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.
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Php | Php | * | 5.6.36 (excluding) |
| Php | Php | 7.0.0 (including) | 7.0.30 (excluding) |
| Php | Php | 7.1.0 (including) | 7.1.17 (excluding) |
| Php | Php | 7.2.0 (including) | 7.2.5 (excluding) |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | RedHat | rh-php71-php-0:7.1.30-1.el7 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS | RedHat | rh-php71-php-0:7.1.30-1.el7 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS | RedHat | rh-php71-php-0:7.1.30-1.el7 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS | RedHat | rh-php71-php-0:7.1.30-1.el7 | * |
| Php5 | Ubuntu | trusty | * |
| Php5 | Ubuntu | upstream | * |
| Php7.0 | Ubuntu | upstream | * |
| Php7.0 | Ubuntu | xenial | * |
| Php7.1 | Ubuntu | artful | * |
| Php7.1 | Ubuntu | upstream | * |
| Php7.2 | Ubuntu | bionic | * |
| Php7.2 | Ubuntu | devel | * |
| Php7.2 | Ubuntu | upstream | * |