In PHP versions 8.1.* before 8.1.34, 8.2.* before 8.2.30, 8.3.* before 8.3.29, 8.4.* before 8.4.16, 8.5.* before 8.5.1 when using the PDO PostgreSQL driver with PDO::ATTR_EMULATE_PREPARES enabled, an invalid character sequence (such as x99) in a prepared statement parameter may cause the quoting function PQescapeStringConn to return NULL, leading to a null pointer dereference in pdo_parse_params() function. This may lead to crashes (segmentation fault) and affect the availability of the target server.
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 | 8.1.0 (including) | 8.1.34 (excluding) |
| Php | Php | 8.2.0 (including) | 8.2.30 (excluding) |
| Php | Php | 8.3.0 (including) | 8.3.29 (excluding) |
| Php | Php | 8.4.0 (including) | 8.4.16 (excluding) |
| Php | Php | 8.5.0 (including) | 8.5.1 (excluding) |
| Red Hat Enterprise Linux 10.0 Extended Update Support | RedHat | php-0:8.3.19-1.el10_0.1 | * |
| Red Hat Enterprise Linux 8 | RedHat | php:8.2-8100020260106091451.f7998665 | * |
| Red Hat Enterprise Linux 9 | RedHat | php:8.2-9070020260107073439.9 | * |
| Red Hat Enterprise Linux 9 | RedHat | php:8.3-9070020260108073701.9 | * |
| Red Hat Enterprise Linux 9.4 Extended Update Support | RedHat | php:8.2-9040020260116191026.9 | * |
| Red Hat Enterprise Linux 9.6 Extended Update Support | RedHat | php:8.2-9060020260116185805.9 | * |
| Red Hat Enterprise Linux 9.6 Extended Update Support | RedHat | php:8.3-9060020260116180534.9 | * |
| Php8.1 | Ubuntu | jammy | * |
| Php8.3 | Ubuntu | noble | * |
| Php8.4 | Ubuntu | devel | * |
| Php8.4 | Ubuntu | plucky | * |
| Php8.4 | Ubuntu | questing | * |