CVE-2017-11628
In PHP before 5.6.31, 7.x before 7.0.21, and 7.1.x before 7.1.7, a stack-based buffer overflow in the zend_ini_do_op() function in Zend/zend_ini_parser.c could cause a denial of service or potentially allow executing code.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In PHP before 5.6.31, 7.x before 7.0.21, and 7.1.x before 7.1.7, a stack-based buffer overflow in the zend_ini_do_op() function in Zend/zend_ini_parser.c could cause a denial of service or potentially allow executing code. NOTE: this is only relevant for PHP applications that accept untrusted input (instead of the system's php.ini file) for the parse_ini_string or parse_ini_file function, e.g., a web application for syntax validation of php.ini directives.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 3.36% probability · 89th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- php/php
- Source
- cve@mitre.org
EPSS moved from 6.7% on 21 September 2026 to 3.4% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=05255749139b3686c8a6a58ee01131ac0047465e
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=5f8380d33e648964d2d5140f329cf2d4c443033c
- http://www.securityfocus.com/bid/99489Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=74603Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/201709-21
- https://security.netapp.com/advisory/ntap-20180112-0001/
- https://www.debian.org/security/2018/dsa-4080
- https://www.debian.org/security/2018/dsa-4081
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=05255749139b3686c8a6a58ee01131ac0047465e
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=5f8380d33e648964d2d5140f329cf2d4c443033c
- http://www.securityfocus.com/bid/99489Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=74603Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/201709-21
- https://security.netapp.com/advisory/ntap-20180112-0001/
- https://www.debian.org/security/2018/dsa-4080
- https://www.debian.org/security/2018/dsa-4081
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.