-16642 Information

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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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

http://php.net/ChangeLog-5.php http://php.net/ChangeLog-7.php http://www.securityfocus.com/bid/101745 https://access.redhat.com/errata/RHSA-2018:1296 https://access.redhat.com/errata/RHSA-2019:2519 https://bugs.php.net/bug.php?id=75055 https://github.com/derickr/timelib/commit/aa9156006e88565e1f1a5f7cc088b18322d57536 https://github.com/php/php-src/commit/5c0455bf2c8cd3c25401407f158e820aa3b239e1 https://security.netapp.com/advisory/ntap-20181123-0001/ 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/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

7.5