An issue was discovered in PHP before 5.6.36, 7.0.x before 7.0.30, 7.1.x before 7.1.17, and 7.2.x before 7.2.5. ext/ldap/ldap.c allows remote LDAP servers to cause a denial of service (NULL pointer dereference and application crash) because of mishandling of the ldap_get_dn return value.
http://php.net/ChangeLog-5.php
http://php.net/ChangeLog-7.php
http://www.securityfocus.com/bid/104019
http://www.securitytracker.com/id/1040807
https://access.redhat.com/errata/RHSA-2019:2519
https://bugs.php.net/bug.php?id=76248
https://lists.debian.org/debian-lts-announce/2018/05/msg00004.html
https://lists.debian.org/debian-lts-announce/2018/06/msg00005.html
https://security.gentoo.org/glsa/201812-01
https://security.netapp.com/advisory/ntap-20180607-0003/
https://usn.ubuntu.com/3646-1/
https://usn.ubuntu.com/3646-2/
https://www.debian.org/security/2018/dsa-4240
Source: MITRE
Published: 2018-04-29
Updated: 2019-08-19
Type: CWE-476
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH