Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2023-34095

Gravedad CVSS v3.1:
CRÍTICA
Tipo:
CWE-121 Desbordamiendo de búfer basado en pila (Stack)
Fecha de publicación:
14/06/2023
Última modificación:
10/04/2025

Descripción

*** Pendiente de traducción *** cpdb-libs provides frontend and backend libraries for the Common Printing Dialog Backends (CPDB) project. In versions 1.0 through 2.0b4, cpdb-libs is vulnerable to buffer overflows via improper use of `scanf(3)`. cpdb-libs uses the `fscanf()` and `scanf()` functions to parse command lines and configuration files, dropping the read string components into fixed-length buffers, but does not limit the length of the strings to be read by `fscanf()` and `scanf()` causing buffer overflows when a string is longer than 1023 characters. A patch for this issue is available at commit f181bd1f14757c2ae0f17cc76dc20421a40f30b7. As all buffers have a length of 1024 characters, the patch limits the maximum string length to be read to 1023 by replacing all occurrences of `%s` with `%1023s` in all calls of the `fscanf()` and `scanf()` functions.

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:openprinting:cpdb-libs:*:*:*:*:*:*:*:* 1.0 (incluyendo) 2.0 (excluyendo)
cpe:2.3:a:openprinting:cpdb-libs:2.0:beta1:*:*:*:*:*:*
cpe:2.3:a:openprinting:cpdb-libs:2.0:beta2:*:*:*:*:*:*
cpe:2.3:a:openprinting:cpdb-libs:2.0:beta3:*:*:*:*:*:*
cpe:2.3:a:openprinting:cpdb-libs:2.0:beta4:*:*:*:*:*:*