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.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| 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 | esm-infra-legacy/trusty | * |
| Php5 | Ubuntu | trusty | * |
| Php5 | Ubuntu | trusty/esm | * |
| Php5 | Ubuntu | upstream | * |
| Php7.0 | Ubuntu | esm-infra/xenial | * |
| 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 | esm-infra/bionic | * |
| Php7.2 | Ubuntu | upstream | * |
Potential Mitigations
References
- 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
- https://www.tenable.com/security/tns-2018-12
- https://www.tenable.com/security/tns-2019-07
- 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
- https://www.tenable.com/security/tns-2018-12
- https://www.tenable.com/security/tns-2019-07