CVE-2017-12932

9.8 CRITICAL
Published: August 18, 2017 Modified: May 13, 2026
View on NVD

Description

ext/standard/var_unserializer.re in PHP 7.0.x through 7.0.22 and 7.1.x through 7.1.8 is prone to a heap use after free while unserializing untrusted data, related to improper use of the hash API for key deletion in a situation with an invalid array size. Exploitation of this issue can have an unspecified impact on the integrity of PHP.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://php.net/ChangeLog-7.php
Source: cve@mitre.org
Release Notes Vendor Advisory
http://www.securityfocus.com/bid/100427
Source: cve@mitre.org
Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:1296
Source: cve@mitre.org
https://access.redhat.com/errata/RHSA-2019:2519
Source: cve@mitre.org
https://bugs.php.net/bug.php?id=74103
Source: cve@mitre.org
Issue Tracking Vendor Advisory
https://github.com/php/php-src/commit/1a23ebc1fff59bf480ca92963b36eba5c1b904c4
Source: cve@mitre.org
Patch Third Party Advisory
https://security.gentoo.org/glsa/201709-21
Source: cve@mitre.org
https://security.netapp.com/advisory/ntap-20180112-0001/
Source: cve@mitre.org
https://www.debian.org/security/2018/dsa-4080
Source: cve@mitre.org
http://php.net/ChangeLog-7.php
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes Vendor Advisory
http://www.securityfocus.com/bid/100427
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:1296
Source: af854a3a-2127-422b-91ae-364da2661108
https://access.redhat.com/errata/RHSA-2019:2519
Source: af854a3a-2127-422b-91ae-364da2661108
https://bugs.php.net/bug.php?id=74103
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Vendor Advisory
https://github.com/php/php-src/commit/1a23ebc1fff59bf480ca92963b36eba5c1b904c4
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory
https://security.gentoo.org/glsa/201709-21
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.netapp.com/advisory/ntap-20180112-0001/
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.debian.org/security/2018/dsa-4080
Source: af854a3a-2127-422b-91ae-364da2661108

18 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
2.1%
84th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-416

Affected Vendors

php

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