Description
The object_common1 function in ext/standard/var_unserializer.c in PHP before 5.6.30, 7.0.x before 7.0.15, and 7.1.x before 7.1.1 allows remote attackers to cause a denial of service (buffer over-read and application crash) via crafted serialized data that is mishandled in a finish_nested_data call.
References (11)
Core 11
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://github.com/php/php-src/commit/16b3003ffc6393e250f069aa28a78dc5a2c064b2
Issue Tracking x_refsource_confirm
https://bugs.php.net/bug.php?id=73825
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:1296
Release Notes, Vendor Advisory x_refsource_confirm
http://php.net/ChangeLog-5.php
Vendor Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20180112-0001/
Third Party Advisory x_refsource_confirm
https://www.tenable.com/security/tns-2017-04
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2017/dsa-3783
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201702-29
Release Notes, Vendor Advisory x_refsource_confirm
http://php.net/ChangeLog-7.php
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1037659
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/95768
Scores
CVSS v3
7.5
EPSS
0.1417
EPSS Percentile
94.5%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-125
Status
published
Products (17)
php/php
7.0.0
php/php
7.0.1
php/php
7.0.2
php/php
7.0.3
php/php
7.0.4
php/php
7.0.5
php/php
7.0.6
php/php
7.0.7
php/php
7.0.8
php/php
7.0.9
... and 7 more
Published
Jan 24, 2017
Tracked Since
Feb 18, 2026