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

http://php.net/ChangeLog-5.php

http://php.net/ChangeLog-7.php

http://www.debian.org/security/2017/dsa-3783

http://www.securityfocus.com/bid/95768

http://www.securitytracker.com/id/1037659

https://access.redhat.com/errata/RHSA-2018:1296

https://bugs.php.net/bug.php?id=73825

https://github.com/php/php-src/commit/16b3003ffc6393e250f069aa28a78dc5a2c064b2

https://security.gentoo.org/glsa/201702-29

https://security.netapp.com/advisory/ntap-20180112-0001/

https://www.tenable.com/security/tns-2017-04

Details

Risk Information

CVSS v2

CVSS v3